KONINKLIJKE PHILIPS N.V.Download PDFPatent Trials and Appeals BoardOct 1, 20212021002151 (P.T.A.B. Oct. 1, 2021) Copy Citation UNITED STATES PATENT AND TRADEMARK OFFICE UNITED STATES DEPARTMENT OF COMMERCE United States Patent and Trademark Office Address: COMMISSIONER FOR PATENTS P.O. Box 1450 Alexandria, Virginia 22313-1450 www.uspto.gov APPLICATION NO. FILING DATE FIRST NAMED INVENTOR ATTORNEY DOCKET NO. CONFIRMATION NO. 15/532,117 06/01/2017 STEFFEN WEISS 2014P01268WOUS 3610 24737 7590 10/01/2021 PHILIPS INTELLECTUAL PROPERTY & STANDARDS 1600 Summer Street 5th Floor Stamford, CT 06905 EXAMINER FRITH, SEAN A ART UNIT PAPER NUMBER 3793 NOTIFICATION DATE DELIVERY MODE 10/01/2021 ELECTRONIC Please find below and/or attached an Office communication concerning this application or proceeding. The time period for reply, if any, is set in the attached communication. Notice of the Office communication was sent electronically on above-indicated "Notification Date" to the following e-mail address(es): katelyn.mulroy@philips.com marianne.fox@philips.com patti.demichele@Philips.com PTOL-90A (Rev. 04/07) UNITED STATES PATENT AND TRADEMARK OFFICE ____________________ BEFORE THE PATENT TRIAL AND APPEAL BOARD ____________________ Ex parte STEFFEN WEISS ________________ Appeal 2021-002151 Application 15/532,117 Technology Center 3700 ____________ Before ANNETTE R. REIMERS, BRANDON J. WARNER, and LISA M. GUIJT, Administrative Patent Judges. GUIJT, Administrative Patent Judge. DECISION ON APPEAL STATEMENT OF THE CASE Appellant1 seeks our review under 35 U.S.C. § 134(a) of the rejection of claims 1, 4–18, and 20.2 We have jurisdiction under 35 U.S.C. § 6(b). 1 We use the word “Appellant” to refer to “applicant” as defined in 37 C.F.R. § 1.42. Appellant identifies Koninklijke Philips, N.V. as the real party in interest. Appeal Br. 1. 2 In view of the Examiner’s withdrawal of the rejection of claims 2, 3, and 19 under 35 U.S.C. § 103, there are no standing rejections of claims 2, 3, and 19 for review on appeal, and prior art references Biber (US 2010/0176809 A1; published July 15, 2010), Assif (US 2011/0046475 A1; published Feb. 24, 2011), Yang (US 2012/0306494 A1; published Dec. 6, 2012), and Driesel (US 2014/0197832 A1; published July 17, 2014) are not relied on by the Examiner in the rejection of the claims 1, 4–18, and 20. See Subsequent Appeal 2021-002151 Application 15/532,117 2 We AFFIRM. THE INVENTION Appellant’s invention relates to “magnetic resonance imaging, in particular to apparatus and methods for preventing the overheating of a subject during magnetic resonance imaging.” Spec. 1:2–3. Claims 1, 10, 11, 14, and 20 are the independent claims on appeal. Claim 1, reproduced below, is illustrative of the subject matter on appeal. 1. A magnetic resonance imaging system for acquiring magnetic resonance data from a subject within an imaging zone, wherein the magnetic resonance imaging system comprises: a magnetic resonance imaging antenna comprising a plurality of loop antenna elements wherein the magnetic resonance imaging antenna further comprises multiple infrared thermometry sensors, wherein the magnetic resonance imaging antenna is configured for being positioned adjacent to an external surface of the subject, such that at least a portion of the multiple infrared thermometry sensors becomes directed towards the external surface when the magnetic resonance imaging antenna is positioned adjacent to the external surface of the subject; a memory containing machine executable instructions and pulse sequence instructions, and a processor for controlling the magnetic resonance imaging system, wherein execution of the machine executable instructions causes the processor to: acquire the magnetic resonance data by controlling the magnetic resonance imaging system with the pulse sequence instructions; Examiner’s Answer to Appeal Brief, dated Dec. 28, 2020 (“Subs. Ans.”) 3– 4, 8–9, 17. Claims 2, 3, and 19 are therefore not part of the instant appeal. Appeal 2021-002151 Application 15/532,117 3 repeatedly measure at least one surface temperature of the subject with multiple infrared thermometry sensors during acquisition of the magnetic resonance data; and perform a predefined action if the at least one surface temperature is above a predefined temperature, for reducing the risk of the subject becoming overheated. THE REJECTIONS3 The Examiner relies upon the following as evidence in support of the rejections: Name Reference(s) Date Grist US 2006/0064002 A1 Mar. 23, 2006 Iwamatsu US 2007/0230767 A1 Oct. 4, 2007 Wohlfarth US 2009/0215384 A1 Aug. 27, 2009 Sueoka US 2013/0154642 A1 June 20, 2013 McBride US 2013/0318693 A1 Dec. 5, 2013 Landschuetz US 2014/0015528 A1 Jan. 16, 2014 Okamoto US 2014/0062485 A1 Mar. 6, 2014 Lee US 2014/0125339 A1 May 8, 2014 Van Den Brink WO 2013/054231 A2 Apr. 18, 2013 The following rejections are before us for review: I. Claims 1, 7–9, and 14 stand rejected under 35 U.S.C. § 103 as unpatentable over Van Den Brink, Sueoka, and Lee. Final Act. 3–10. II. Claim 4 stands rejected under 35 U.S.C. § 103 as unpatentable over Van Den Brink, Sueoka, Lee, and Wohlfarth. Final Act. 16. 