Ex Parte Iyengar et alDownload PDFPatent Trial and Appeal BoardJun 16, 201613115590 (P.T.A.B. Jun. 16, 2016) Copy Citation UNITED STA TES p A TENT AND TRADEMARK OFFICE APPLICATION NO. FILING DATE FIRST NAMED INVENTOR 13/115,590 05/25/2011 126453 7590 06/20/2016 International Business Machines Corporation - IT Rich Lau - IPLaw Department 2455 South Road, B/008-2 Poughkeepsie, NY 12601 Madhusudan K. Iyengar 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 ATTORNEY DOCKET NO. CONFIRMATION NO. POU920100186US1 3758 EXAMINER ZERPHEY, CHRISTOPHER R ART UNIT PAPER NUMBER 3744 NOTIFICATION DATE DELIVERY MODE 06/20/2016 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): poiplaw2@us.ibm.com ituchman@tuchmanlaw.com PTOL-90A (Rev. 04/07) UNITED STATES PATENT AND TRADEMARK OFFICE BEFORE THE PATENT TRIAL AND APPEAL BOARD Ex parte MADHUSUDAN K. IYENGAR and ROGER R. SCHMIDT Appeal2014-005345 Application 13/115,590 Technology Center 3700 Before JENNIFER D. BAHR, JOHN C. KERINS, and ARTHUR M. PESLAK, Administrative Patent Judges. BAHR, Administrative Patent Judge. DECISION ON APPEAL STATEMENT OF THE CASE Appellants appeal under 35 U.S.C. § 134(a) from the Examiner's decision rejecting claims 1-16. We have jurisdiction under 35 U.S.C. § 6(b). We AFFIRM-IN-PART and ENTER A NEW GROUND OF REJECTION. Appeal2014-005345 Application 13/115,590 THE CLAIMED SUBJECT MATTER Claim 1, reproduced below, is illustrative of the claimed subject matter. 1. A data center comprising: a plurality of cabinets configured to house computer equipment; and at least two main coolant supply lines from which the plurality of cabinets receive coolant; and wherein each of the cabinets includes a cooler with at least two radiators, each radiator receiving coolant from different main coolant supply lines. REJECTIONS I. Claims 3 and 15 stand rejected under 35 U.S.C. § 112, second paragraph, as indefinite. 1 II. Claims 1-3, 5, and 12-15 stand rejected under 35 U.S.C. § 102(b) as anticipated by Sato (US 2008/0232064 Al, pub. Sept. 25, 2008). III. Claims 4 and 16 stand rejected under 35 U.S.C. § 103(a) as unpatentable over Sato and Delia (US 2009/0188659 Al, pub. July 30, 2009). IV. Claims 6 and 7 stand rejected under 35 U.S.C. § 103(a) as unpatentable over Sato and Symonds (US 2006/0151147 Al, pub. July 13, 2006). 1 The Examiner lists "35 U.S.C. § l 12(b )"as the statutory basis for the indefiniteness rejection. Final Act. 2. However, the effective filing date of the present application is May 25, 2011, which is prior to March 16, 2013, the date on which the first inventor to file (FITF) provisions of the America Invents Act (AIA) became effective; thus, the correct statutory basis for the rejection is 35 U.S.C. § 112, second paragraph (the pre-AIA predecessor to 35 U.S.C. § 112 (b)). 2 Appeal2014-005345 Application 13/115,590 V. Claim 8 stands rejected under 35 U.S.C. § 103(a) as unpatentable over Sato and Novotny (US 2009/0071636 Al, pub. Mar. 19, 2009). VI. Claims 9--11 stand rejected under 35 U.S.C. § 103(a) as unpatentable over Sato, Symonds, and Novotny. DISCUSSION Rejection I-Indefiniteness The basis of the Examiner's indefiniteness rejection is that "there is insufficient antecedent basis for" the limitation "the cooler" in line 2 of claims 3 and 15 because "claim 1 introduced a plurality of cabinets each containing a cooler" and "it is unclear to which cooler 'the cooler refers."' Final Act. 2. According to the Examiner "[b ]y merely stating 'the cooler' as claim 3 (and also 15) does, it is not clear if the limitation refers to one or all of the coolers recited in claim 1." Ans. 7. We agree with the Examiner that claims 3 and 15 are ambiguous as to whether "the cooler" refers to one or all of the coolers recited in claim 1. There are two plausible interpretations of claims 3 and 15. The first plausible interpretation is that the radiators of each of the plurality of coolers (of the plurality of cabinets) are positioned as called for in claims 3 and 15. The second plausible interpretation is that the radiators of at least one of the coolers are positioned as called for in claims 3 and 15. "[I]f a claim is amenable to two or more plausible claim constructions, the USPTO is justified in requiring the applicant to more precisely define the metes and bounds of the claimed invention by holding the claim unpatentable