Ex Parte ROMMELDownload PDFPatent Trials and Appeals BoardApr 4, 201914300443 - (D) (P.T.A.B. Apr. 4, 2019) Copy Citation UNITED STA TES p A TENT AND TRADEMARK OFFICE APPLICATION NO. FILING DATE FIRST NAMED INVENTOR 14/300,443 06/10/2014 Bjorn Eino ROMMEL 11171 7590 04/08/2019 Patent Portfolio Builders, PLLC P.O. Box 7999 Fredericksburg, VA 22404 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. 0336-299-2/100490 9857 EXAMINER LOBO,IANJ ART UNIT PAPER NUMBER 3645 NOTIFICATION DATE DELIVERY MODE 04/08/2019 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): Mailroom@ppblaw.com eofficeaction@appcoll.com PTOL-90A (Rev. 04/07) UNITED STATES PATENT AND TRADEMARK OFFICE BEFORE THE PATENT TRIAL AND APPEAL BOARD Ex parte BJORN EINO ROMMEL Appeal2018-001057 Application 14/300,443 1 Technology Center 3600 Before BRUCE T. WIEDER, AMEE A. SHAH, and ROBERT J. SILVERMAN, Administrative Patent Judges. WIEDER, Administrative Patent Judge. DECISION ON APPEAL This is a decision on appeal under 35 U.S.C. § 134 from the Examiner's final rejection of claims 1-21. We have jurisdiction under 35 U.S.C. § 6(b). We REVERSE. 1 According to Appellant, the real party in interest is CGG SERVICES SA. (Appeal Br. 2.) Appeal2018-001057 Application 14/300,443 CLAIMED SUBJECT MATTER Appellant's invention "generally relate[s] to methods and systems and, more particularly, to mechanisms and techniques for deghosting seismic data." (Spec. ,r 1.) Claims 1, 17, 18, and 21 are the independent claims on appeal. Claim 1 is illustrative. It recites ( emphasis added): 1. A method for seismic data acquisition and processing, the method comprising: generating a first seismic wave at a source position (Xs, Ys, Zs); recording the first seismic wave, after undertaking a seismic event, at a first receiver position (XI, YI, Zl), to obtain a first record; generating a second seismic wave substantially at the same source position (Xs, Y s, Zs); recording the second seismic wave, after undertaking the seismic event, at a second receiver position (X2, Y2, Z2), to obtain a second record; and combining the first and second records to form a substantially deghosted seismic record, wherein the first receiver position and the source position are characterized by a first source-receiver offset and a first common mid-point, the second receiver position and the source position are characterized by a second source-receiver offset and a second common mid-point, and the first source-receiver offset is substantially the same as the second source-receiver offset, the first common mid-point is substantially the same as the second common mid-point, and a first depth (Z 1) of the first receiver position is different from a second depth (Z2) of the second receiver position. 2 Appeal2018-001057 Application 14/300,443 REJECTI0N2 Claims 1-21 are rejected under 35 U.S.C. § 103 as being unpatentable over Hegna (US 2012/0033526 Al, pub. Feb. 9, 2012) and Moldoveanu (US 2013/0107663 Al, pub. May 2, 2013). ANALYSIS Obviousness is a legal conclusion involving a determination of four underlying facts. Under § 103, the scope and content of the prior art are to be determined; differences between the prior art and the claims at issue are to be ascertained; and the level of ordinary skill in the pertinent art resolved. Against this background, the obviousness or nonobviousness of the subject matter is determined. Such secondary considerations as commercial success, long felt but unsolved needs, failure of others, etc., might be utilized to give light to the circumstances surrounding the origin of the subject matter sought to be patented. KSR Int'! Co. v. Teleflex Inc., 550 U.S. 398,406 (2007) (quoting Graham v. John Deere Co. of Kansas City, 383 U.S. 1, 17-18 (1966)). With regard to the scope and content of the prior art, the Examiner finds that [ f]rom Fig. 1 of Hegna et al, it is seen that the sources ( 14, 16), aligned vertically at different depths, will EACH have a first source-receiver offset (distance) substantially the same as a second source-receiver offset and a first common mid-point (reflection point halfway between a source and a receiver) being substantially the same as a second common mid-point. 2 The rejection of claims 1-21 under 35 U.S.C. § 112(a) was withdrawn. (Advisory Action mailed April 12, 2017.) 3 Appeal2018-001057 Application 14/300,443 (Answer 4.) The Examiner also finds that "[a]s seen in Fig. 1 of Hegna, the first common midpoint is 'equal to' or 'substantially the same as' the second midpoint." (Final Action 3.) Appellant argues that "Hegna does not present any detail about the offsets of specific source positions and receiver positions, or common mid- points associated with these offsets." (Appeal Br. 10.) Appellant also argues that "there is no disclosure in [Moldoveanu that] ... the first common mid-point is substantially the same as the second common mid-point." (Id. at 11.) To aid us in resolving this matter, we will construe the claim term "common mid-point." Appellant's Specification relates particularly to "[ m ]arine seismic data acquisition and processing [to] generate a profile (image) of the geophysical structure (subsurface) under the seafloor." (Spec. ,r 2.) In relevant part, the Specification discloses: Ray path 320 leaves first source 304, travels toward ocean bottom 330 (see Figure 4 that shows system 300 in a lateral view), where it gets reflected, and then travels toward receiver 314 where it gets recorded. A line 332 that is substantially perpendicular to the water surface and also intersects the point where the ray path 320 is reflected is illustrated in Figures 4 and 5. A point where line 332 intersects the water surface 334 is called common midpoint (CMP). The CMP shall herein mean the location on the surface, halfway between the location of the seismic source and the receiver. In a typical seismic acquisition, a common midpoint is typically shared by numerous combinations of locations of a seismic source and of a seismic sensor. (Id. ,r 38, emphasis added.) 