3 The Examiner’s rejection of claim 10 under 35 U.S.C. § 112(b) and of claims 2, 3, and 19 under 35 U.S.C. § 103 have been withdrawn. Subs. Ans. 3. Appeal 2021-002151 Application 15/532,117 4 III. Claim 5 stands rejected under 35 U.S.C. § 103 as unpatentable over Van Den Brink, Sueoka, Lee, and Grist. Final Act. 16–18. IV. Claims 6 and 16 stand rejected under 35 U.S.C. § 103 as unpatentable over Van Den Brink, Sueoka, Lee, and Iwamatsu. Final Act. 18–19, 37–38. V. Claims 10, 18, and 20 stand rejected under 35 U.S.C. § 103 as unpatentable over Van Den Brink, Sueoka, Okamoto, and Grist. Final Act. 20–30, 38–40. VI. Claims 11 and 17 stand rejected under 35 U.S.C. § 103 as unpatentable over Van Den Brink, Sueoka, and Okamoto. Final Act. 30–35. VII. Claim 12 stands rejected under 35 U.S.C. § 103 as unpatentable over Van Den Brink, Sueoka, Okamoto, and Iwamatsu. Final Act. 35. VIII. Claim 13 stands rejected under 35 U.S.C. § 103 as unpatentable over Van Den Brink, Sueoka, Okamoto, Iwatmatsu, and McBride. Final Act. 36. IX. Claim 15 stands rejected under 35 U.S.C. § 103 as unpatentable over Van Den Brink, Sueoka, Lee, and Landschuetz. Final Act. 36–37. OPINION Rejection I Independent claim 1 and dependent claims 8 and 9 Regarding independent claim 1, the Examiner finds that Van Den Brink’s “radiofrequency system is considered to be a magnetic resonance antenna,” wherein “[the] radiofrequency system applies RF energy to the subject.” Final Act. 3–4 (citing Van Den Brink 1:10–12, 2:19–20). The Examiner also finds that Van Den Brink discloses that multiple (“at least one”) temperature sensors may be “integrated in the examination region; e.g. . . . in the coil array.” Id. at 4 (citing Van Den Brink 9:1–5). The Examiner Appeal 2021-002151 Application 15/532,117 5 further finds that Van Den Brink’s Figure 1 “shows RF coil system 5 positioned adjacent to the patient for detecting magnetic resonance signals” and that “[d]etecting temperature at the subjects [sic] skin indicates that the temperature sensors are directed towards the external surface of the subject.” Id. at 5 (citing Van Den Brink 9:1–4, 11:17–32, Fig. 1). See also Subs. Ans. 4 (citing Van Den Brink 11:22–32 for disclosing, inter alia, temperature sensor 16); Van Den Brink 11:22–24 (“[t]he second means of detecting the actual temperature of the individual’s body is via a temperature sensor 16, which is applied to the body of the individual S in the examination region 3”). The Examiner relies on Sueoka for disclosing that an MRI antenna may comprise multiple infrared thermometry sensors (i.e., “temperatures sensors 70A through 70D . . . embedded within the [MRI] antenna structure”). Final Act. 6 (citing Sueoka ¶¶ 73–75, Fig. 2). The Examiner reasons that it would have been obvious to have modified the magnetic resonance patient surface temperature monitoring system of Van Den Brink to incorporate the infrared thermometry sensor antenna configuration as taught by Sueoka because infrared radiation thermometers are capable of measuring the temperature of a measurement object in a noncontact manner, which is advantageous in terms of taking a shorter time for measuring temperature. Final Act. 6–7 (citing Sueoka ¶ 75) (emphasis added); see also Ans. 6 (“[a]lthough Sueoka is concerned with temperatures of the gradient coil, it teaches . . . that infrared thermometry sensors are used for non-contact sensing in the magnetic field of an MRI scanner”); Sueoka ¶ 75 (“temperatures sensors 70A to 70D may be infra-red radiation thermometers . . . capable of measuring the temperature of a measurement object in a Appeal 2021-002151 Application 15/532,117 6 noncontact manner”). Notably, the Examiner explains (albeit in the context of dependent claim 7) that Van Den Brink’s RF coil is modified to incorporate Sueoka’s infrared thermometry sensor antenna configuration, such that the infrared thermometry sensors “are disposed in the locations of Sueoka’s teachings,” which are depicted in Sueoka’s Figure 2 as being distributed about the circumference of the cross-section of a coil. Id. at 8. Thus, the Examiner’s rejection is to modify Van Den Brink’s RF coil, which has at least one integrated, local sensor, to have a sensor configuration that includes multiple infrared thermometry sensors embedded within the coil, as taught in Sueoka.4 See, e.g., Sueoka, Fig. 2 (infrared thermometers 70A to 70D). Appellant acknowledges that “Van Den Brink suggest[s] that the temperature sensor 16 could also be applied to . . . the coil array . . . illustrated as a whole-body RF coil 5 which is mounted around the periphery of the bore.” Appeal Br. 11 (citing Van Den Brink 5:13–26). Appellant argues, however, that, in Van Den Brink, “the whole-body coil 5 is not configured to be positioned adjacent to an external surface of the subject,” and therefore, “even if the temperature sensor were affixed to the RF coil, it would not ‘become’ directed toward the external surface of the subject when the magnetic resonance antenna is positioned adjacent the external surface of 4 The Examiner relies on Lee for disclosing “a magnetic resonance imaging antenna comprising a plurality of loop antenna elements,” and reasons that it would have been obvious to have modified Van Den Brink’s MRI system, as modified by Sueoka, “to incorporate the plurality of loop antenna elements as taught by Lee because utilizing a plurality of RF loop coils can be arranged to increase the uniformity of an RF magnetic field throughout the human body and enables independent adjustments to individual coil elements.” Final Act. 7 (citing, e.g., Lee ¶ 7). Appeal 2021-002151 Application 15/532,117 7 the subject.” Appeal Br. 11. Appellant also argues that “Van Den Brink does not disclose that the whole-body RF coil is positionable or movable,” and that, “[i]ndeed, . . . it is not.” Id. at 11–12. The Examiner responds that, “[e]ven with the use of a full-body coil, the broadest reasonable interpretation of ‘positioned adjacent to an external surface of the subject’ would include a typical RF coil antenna of an MR scanner.” Subs. Ans. 5. During examination of a patent application, pending claims are given their broadest reasonable construction consistent with the specification. In re Am. Acad. of Sci. Tech Ctr., 367 F.3d 1359, 1364 (Fed. Cir. 2004). Under the broadest reasonable interpretation standard, claim terms are given their ordinary and customary meaning as would be understood by one of ordinary skill in the art in the context of the entire disclosure. In re Translogic Tech., Inc., 504 F.3d 