under 3 Appeal2014-005345 Application 13/115,590 35 U.S.C. § 112, second paragraph, as indefinite." E'x parte Miyazaki, 89 USPQ2d 1207, 1211 (BP AI 2008) (precedential). For the above reasons, the Examiner's determination that claims 3 and 15 are indefinite is correct. Accordingly, we sustain the rejection of claims 3 and 15 under 35 U.S.C. § 112, second paragraph. We also determine that claims 1 and 13, and claims 2-12 and 14--16, which depend from claim 1, are indefinite for the additional reasons explained below in the New Ground of Rejection. New Ground of Rejection-Indefiniteness Pursuant to our authority under 37 C.F.R. § 41.50(b ), we reject claims 1-16 under 35 U.S.C. § 112, second paragraph, as indefinite. Claims 1-12 and 14-16: The limitation "at least two main coolant supply lines from which the plurality of cabinets receive coolant" in claim 1 is ambiguous, and thus indefinite, because there are two plausible interpretations of this language. See Miyazaki, 89 USPQ2d at 1211. A first plausible interpretation is that the plurality of cabinets receive coolant from each of the at least two main coolant supply lines (i.e., each main coolant supply line must supply coolant to each of the plurality of cabinets) and the second plausible interpretation is that the plurality of cabinets receive coolant from the at least two main coolant supply lines in the aggregate (i.e., no particular main coolant supply line need supply coolant to more than one cabinet, but the plurality of cabinets each receive coolant from one or more of the at least two main coolant supply lines). 2 2 Appellants' Specification describes an embodiment in which "[ e Jach main coolant supply line 208 and 210 supplies coolant to a plurality of cabinets 4 Appeal2014-005345 Application 13/115,590 The limitation "each radiator receiving coolant from different main coolant supply lines" in claim 1 is confusing and/or misleading, especially when read in light of Appellants' disclosure. When read with strict adherence to customary rules of grammar, this limitation suggests that each radiator receives coolant from plural "main coolant supply lines." Appellants' Specification, on the other hand, describes each radiator of each cabinet receiving coolant from one main coolant supply line, with the main coolant supply line from which each radiator receives coolant being a different one of the at least two main coolant supply lines than the main coolant supply line from which any other of the at least two radiators of that cabinet receive coolant. Spec., paras. 5-7, 20, 24, 25; Figs. 1, 2. In determining whether a claim is indefinite, the claim's language must be analyzed, not in a vacuum, but in light of the content of the particular application disclosure, the teachings of prior art, and the claim interpretation that would be given by one possessing the ordinary level of skill in the pertinent art at the time the invention was made. In re Skvorecz, 580 F.3d 1262, 1268 (Fed. Cir. 2009) (citing MPEP § 2173.02). In light of this 200" and "[t]he first coolant line 201 receives coolant from the plurality of cabinets 200 and the second coolant line 203 supplies coolant to the plurality of cabinets 200." Spec., paras. 24, 25. However, Appellants' Specification gives no indication that supplying coolant to a plurality of cabinets from one or more supply lines common to the plurality of cabinets, rather than from individual supply lines for each cabinet, is critical or essential to Appellants' invention. Rather, it is the provision of a different main coolant supply line for each radiator of each cabinet that appears to be critical to achieving the redundancy sought by Appellants' invention. See Spec. 19; Abstract. We must be careful not to read a particular embodiment appearing in the written description into the claim if the claim language is broader than the embodiment. Superguide Corp. v. DirecTV Enterprises, Inc., 358 F.3d 870, 875 (Fed. Cir. 2004). 