4 Appeal2018-001057 Application 14/300,443 Appellant's Figure 4, illustrating the position of ray path 320 and common mid-point 332, is reproduced below. Figure 4 rx 302 y 334 CMP 30(; 3tB 330 ' . . . ' ~·,:::::::,-;:_'7/--::-~~~~.~~.,:..._.,;;_:.~.,.:_...,~'--'--r""""7'~--/--'--_ - /: j . .--- - ,,,.. .· _,.. ... ; .. Figure 4 is a side view of an embodiment of a seismic survey system. (Spec. ,r 15.) Figure 4 shows the common mid-point at a particular location on the surface defined by the ray path associated with a particular seismic wave generated at a particular source position and recorded at a particular receiver position. Appellant's Specification further illustrates the common mid-point in Figure 7, reproduced below. 5 Appeal2018-001057 Application 14/300,443 Figure 7 700 724 722 (720 706 710 \.734 ~732 ~ '----130 702 Figure 7 is a schematic diagram of an embodiment of another seismic survey system. (Spec. ,r 18.) As shown in Appellant's Figure 7, four seismic sources are used to increase seismic survey efficiency. The seismic survey system 700 includes a vessel 702 towing four seismic sources 704, 706, 708 and 710. A receiver 722 on streamer 720 is illustrated as being connected by a ray path 723 to first source 704, and a receiver 732 on streamer 730 is illustrated as being connected by ray path 733 to third source 708. The CMP of source 704 and receiver 722 is CMPJ and the CMP of source 708 and receiver 732 is CMP2. As the vessel 702 advances by distance D, source 706 and receiver 724 will have 6 Appeal2018-001057 Application 14/300,443 CMP 1 and source 710 and receiver 734 will have CMP2. Thus, these source-receiver pairs share the same offset and CMP while having different sensor depths, i.e., sensor 724 is assumed to have a different depth than sensor 722, and sensor 734 is assumed to have a different depth than sensor 732. (Id. ,r 48, emphasis added.) Claim 1 recites "generating a first seismic wave at a source position (Xs, Y s, Zs)," "recording the first seismic wave ... at a first receiver position (XI, YI, Zl)," "generating a second seismic wave substantially at the same source position (Xs, Y s, Zs)," "recording the second seismic wave ... at a second receiver position (X2, Y2, Z2)," and that "the first receiver position and the source position are characterized by ... a first common mid-point, the second receiver position and the source position are characterized by ... a second common mid-point." In view of the above, and applying a broadest reasonable interpretation, we construe the claim term "common mid-point" to include a particular "location on the surface" defined by a ray path associated with a particular seismic wave generated at a particular source position ( e.g., Xs, Ys, Zs) and recorded at a particular receiver position (e.g., XI, YI, Zl). We now tum to the cited art. Figure 1 of Hegna, reproduced below, shows an acquisition system 12 with seismic energy sources 14 and 16. (See Hegna ,r 31 and Fig. 1.) 7 Appeal2018-001057 Application 14/300,443 FJG. 1 Figure 1 is a side view showing an arrangement of seismic energy sources and receivers acquiring seismic data. (Hegna ,r 18.) As shown in Figure 1 of Hegna, energy from the first source 14 travels both upwardly 24 and downwardly 22. The upward energy is reflected downwardly from the water surface. (See Hegna ,r 31 and Fig. 1.) The reflection from the downward energy 22 is shown, after being reflected from, e.g., the water bottom, intersecting a first receiver 20. The reflection from the upward energy 24 is shown, after being reflected downwardly from the water surface and again from, e.g., the water bottom, intersecting a second receiver 20. The two reflections from the water bottom shown, have different common mid-points. 8 Appeal2018-001057 Application 14/300,443 Hegna further discloses that the system 12 is configured to actuate the second seismic energy source, e.g., source 16, at the end of a second time relative to the start of the seismic data recording, or, alternatively, after a selected time before or after the actuation of the first source 14. Energy travelling outwardly from the second source 16 moves along similar paths as the energy from the first source 14. In the present invention, the above described time delays are selected so that energy from both sources is detected by the receivers 20 in each data recording ( called a shot record). It is expected that the time of actuating the sources at different depths may vary between shot records in a random, semi-random, or systematic manner. (Id. ,r 31, emphasis added.) In other words, in the above description of Figure 1, Hegna does not disclose that the release of energy from second source 16 is to be timed such that the source would be located so as to result in the common mid-points resulting from the release of energy from the first source being "substantially the same" as either of the common mid-points resulting from the release of energy from the second source, as recited in claim 1. "' [T]here must be some articulated reasoning with some rational underpinning to support the legal conclusion of obviousness.'" KSR Int 'l Co. v. Teleflex Inc., 550 U.S. 398,418 (2007) (citing In re Kahn, 441 F.3d 977, 988 (Fed. Cir. 2006)). Here, the Examiner does not sufficiently explain why, in view of Hegna, it would have been obvious to have "the first common mid-point [be] substantially the same as the second common mid- point," as recited in claim 1. Nor does the Examiner explain why Moldoveanu would cure this deficiency. Therefore, we will reverse the rejection of claim 1, and dependent claims 2-16 under § 103. Independent claims 17, 18, and 21 contain similar 9 Appeal2018-001057 Application 14/300,443 language, and the Examiner's rejection of claims 17, 18, and 21 relies on similar reasoning. Therefore, for similar reasons we will reverse the rejection of claims 1 7, 18, and 21, and dependent claim 19 under § 103. DECISION The Examiner's rejection of claims 1-21 under 35 U.S.C. § 103 is reversed. REVERSED 10 Copy with citationCopy as parenthetical citation