1249, 1257 (Fed. Cir. 2007). As set forth supra, claim 1 requires that [a] magnetic resonance imaging antenna is configured for being positioned adjacent to an external surface of the subject, such that at least a portion of the multiple infrared thermometry sensors becomes directed towards the external surface when the magnetic resonance imaging antenna is positioned adjacent to the external surface of the subject. The Specification does not provide a special definition for the claim term “adjacent.” We find that the broadest reasonable construction of the claim term “adjacent,” consistent with Appellant’s Specification is “not distant” or “nearby.” See Appendix A (https://www.merriam- webster.com/dictionary/adjacent (last visited Sept. 16, 2021)). Van Den Brink discloses: Appeal 2021-002151 Application 15/532,117 8 As is known in the art, the MRI apparatus 1 includes one or more powerful, gradient coils and a radio-frequency (RF) system 5 having an RF coil for transmission of a RF signal or field into the cylindrical examination region 3 in the direction of arrow A during the MR examination, all of these components forming a MR generation unit and being conveniently housed within the housing 4. The cylindrical cavity in the housing 4 which forms the examination region 3 is dimensioned such that the body of the individual or subject S is very close to the sides or walls of the cavity, thus providing only very limited access. Van Den Brink 10:5–12 (emphasis added). Thus, a preponderance of the evidence supports the Examiner’s finding that Van Den Brink’s RF system 5 (or whole body RF coil, as characterized by Appellant) is adjacent or not distant from an external surface of the subject, as required by claim 1. We also find that the claim language “configured for being positioned” does not require the MRI antenna to be movable, but rather, requires the MRI antenna to be able to be positioned, for example, in a fixed position, adjacent to an external surface of the subject, such that at least a portion of the multiple infrared thermometry sensors become directed towards the subject’s external surface when so fixed. Van Den Brink’s Figure 1 depicts RF system 5 as being able to be positioned adjacent to an external surface of the subject, and therefore, Appellant’s argument also does not apprise us of error in the Examiner’s finding that Van Den Brink’s RF system 5 is configured for being positioned, as required by claim 1. Arlington Indus., Inc. v. Bridgeport Fittings, Inc., 345 F.3d 1318, 1327 (Fed. Cir. 2003) (it is improper to read a limitation from the specification into the claims). Next, Appellant argues that “Van Den Brink does not disclose multiple infrared thermometry sensors.” Appeal Br. 12. Appellant’s Appeal 2021-002151 Application 15/532,117 9 argument, however, does not address the rejection as articulated by the Examiner, which relies on Van Den Brink for disclosing multiple thermometry sensors and on Sueoka for teaching that, in an MRI environment, infrared thermometry sensors provide contactless temperature measurement. See also Subs. Ans. 5–6; id. at 6 (“[a]lthough Sueoka is concerned with temperatures of the gradient coil, it teaches . . . that infrared thermometry sensors are used for non-contact sensing in the magnetic field of an MRI scanner”). Non-obviousness cannot be established by attacking references individually where the rejection is based upon the teachings of a combination of references. In re Merck & Co., 800 F.2d 1091, 1097 (Fed. Cir. 1986); In re Keller, 642 F.2d 413, 425 (CCPA 1981). Appellant also argues that “Sueoka does not embed temperature sensors in a magnetic resonance imaging antenna structure,” but rather, Sueoka’s infrared thermometry sensors “are embedded in a gradient coil 26,” which “applies spatial encoding magnetic field gradient pulses in the imaging region but does not excite, manipulate, nor receive magnetic resonance data signals from the subject,” and thus, “do not become directed toward the external surface of the subject.” Appeal Br. 12 (italics added); Reply Br. 3–4. Again, Appellant’s argument does not address the Examiner’s proposed modification of Van Den Brink’s RF coil to incorporate infrared thermometry sensors embedded in a coil as taught by Sueoka. In other words, the Examiner does not propose bodily incorporating Sueoka’s gradient coil into Van Den Brink’s MRI system, but rather, the Examiner’s combination modifies Van Den Brink’s RF coil. “The test for obviousness is not whether the features of a secondary reference may be bodily Appeal 2021-002151 Application 15/532,117 10 incorporated into the structure of the primary reference . . . .” In re Keller, at 425; In re Mouttet, 686 F.3d 1322, 1332 (Fed. Cir. 2012). Appellant also argues that “Sueoka discloses a different structure which operates in a different way to achieve a different end result to address a different problem than Van Den Brink.” Appeal Br. 12. This argument does not apprise us of error in the Examiner’s findings or reasoning relative to modifying Van Den Brink, in view of Sueoka. For example, although Sueoka’s use of contactless infrared sensors measure the temperature of an object other than the patient within the MRI environment, and integrates the sensors into a gradient coil assembly rather than an RF coil, Sueoka nonetheless discloses using multiple infrared sensors embedded in a coil for contact-less measurements of temperatures in an MRI system, as relied on by the Examiner. In the Reply Brief, Appellant argues for the first time that Lee’s “transverse electromagnetic (TEM) coil is not a loop coil” and also that Lee’s “birdcage coil . . . [does] not function as a loop coil.” Reply Br. 4–5. Appellant does not, however, provide good cause as to why this new argument relative to the Examiner’s reliance on Lee for disclosing loop antenna