5 Appeal2014-005345 Application 13/115,590 underlying disclosure in Appellants' Specification, there is ambiguity as to whether the limitation "each radiator receiving coolant from different main coolant supply lines" in claim 1 should be construed as a grammatically- imprecise attempt to claim that each radiator receives coolant from a different main coolant supply line (i.e., from a main coolant supply line that is a different one of the at least two main coolant supply lines than the main coolant supply line from which any other of the at least two radiators of that cabinet receive coolant), as disclosed in the Specification, or, consistent with the customary rules of grammar, as requiring that each radiator receive coolant from plural main coolant supply lines. For the above reasons, claim 1 is indefinite. Claims 2-12 and 14--16, which depend either directly or indirectly from claim 1, incorporate the limitations of claim 1 and, therefore, are likewise indefinite. 3 Claim 13: It is not clear whether claim 13 is directed to "[a] cabinet," as recited in the preamble, or to a system comprising a plurality of cabinets and at least two main coolant supply lines supplying coolant to said plurality of cabinets. The use of the verb "connects," rather than language such as "adapted to connect" or "for connecting," suggests that the claim may require positive connection of each of the radiators to a different main 3 Appellants' use of the term "supply line" as inclusive of both a first coolant line receiving coolant from the cabinets and a second coolant line supplying coolant to the cabinets (see claim 2; Spec., para. 18) appears somewhat unconventional. Sato's use of terminology such as "coolant-supply duct 21" for the coolant supply side of the circuit and "coolant-recovery duct 23" for the coolant recovery or receiving side of the coolant circuit reflects more conventional nomenclature. See Sato, para. 79. 6 Appeal2014-005345 Application 13/115,590 coolant supply line. Similarly, the use of the verb "supplying," rather than language such as "adapted to supply" or "for supplying," suggests positive connection of a main coolant supply line to a plurality of cabinets. The preamble, on the other hand, recites only "[a] cabinet," thereby suggesting that the claim requires only a cabinet, including at least two radiators. Thus, it is unclear whether claim 13 should be read as directed to a system comprising a plurality of cabinets and at least two main coolant supply lines supplying coolant to said plurality of cabinets or to only a cabinet, including at least two radiators, with each radiator being adapted for connection to its own supply line. Moreover, if claim 13 is read as being directed to the system, it is not clear whether each of the plurality of cabinets must include at least two radiators, or whether a system in which only one of the plurality of cabinets includes at least two radiators would satisfy the claim. Additionally, if the claim is read as a system claim, it is not clear to what "said main coolant supply line" refers. The language "to a different main coolant supply line" suggests that the system includes at least two main coolant supply lines, one connected to each of the at least two radiators. It is unclear whether "said main coolant supply line" refers to one of the at least two coolant supply lines (i.e., at least one of the supply lines must connect to the plurality of cabinets), to each of the at least two coolant supply lines (i.e., each of the at least two coolant supply lines must connect to the plurality of cabinets), or to all of the at least two coolant supply lines in the aggregate (i.e., each of the plurality of cabinets is connected to one of the supply lines, but no single supply line necessarily is connected to the plurality of cabinets). For the above reasons, claim 13 is indefinite. 7 Appeal2014-005345 Application 13/115,590 Rejections II-VI-Anticipation and Obviousness Claim 13: Having determined that claim 13 is indefinite, we do not sustain the rejection of this claim under 35 U.S.C. § 102(b) as anticipated by Sato because to do so would require speculation as to the scope of the claims. See In re Aoyama, 656 F.3d 1293, 1300 (Fed. Cir. 2011) (holding that the Board erred in affirming an anticipation rejection of indefinite claims); cf In re Steele, 305 F.2d 859, 862---63 (CCPA 1962) (holding that the Board erred in affirming a rejection of indefinite claims under 35 U.S.C. § 103(a), because the rejection was based on speculative assumptions as to the meaning of the claims). It should be understood, however, that our decision in this regard is based solely on the indefiniteness of the claimed subject matter, and