elements was not presented in the Appeal Brief. See Appeal Br. 13– 14 (arguing only that “Lee fails to cure these same shortcomings of Van Den Brink,” because Lee’s coil “is not positioned adjacent an external surface of the subject and does not carry thermometry sensors directed,” as claimed). Thus, Appellant’s new argument is untimely and therefore, waived. See 37 C.F.R. § 41.41(b)(2) (“Any argument raised in the reply brief which was not raised in the appeal brief, or is not responsive to an argument raised in the examiner’s answer, . . . will not be considered by the Board for purposes of Appeal 2021-002151 Application 15/532,117 11 the present appeal, unless good cause is shown.”); Ex parte Borden, 93 USPQ2d 1473 (BPAI 2010) (informative). Accordingly, we sustain the Examiner’s rejection of independent claim 1. Appellant chose not to present arguments for the patentability of claims 8 and 9 apart from the arguments presented for independent claim 1 from which they depend; therefore, for essentially the same reasons as set forth supra, we also sustain the Examiner’s rejection of claims 8 and 9. Appeal Br. 10–26. Dependent claim 7 Claim 7 depends from independent claim 1 and recites, in relevant part, “wherein the magnetic resonance imaging antenna includes capacitors and wherein the at least a subset of the multiple infrared thermometry sensors is disposed adjacent the capacitors.” Appeal Br. 29 (Claims App.). The Examiner finds that Lee discloses “resonant frequency adjustment capacitors 141, 142, 143, 144” (Final Act. 8) “located throughout the loop coil system as capacitors are an integral part of the functionality of a magnetic resonance antenna” (Subs. Ans. 10–11 (citing Lee, Figs. 2, 3)). Thus, the Examiner reasons that modifying Van Den Brink’s antenna, as modified by Sueoka and Lee, to include Lee’s loop antenna elements would “necessitate” placing at least a subset of the multiple infrared thermometry sensors adjacent to or nearby the capacitors. Final Act. 8. The Examiner finds that “the broadest reasonable interpretation of the limitation ‘adjacent the capacitors’ would include the integrated temperature sensors in the coils as taught by the combined invention.” Subs. Ans. 11–12. Appellant argues that there is no suggestion of moving the thermal sensor of Van Den Brink to be adjacent a capacitor of a loop coil, nor is there any Appeal 2021-002151 Application 15/532,117 12 suggestion of moving the infrared thermometry sensors of Sueoka out of the gradient coil assembly into the magnetic imaging antenna, much less positioning the infrared thermometry sensor adjacent the capacitors of the magnetic resonance imaging antenna. Appeal Br. 17. Appellant also argues that “Lee evidences no appreciation that heating is greater adjacent capacitors, nor does Lee teach or fairly suggest that the potential for heating adjacent to capacitors is so high that one should monitor for temperature adjacent the capacitors” and “[n]either Lee, nor Van Den Brink, nor the combination thereof recognize the added heating potential adjacent capacitors, much less suggest that temperature should specifically be sensed adjacent the capacitors.” Reply Br. 6–7. First, we agree with the Examiner’s interpretation that the language of claim 7 is broad, in that only a subset (maybe two) of the multiple infrared thermometry sensors are required to be adjacent or nearby the capacitors. Further, to the extent Appellant’s argument is holding the Examiner to the old TSM (teaching, suggestion, or motivation) standard, such a standard is not required. KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 415 (2007). The Examiner is also not proposing moving the thermal sensor of Van Den Brink to be adjacent a capacitor of a loop coil, as argued by Appellant; rather, the Examiner reasons that modifying Van Den Brink’s RF coil to incorporate multiple infrared thermometry sensors embedded in the coil, as taught in Sueoka, and also to be a plurality of loop antenna elements including resonant frequency adjustment capacitors, as taught in Lee, would necessarily result in at least a subset of the sensors being located nearby the capacitors. Appellant’s argument does not apprise us of error in the Examiner’s reasoning. Finally, the Examiner’s proposed modification is not required to be for the same purpose as Appellant’s present invention. See In Appeal 2021-002151 Application 15/532,117 13 re Kahn, 441 F.3d 977, 990 (Fed. Cir. 2006) (skilled artisan need not be motivated to combine the prior art for the reason contemplated by an inventor). Accordingly, we sustain the Examiner’s rejection of dependent claim 7. Independent claim 14 Independent claim 14 recites [a] magnetic resonance imaging antenna comprising a plurality of antenna elements, wherein each of the antenna elements is a loop antenna element, wherein the magnetic resonance imaging antenna further comprises a plurality of infrared thermometry sensors, wherein the magnetic resonance imaging antenna is configured for being positioned adjacent to an external surface of the subject, wherein at least a portion of the multiple infrared thermometry sensors are directed towards the external surface when the magnetic resonance imaging antenna is positioned adjacent to the external surface. Appeal Br. 32 (Claims App.). The Examiner applies the same or similar findings and reasoning relative to Van Den Brink, Sueoka, and Lee to independent claim 14 as applied by the Examiner to independent claim 1 discussed supra. Final Act. 9–10. Appellant argues that “Van Den Brink discloses a whole-body RF coil 5 and a temperature sensor 16 which is not part of the imaging antenna.” Appeal Br. 22. However, Appellant does not support this conclusory statement with any argument or evidence, which is contrary to Appellant’s acknowledgement that “Van Den Brink suggest[s] that