does not reflect on the adequacy of the prior art evidence applied in support of the rejections. Claims 1-12 and 14-16: Next, we tum to the Examiner's rejections of claims 1-12 and 14--16 under 35 U.S.C. §§ 102 and 103. We recognize the inconsistency implicit in our rejection of these claims under 35 U.S.C. § 112, second paragraph, as failing to particularly point out and distinctly claim the invention with a holding that these claims are unpatentable under 35 U.S.C. § 102 or 103. Normally, when substantial confusion exists as to the interpretation of a claim and no reasonably definite meaning can be ascribed to the terms in a claim, a determination as to patentability under 35 U.S.C. § 102 or 103 is not made. See In re Aoyama, 656 F.3d at 1300; In re Steele, 305 F.2d at 862- 63. However, in this instance, we consider it to be desirable to address the rejections of these claims under 35 U.S.C. §§ 102 and 103 to avoid the 8 Appeal2014-005345 Application 13/115,590 inefficiency of piecemeal appellate review. See E'x parte Ionescu, 222 USPQ 537, 540 (Bd. App. 1984) (expressing the view that where a claim is subject to more than one interpretation, one of which would render the claims unpatentable over the prior art, the USPTO should enter simultaneous rejections under 35 U.S.C. § 112, second paragraph, and under 35 U.S.C. § 102 or 103, to avoid piecemeal appellate review). For purposes of reviewing the rejections under 35 U.S.C. §§ 102(b) and 103(a), we interpret the limitation "at least two main coolant supply lines from which the plurality of cabinets receive coolant" in claim 1 as requiring only that the plurality of cabinets receive coolant from the at least two main coolant supply lines in the aggregate (i.e., no particular main coolant supply line need supply coolant to more than one cabinet, but the plurality of cabinets each receive coolant from one or more of the at least two main coolant supply lines) and the limitation "each radiator receiving coolant from different main coolant supply lines" in claim 1 as requiring that each radiator of each cabinet receive coolant from at least one main coolant supply line, with the main coolant supply line from which each radiator receives coolant being a different one of the at least two main coolant supply lines than the main coolant supply line from which any other of the at least two radiators of that cabinet receive coolant, consistent with the disclosure in Appellants' Specification and drawings. Spec., paras. 5-7, 20, 24, 25; Figs. 1, 2. Therefore, we make a determination below as to the patentability under 35 U.S.C. §§ 102 and 103 of claims 1-12 and 14--16 in the interest of judicial economy. Claims 1-3, 5, 12, 14, and 15: 9 Appeal2014-005345 Application 13/115,590 The Examiner finds that Sato discloses every limitation of claim 1, including, in pertinent part, "at least two main coolant supply lines from which the plurality of cabinets receive coolant (main lines composed of 17 and 18 of fig 6B for each radiator lOA, lOB, and lOC)." Final Act. 2-3. Appellants argue that "Sato fails to disclose at least two main coolant supply lines from which the plurality of cabinets receive coolant," as called for in independent claim 1. Appeal Br. 8 (underlining omitted). More specifically, Appellants submit that "Sato does not disclose 'main lines composed of 17 and 18 of fig 6B for each radiator lOA, lOB, and lOC"' and contend that "Sato fails to contemplate such an arrangement." Id. at 8-9 (underlining omitted). Appellants point out that "Sato states, 'The three cooling coils lOA, lOB, and lOC each have a header 19 provided with a cooling-water inlet 17 and a cooling water outlet 18."' Appeal Br. 8 (underlining omitted) (citing Sato, para. 78). Appellants contend that one of ordinary skill in the art "would not consider the cooling water outlet 18 of Sato as a main coolant supply lines [sic] from which the plurality of cabinets receive coolant." Id. As the Examiner points out, Sato discloses each of the plurality of cabinets 10 (one of which is depicted in Figure 6B) comprising at least two (i.e., three) radiators (cooling coils lOA, lOB, lOC), with a main coolant supply line for each radiator. Ans. 8. Moreover, as also pointed out by the Examiner, the Examiner's reading of each main coolant supply line on the portion of the cooling