the temperature sensor 16 could also be applied to . . . the coil array . . . illustrated as a whole-body RF coil 5 which is mounted around the periphery of the bore.” Appeal 2021-002151 Application 15/532,117 14 Id. at 11 (citing Van Den Brink 5:13–26). Thus, we are not apprised of error in the Examiner’s reliance on Van Den Brink’s RF system 5 as corresponding to an MRI antenna or on Van Den Brinks’s teaching that a temperature sensor may be integrated into the antenna (or coil), in view of Appellant’s conclusory argument. In re Wood, 582 F.2d 638, 642 (CCPA 1978) (“Mere lawyer’s arguments and conclusory statements in the specification, unsupported by objective evidence, are insufficient to establish unexpected results.”) Appellant also argues that [t]he infrared thermometry sensors of Sueoka are not a part of an imaging antenna, are not disposed adjacent an external surface of the subject and are not directed toward the external surface of the subject and would be blocked from receiving IR light by RF coil components and gradient coil components. Appeal Br. 22. As discussed supra, Appellant’s argument does not apprise us of error in the Examiner’s rejection, which does not bodily incorporate the positioning of the infrared thermometry sensors in a gradient magnetic field coil into Van Den Brink’s gradient coils, but rather incorporates a Sueoka’s multiple infrared thermometry sensors to be embedded in Van Den Brink’s RF coil or antenna of RF system 5. Accordingly, we sustain the examiner’s rejection of independent claim 14. Rejections II, IV, and IX Appellant chose not to present arguments for the patentability of claims 4, 6, and 16, which depend from independent claim 1, and claim 15, which depends from independent claim 14, apart from the arguments presented for independent claims 1 and 14; therefore, for essentially the Appeal 2021-002151 Application 15/532,117 15 same reasons as set forth supra, we also sustain the Examiner’s rejections of claims 4, 6, 15, and 16. Appeal Br. 10–26. Rejection III Claim 5 depends from independent claim 1 and recites, in relevant part, [w]herein the pulse sequence instructions generate pulse sequences modeled to keep induced temperatures within safety margins which increase scan time and wherein the processor is further configured to reduce the safety margins during generation of the pulse sequences to reduce scan time based on the measured surface temperatures. Appeal Br. 28–29 (Claims App.) (emphases added). The Examiner applies the same or similar findings and reasoning relative to at least Van Den Brink and Grist to dependent claim 5 as applied by the Examiner to independent claim 20 discussed infra. Final Act. 16–18; 25–30. Notably, claim 5 requires, relative to pulse sequence instructions, “reduc[ing] the safety margin,” as compared to claim 20’s requirement of “shorten[ing] magnetic resonance data acquisition times.” Appeal Br. 28– 29, 33–34 (Claims App.). It is known in the prior art, for example, that (i) “[t]he specific absorption rate (SAR5) of RF energy by individual who undergo examination with a MR apparatus is . . . the subject of strict regulation” (Van Den Brink 1:7–9); (ii) a desirable object of an MRI system invention is “to shorten the scan time of MRI procedures” (Grist ¶ 13); (iii) it is desired that “the rate of image data acquisition is slowed only when tissue temperature actually rises to an undesirable level at any location in the 5 Spec. 1:22–23 (“The term Specific Absorption Ratio (SAR) is the radio frequency power absorbed per unit mass in tissue and is a measure of overheating.”). Appeal 2021-002151 Application 15/532,117 16 subject” (Grist ¶ 13). Thus, these limitations of claims 5 and 20 are similar, in that it is known in the prior art that reducing safety margins (i.e., allowing a higher rate of absorption of RF energy by the subject) corresponds to shortening data acquisition times (i.e., allowing faster scan times). See also Final Act. 17 (relative to claim 5, “the SAR limit . . . is considered to be a safety margin and . . . increasing of SAR loads . . . reduce[s] scan times”). Accordingly, for essentially the same reasons as stated infra with respect to independent claim 20, we also sustain the Examiner’s rejection of dependent claim 5. Rejection V Independent claim 10 Independent claim 10 recites, in relevant part, “a computer processor configured to control the [MRI] system to: . . . [b]ased on the measured surface temperature, modify the pulse sequence instructions during the acquisition of the RF magnetic resonance data to accelerate the acquisition of the magnetic resonance data.” Appeal Br. 30–31 (Claims App.) (emphasis added). Appellant submits, “Claim 10 is based on claim 1 but includes several narrowing limitations.” Appeal Br. 18. Although Appellant recites such claim limitations, for example, requiring “the magnetic resonance imaging antenna to be configured to at least partially conform to the external surface of the subject” and “for the loop elements to extend generally parallel to the external surface of the subject,” Appellant does not present arguments directed to these claim limitations. Appeal Br. 18; see also In re Lovin, 652 F.3d 1349, 1357 (Fed. Cir. 2011) (Rule 41.37 requires more than recitation Appeal 2021-002151 Application 15/532,117 17 of the claim elements and a naked assertion that the elements are not found in the prior art). Appellant also argues that “Grist does not teach or fairly suggest increasing the SAR load.” Appeal Br. 18. In other words, we understand Appellant’s contention to be that Grist fails to disclose “modif[ing] the pulse sequence instructions during the acquisition of the RF magnetic resonance data to accelerate the acquisition of the magnetic resonance data,” as claimed, which also increases the radio frequency power absorbed per unit mass in the tissue, raising the temperature of the tissue (or SAR load). The Examiner applies the same or similar findings and reasoning relative to at least Van Den Brink and Grist to independent claim 10 as applied by the Examiner to independent claim 20 discussed infra. Final Act. 20–30. Notably, claim 10 requires, relative to pulse sequence instructions, “accelerat[ing] the acquisition of the magnetic resonance data,” which, as recognized by the prior art and explained infra, is another way of stating claim 20’s requirement of “shorten[ing] magnetic resonance data acquisition times.” Appeal Br. 30–31, 33–34 (Claims App.). Accordingly, for essentially the same reasons as stated infra with respect to independent claim 20, we also sustain the Examiner’s rejection of independent claim 10. Dependent claim 18 Appellant chose not to present arguments for the patentability of claim 18 apart from the arguments presented for independent claim 11 from which it depends; therefore, for essentially the same reasons as set forth infra, we also sustain the Examiner’s rejection of claim 18. Appeal Br. 20. Appeal 2021-002151 Application 15/532,117 18 Independent claim 20 Independent claim 20 recites “[a] magnetic resonance imaging system for acquiring magnetic resonance data from a subject within an imaging zone,” comprising, inter alia, a processor configured to control the magnetic resonance imaging system to: acquire the magnetic resonance data from the subject using magnetic resonance sequences that induce heating in the subject; repeatedly measure surface temperatures of the subject at the measurement points with the multiple infrared thermometry sensors during acquisition of the magnetic resonance data, and in response to the surface temperatures at one or more of the measurement points being below heating limits during acquisition of the magnetic resonance data, recalculating the magnetic resonance sequences to shorten magnetic resonance data acquisition times. Appeal Br. 34 (Claims App.). The Examiner relies on Van Den Brink for disclosing an MRI system for acquiring magnetic resonance data, and also for disclosing acquiring the magnetic resonance data from the subject using magnetic resonance sequences that induce heating in the subject, repeatedly measuring surface temperatures of the subject at the measurement points with the multiple infrared thermometry sensors (as modified by Sueoka) during acquisition of the magnetic resonance data, and, in response to the surface temperature measurements, performing a predetermined action. Final Act. 27 (citing Van Den Brink 2:17–34). In Van Den Brink, the predetermined action is to adjust cooling devices (i.e., fan 7, cooling pad 9), during acquisition of the magnetic resonance data and based on measured surface temperatures of the subject: Appeal 2021-002151 Application 15/532,117 19 the temperature control system 6 of the apparatus 1 comprises a control unit 12, including a computer processor, which is configured to periodically adjust operation of the two cooling devices 7, 8 over a duration of the MR examination (thereby adjusting the cooling effect they generate on the body of the subject S) . . . in dependence upon the thermal loading that the individual is actually detected as having received from the radio- frequency system 5 during the MR examination. Van Den Brink 10:29–11:2. The Examiner acknowledges that Van Den Brink does not disclose that the predetermined action may be shortening the magnetic resonance data acquisition (or scan) times. Final Act. 28. The Examiner relies on Grist for teaching that the predetermined action may be recalculating the magnetic resonance sequences to shorten magnetic resonance data acquisition times, as required by claim 20. Final Act. 29 (citing, e.g., Grist ¶ 47). The Examiner finds that Grist teaches “increasing SAR load in response to temperature measurements being under a SAR limit” and that “the spacing between RF pulses can be changed,” wherein “‘minimizing scan time’ . . . is considered to be an acceleration of MRI data acquisition.” Subs. Ans. 18 (citing Grist ¶¶ 49, 51). Indeed, Grist discloses, albeit in the context of a prescan mode to acquire a baseline thermal image of the subject (Grist ¶¶ 45, 46), that “[i]f the SAR limit is not exceeded, a determination is made . . . whether the pulse sequence can be changed for the better6 with a resulting incremental increase in SAR” and 6 We are not persuaded by Appellant’s argument that “‘[c]hanged for the better’ appears to be a mental operation performed by the technician in the nature of making what the technician considers to be appropriate changes in the pulse sequence” (Appeal Br. 19), but rather, that a person of ordinary skill in the art would understand that a change for the better in this context means a shorter scan time (and thus, increased SAR load) for the patient. See, e.g., Grist ¶ 11 (“changes are made in the prescribed pulse sequence so that the scan can continue at an optimal rate without violating SAR rules”). Appeal 2021-002151 Application 15/532,117 20 “[i]f so, the pulse sequence is changed and the system loops back to repeat the prescan process” (id. ¶ 47). The Examiner reasons that it would have been obvious to have modified Van Den Brink’s MRI system, as modified by Sueoka7 and Okamoto,8 to incorporate the shortening of magnetic resonance data acquisition times in response to temperature measurement as taught by Grist because the patient experience is improved by shortening of scan time for MRI procedures and this is enabled by dynamically adjusting RF energy application. It reduces the necessary safety factors required and keeps imaging fast unless temperatures rise to undesirable levels. Final Act. 30 (citing Grist ¶ 13). Similar to independent claim 1, Appellant argues that, in Sueoka, the temperature sensors 70A-70D are not disposed in a magnetic resonant imaging antenna, but rather are embedded in the gradient coil assembly, which includes the main gradient coil, iron shims, shim trays, and a shield gradient coil. . . . If such an assembly were incorporated into Van Den Brink, . . . it would be placed outside of the whole-body RF coil 5 where it would be visually blocked from infrared temperature sensing of the patient body temperature. Appeal Br. 25; Reply Br. 12.9 7 Sueoka is relied on by the Examiner for disclosing multiple infrared thermometry sensors embedded in a coil. Final Act. 28. 