water circuit including both the inlet line to and the outlet line from each radiator is consistent with Appellants' definition of main coolant supply lines as including both a supply line and a return line. Id. at 8-9 (citing Fig. 1); see also claim 2; Spec., para. 18. Notably, the Examiner does not read one main coolant supply line on one inlet 17 and 10 Appeal2014-005345 Application 13/115,590 another main coolant supply line on the corresponding outlet 18. Rather, the Examiner reads one main coolant supply line on one inlet 17 and the corresponding outlet 18 from one cooling coil (for example, cooling coil lOA) and reads a second main coolant supply line on a different inlet 17 and its corresponding outlet 18 from a second cooling coil (for example, cooling coil lOB). 4 Ans. 8-9. Additionally, as each ofSato's cabinets 10 has branch lines 24 and 25 leading to and from each inlet 17 and outlet 18, respectively, of each cooling coil, Sato's plurality of cabinets receive coolant from the plurality of main coolant supply lines, as called for in claim 1. See Sato, Figs. lB, 6B. We discern no error in the Examiner's reading of the claimed "main coolant supply lines" on the inlet and outlet branches connecting Sato's coolant-supply duct 21 and coolant-recovery duct 23 to cabinets 10. For the above reasons, Appellants fail to apprise us of error in the rejection of claim 1. Accordingly, we sustain the rejection of claim 1 and its dependent claims 2, 3, 5, 12, 14, and 15, for which Appellants do not present any separate arguments for patentability and which, thus, fall with claim 1, under 35 U.S.C. § 102(b) as anticipated by Sato. See Appeal Br. 10 ("Their respective dependent claims, which recite yet further distinguishing features, are also patentable over the prior art and require no further discussion herein."). 4 Although the Examiner cites reference numerals 17 and 18 for the inlet lines, Sato describes branch ducts 24 leading to each inlet 17 and branch ducts 25 leading from each outlet 18. Sato, para. 79; Fig. 6B. 11 Appeal2014-005345 Application 13/115,590 Claim 4: Claim 4 requires that "the coolers include an air flow barrier configured to prevent air flow to one of the two radiators during a cooling failure at one of the radiators." Appeal Br. 15 (Claims App.). Claim 16 contains a substantially similar limitation. Id. at 1 7. The Examiner relies on Delia to teach an air flow barrier in order to prevent coolant from contacting the electrical components. Final Act. 4--5. According to the Examiner, "Delia teaches a spray shield 200 which is analogous to the air flow barrier of claim 4 (and also 16)"; "[t]he solid shield 200 certainly prevents airflow through the space [in] which the shield is located"; and "[a] solid object preventing airflow in the space in which it is located is inherent because airflow does not occur through a solid medium." Ans. 9--10. Appellants contend that "Delia makes no mention of the upper spray shield 200 preventing air flow to one of the two radiators during a cooling failure at one of the radiators," and "[t]he Examiner's allegation that such air flow blockage is inherent in Delia is completely speculative and is not supported by any evidence." Appeal Br. 11; Reply Br. 5---6 (underlining omitted). Delia's Figure 1 illustrates "an existing rear door air to water heat exchanger and related fluid water supply system," with "[a]ir purging valve 118 for the supply manifold 108, and air-purging valve 120 for the return manifold 110 [to] remove air from the coils ... that may affect the ability of the coils to remove heat from the rear door 100." Delia, para. 6. Moreover, Delia discloses that to address the problem that the air purging valves become a significant liability when they fail . . . [ t ]he upper spray shield 200 is affixed to the existing protective barrier or to the front door housing ... and prevents 12 Appeal2014-005345 Application 13/115,590 water or liquids from entering the inlet airflow during an air purging valve failure. Delia, para. 25. Delia describes that shield 200 "guides the leaks into a drain channel 206 down the side of the front door cover and away from the electronics" (id.), but does not describe preventing air flow to at least one radiator. In light of the above, the Examiner has not articulated an apparent reason, with