8 Okamoto is relied on by the Examiner for disclosing a plurality of loop antenna elements. Final Act. 29. 9 Appellant’s new argument presented for the first time in the Reply Brief— that “Van Den Brink is already making a non-contact temperature measurement . . . [such] that if one were to make a second, redundant measurement, one would be motivated to use a different type of temperature measurement, such as a direct contact temperature measurement”—is not responsive to the Examiner’s rejection, which modifies (or replaces) Van Den Brink’s non-contact sensor to be multiple infrared thermometry sensors Appeal 2021-002151 Application 15/532,117 21 We are not persuaded by this argument for the same reasons as stated relative to independent claim 1 discussed supra, namely, that the Examiner’s modification of Van Den Brink relies on Sueoka’s teaching of incorporating infrared thermometry sensors embedded within a coil, but does not bodily incorporate Sueoka’s gradient coil assembly into Van Den Brink’s MRI system. See also Subs. Ans. 18 (“The combined invention would not utilize the position of the sensors in the gradient coil.”). Appellant also submits that [c]laim 20 further calls for the processor to be configured to during [sic] acquisition of magnetic resonance data, in response to surface temperature of one or more of the measuring points being below heating limits, recalculating the magnetic resonance sequence to shorten the magnetic resonance data acquisition time. Appeal Br. 25. Appellant argues that “Grist does not teach or fairly suggest increasing the SAR load.” Appeal Br. 18. In support, Appellant submits that, in Grist, “while operation 310 of the pre-scan sequence may result in an increase in the SAR, it is not performed during the acquisition of the RF magnetic resonance data,” and that, in Grist, “[d]uring the acquisition of the magnetic resonance data by the method of Fig. 5, adjustments are only made to reduce the SAR.” Id. We are not persuaded by Appellant’s argument. The Examiner relies on Van Den Brink for disclosing a processor that responds to the measured surface temperatures during data acquisition (as compared to a pre-scan calibration) by performing a predetermined action, and on Grist for the teaching, generally, that such a predetermined action may be to adjust the distributed in Van Den Brink’s RF coil, and is also untimely. Final Act. 28; Reply Br. 13. Appeal 2021-002151 Application 15/532,117 22 RF energy absorbed by the subject. As set forth supra, it is known in the prior art that the RF energy absorbed by the subject is directly dependent upon the scan time (i.e., time taken to acquire data). In addition, the Examiner does not modify Van Den Brink’s processor to only import the specific pre-scan process described in Grist relative to lengthening magnetic resonance data acquisition times. Accordingly, we sustain the Examiner’s rejection of independent claim 20. Rejection VI Regarding independent claim 11, Appellant argues that claim 11 is “patentable for the reason set forth in conjunction with claim 1.” Appeal Br. 19. As discussed supra, we are not persuaded by Appellant’s arguments presented for claim 1. Appellant also argues, with respect to claim 11, that Sueoka’s temperatures sensors 70A-70D are “not in a magnetic resonance imaging antenna” or “positioned adjacent nor directed toward the external surface of the subject,” and that “[b]eing buried in the gradient coil assembly of Sueoka, the temperature sensors 70A-70D cannot measure a surface temperature of the subject.” Appeal Br. 19–20; Reply Br. 9. However, as discussed supra, this argument is not responsive to the rejection as articulated by the Examiner, which does not bodily incorporate Sueoka’s gradient coil assembly into Van Den Brink’s MRI system, but rather incorporates Sueoka’s multiple infrared thermometry sensor configuration into Van Den Brink’s RF coil or antenna of RF system 5. Accordingly, we sustain the Examiner’s rejection of independent claim 11. Appellant chose not to present arguments for the patentability of Appeal 2021-002151 Application 15/532,117 23 dependent claim 17, which depends from independent claim 11, apart from the arguments presented for independent claim 11. Appeal Br. 20. Therefore, we also sustain the Examiner’s rejection of claim 17. Rejection VII Claim 12 depends from independent claim 11 and recites, in relevant part, “wherein the method further comprises placing an infrared transparent garment on the outer surface of the subject before acquiring the magnetic resonance data.” Appeal Br. 32 (Claims App.). The Examiner relies on Iwamatsu for disclosing “an electromagnetic medical imaging system,” which comprises “placing an infrared transparent garment on the outer surface of a subject before acquiring the magnetic resonance data.” Final Act. 35 (citing Iwamatsu ¶¶ 132–135). The Examiner reasons that it would have been obvious to have modified Van Den Brink’s MRI system, as modified by Sueoka and Okamoto, to include the step of placing an infrared transparent garment on the outer surface of the subject, as taught in Iwamatsu, to provide “visual concealment of the patient’s body while still allowing infrared wavelengths to pass through it; which adds additional privacy for the patient.” Id. Appellant argues that “Iwamatsu is not analogous art,” because “Iwamatsu is directed to an alternate to magnetic resonance.” Appeal Br. 20. In support, Appellant submits that “Iwamatsu teaches replacing magnetic resonance, x-ray CT, or PET imaging with a different imaging technique using infrared frequency electromagnetic waves.” Id. A reference qualifies as prior art for an obviousness determination when it is analogous to the claimed invention. Innovention Toys, LLC. v. MGA Ent., Inc., 637 F.3d 1314, 1321 (Fed. Cir. 2011). “Two separate tests Appeal 2021-002151 Application 15/532,117 24 define the scope of analogous art: (1) whether the art is from the same field of endeavor, regardless of the problem addressed, and (2) if the reference is not within the field of the inventor’s endeavor, whether the reference still is reasonably pertinent to the particular problem with which the inventor is involved.” In re Bigio, 381 F.3d 1320, 1325 (Fed. Cir. 2004). The Examiner finds that “Iwamatsu is in the field of medical imaging and diagnostics and scanning utilizing electromagnetic waves.” Subs. Ans. 13. Notably, Iwamatsu provides a description of the “BACKGROUND ART” relevant to Iwamatsu’s invention: Conventionally, medical image diagnostic methods and apparatus have become widely available, such as an ultrasonic echo diagnostic method and apparatus, an X-ray tomography and an apparatus therefor (X-ray CT), a magnetic resonance method and apparatus (MRI), and a positron emission tomography and an apparatus therefor (PET). Iwamatsu ¶ 2. We agree with the Examiner and find that both Appellant’s invention and Iwamatsu are in the field of endeavor of medical imaging and diagnostics, and scanning utilizing electromagnetic waves. Thus, Iwamatsu is analogous art to the claimed invention and properly relied on by the Examiner. Appellant also argues that “[i]f one were to follow the fair teachings of Iwamatsu, one would replace the magnetic resonance imaging system of claims 11 and 12 with an infrared wavelength imaging system.” Appeal Br. 20; Reply Br. 9–10. However, this is not the rejection articulated by the Examiner, which relies on Iwamatsu only for its disclosure of an infrared transparent garment, and thus, Appellant’s argument does not apprise us of error in the Examiner’s finding or reasoning. Appeal 2021-002151 Application 15/532,117 25 Accordingly, we sustain the Examiner’s rejection of dependent claim 12. Rejection VIII Claim 13 depends from dependent claim 12, which depends from independent claim 11, and further recites, in relevant part, “wherein the infrared transparent garment is fabricated at least partially from polyethylene foil.” Appeal Br. 32 (Claims App.). The Examiner relies on McBride for disclosing “a gown for use in medical procedures . . . fabricated at least partially from polyethylene foil.” Final Act. 36 (citing McBride ¶ 74). The Examiner also finds that “[h]eat radiates through a variety of materials and heat radiating through a thin film of polyethylene would be readily measured by infrared temperature sensors.” Subs. Ans. 14. The Examiner reasons that it would have been obvious to have modified Van Den Brink’s MRI system, as modified by Sueoka, Okamoto, and Iwamatsu, to use an infrared transparent garment fabricated at least partially from polyethylene foil, as taught in McBride, “[to] reduce[] risk of strike-through or wicking-through by liquids that carry infectious microorganisms.” Id. (citing McBride ¶ 74). Appellant argues that Iwamatsu is not analogous art; however, for the reasons set forth supra, we find that Iwamatsu is analogous art to the Appellant’s invention and properly relied on by the Examiner. Appeal Br. 20. Appellant also argues that “there is no indication in McBride that the laminate material or hospital gowns made therefrom are transparent” and that “McBride gives no reason to believe that hospital gowns should be infrared transparent.” Id. at 21; Reply Br. 10. Appellant submits that “[i]n Appeal 2021-002151 Application 15/532,117 26 order not to block the infrared light, the McBride material would need to be engineered/reengineered to be infrared transparent.” Reply Br. 10. We are not persuaded by Appellant’s argument. The Examiner proposes modifying Iwamatsu’s infrared transparent garment to be at least partially made from polyethylene foil because McBride discloses polyethylene as a known hospital garment material for infectious disease control, and further, in view of the Examiner’s finding that it is also known that heat radiating through a thin film of polyethylene is readily measurable by infrared temperature sensors. Appellant’s argument does not dispute the Examiner’s findings or explain why or how McBride’s polyethylene film would be required to be reengineered to be infrared transparent. Accordingly, we sustain the Examiner’s rejection of dependent claim 13. CONCLUSION The Examiner’s decision rejecting claims 1, 4–18, and 20 is affirmed. Appeal 2021-002151 Application 15/532,117 27 DECISION SUMMARY In summary: Claim(s) Rejected 35 U.S.C. § Reference(s)/Basis Affirmed Reversed 1, 7–9, 14 103 Van Den Brink, Sueoka, Lee 1, 7–9, 14 4 103 Van Den Brink, Sueoka, Lee, Wohlfarth 4 5 103 Van Den Brink, Sueoka, Lee, Grist 5 6, 16 103 Van Den Brink, Sueoka, Lee, Iwamatsu 6, 16 10, 18, 20 103 Van Den Brink, Sueoka, Okamoto, Grist 10, 18, 20 11, 17 103 Van Den Brink, Sueoka, Okamoto 11, 17 12 103 Van Den Brink, Sueoka, Okamoto, Iwamatsu 12 13 103 Van Den Brink, Sueoka, Okamoto, Iwamatsu, McBride 13 15 103 Van Den Brink, Sueoka, Lee, Landschuetz 15 Overall Outcome 1, 4–18, 20 TIME PERIOD FOR RESPONSE No time period for taking any subsequent action in connection with this appeal may be extended under 37 C.F.R. § 1.136(a). See 37 C.F.R. § 1.136(a)(1)(iv). AFFIRMED Copy with citationCopy as parenthetical citation