any rational underpinnings, why, in view of the teachings of Delia regarding an upper spray shield to guide the leaks into a drain channel, a person having ordinary skill in the art would have been prompted to modify Sato by including the upper spray shield of Delia in such a manner that it would prevent air flow to one of the two radiators during a cooling failure at one of the radiators. The Examiner fails to establish by a preponderance of the evidence that Delia's shield inherently prevents air flow to one of the two radiators during a cooling failure at one of the radiators, as required in claims 4 and 16, and, thus, the Examiner;s articulated reasoning in support of the conclusion of obviousness lacks rational underpinnings. Accordingly, we do not sustain the rejection of claims 4 and 16 under 35 U.S.C. § 103(a) as unpatentable over Sato and Delia. Claims 6-11: In contesting the rejections of these claims, Appellants merely rely on the same arguments advanced against the rejection of claim 1. Appeal Br. 12-13. For similar reasons to those discussed above, these arguments fail to apprise us of error in the rejections of claims 6-11. Accordingly, we sustain the rejection of claims 6 and 7 under 35 U.S.C. § 103(a) as unpatentable over Sato and Symonds; the rejection of claim 8 under 35 U.S.C. § 103(a) as 13 Appeal2014-005345 Application 13/115,590 unpatentable over Sato and Novotny; and the rejection of claims 9--11 under 35 U.S.C. § 103(a) as unpatentable over Sato, Symonds, and Novotny. DECISION The Examiner's decision rejecting claims 3 and 15 under 35 U.S.C. § 112, second paragraph, as indefinite is AFFIRMED. The Examiner's decision rejecting claims 1-3, 5, 12, 14, and 15 under 35 U.S.C. § 102(b) as anticipated by Sato is AFFIRMED. The Examiner's decision rejecting claim 13 under 35 U.S.C. § 102(b) as anticipated by Sato is REVERSED. The Examiner's decision rejecting claims 4 and 16 under 35 U.S.C. § 103(a) as unpatentable over Sato and Delia is REVERSED. The Examiner's decision rejecting claims 6 and 7 under 35 U.S.C. § 103(a) as unpatentable over Sato and Symonds is AFFIRMED. The Examiner's decision rejecting claim 8 under 35 U.S.C. § 103(a) as unpatentable over Sato and Novotny is AFFIRMED. The Examiner's decision rejecting claims 9-11 under 35 U.S.C. § 103(a) as unpatentable over Sato, Symonds, and Novotny is AFFIRMED. We enter a NEW GROUND OF REJECTION of claims 1-16 under 35 U.S.C. § 112, second paragraph, pursuant to our authority under 37 C.F.R § 41.50(b ). FINALITY OF DECISION This decision contains a new ground of rejection pursuant to 37 C.F.R. § 41.50(b). 37 C.F.R. § 41.50(b) provides "[a] new ground of 14 Appeal2014-005345 Application 13/115,590 rejection pursuant to this paragraph shall not be considered final for judicial review." 37 C.F.R. § 41.50(b) also provides: When the Board enters such a non-final decision, the appellant, within two months from the date of the decision, must exercise one of the following two options with respect to the new ground of rejection to avoid termination of the appeal as to the rejected claims: (1) Reopen prosecution. Submit an appropriate amendment of the claims so rejected or new Evidence relating to the claims so rejected, or both, and have the matter reconsidered by the Examiner, in which event the prosecution will be remanded to the Examiner. The new ground of rejection is binding upon the examiner unless an amendment or new Evidence not previously of Record is made which, in the opinion of the examiner, overcomes the new ground of rejection designated in the decision. Should the examiner reject the claims, appellant may again appeal to the Board pursuant to this subpart. (2) Request rehearing. Request that the proceeding be reheard under§ 41.52 by the Board upon the same Record. The request for rehearing must address any new ground of rejection and state with particularity the points believed to have been misapprehended or overlooked in entering the new ground of rejection and also state all other grounds upon which rehearing is sought. Further guidance on responding to a new ground of rejection can be found in the Manual of Patent Examining Procedure§ 1214.01. 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)(l )(iv). AFFIRMED-IN-PART; 37 C.F.R. § 41.50(b) 15 Copy with citationCopy as parenthetical citation