Waters Technologies CorporationDownload PDFPatent Trials and Appeals BoardMay 1, 202014359396 - (D) (P.T.A.B. May. 1, 2020) 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. 14/359,396 05/20/2014 Kurt D. Joudrey W-712-US2 (WAT-039US) 9554 14299 7590 05/01/2020 Schmeiser, Olsen & Watts LLP 33 Boston Post Road West Suite 410 Marborough, MA 01752 EXAMINER PEO, KARA M ART UNIT PAPER NUMBER 1777 NOTIFICATION DATE DELIVERY MODE 05/01/2020 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): docketing@iplawusa.com PTOL-90A (Rev. 04/07) UNITED STATES PATENT AND TRADEMARK OFFICE BEFORE THE PATENT TRIAL AND APPEAL BOARD Ex parte KURT D. JOUDREY and MARUTH SOK Appeal 2019-004800 Application 14/359,396 Technology Center 1700 Before LINDA M. GAUDETTE, GRACE KARAFFA OBERMANN, and JULIA HEANEY, Administrative Patent Judges. HEANEY, Administrative Patent Judge. DECISION ON APPEAL STATEMENT OF THE CASE1 Pursuant to 35 U.S.C. § 134(a), Appellant2 appeals from the Examiner’s decision to reject claims 10, 11, 13, 24, and 27. See Final Act. 1. We have jurisdiction under 35 U.S.C. § 6(b). 1 This Decision refers to the Specification filed May 20, 2014 (“Spec.”), Final Office Action dated June 25, 2018 (“Final Act.”), Appeal Brief dated Nov. 30, 2018 (“Appeal Br.”), Corrected Appeal Brief dated Jan. 14, 2019 (“Corrected Appeal Br.”), and Examiner’s Answer dated Apr. 1, 2019 (“Ans.”). 2 We use the word Appellant to refer to “applicant” as defined in 37 C.F.R. § 1.42. Appellant identifies the real party in interest as Waters Technologies Corporation. Appeal Br. 1. Appeal 2019-004800 Application 14/359,396 2 We REVERSE. CLAIMED SUBJECT MATTER The claims are directed to a liquid chromatography system including a selector valve for switching between carbon dioxide-based supercritical fluid chromatography and high- or ultra- performance liquid chromatography. Spec. 1. Claim 10, reproduced below, is illustrative of the claimed subject matter: 10. A chromatography system, comprising: a solvent delivery system comprising: a pumping system including an actuator with an inlet; and a selector valve in fluidic communication with the inlet of the actuator, the selector valve being configured to switch between a first position, in which the selector valve provides a fluidic pathway between the inlet of the actuator and a source of fluid maintained at a first pressure, and a second position, in which the selector valve provides a fluidic pathway between the inlet of the actuator and a source of pressurized fluid maintained at a pressure greater than atmospheric pressure, wherein the chromatography system is a CO2–based chromatography system when the selector valve is in the second position and is a liquid chromatography system when the selector valve is in the first position and the selector valve has a third position wherein both the fluidic pathway between the inlet of the actuator and the source of fluid maintained at the first pressure and the fluidic pathway between the inlet of the actuator and the source of pressurized fluid are blocked. Corrected Appeal Br. (Claims Appendix) (emphases and paragraphing added for readability). Independent claim 24 is similar to claim 10 in regard to Appeal 2019-004800 Application 14/359,396 3 reciting fluidic pathways between the inlet of the actuator and a source of fluid or pressurized CO2. Id. Our decision focuses on the limitations emphasized above. REFERENCES The prior art relied upon by the Examiner is: Name Reference Date Cortes Kochersperger US 5,139,681 US 5,656,034 Aug. 18, 1992 Aug. 12, 1997 REJECTIONS 1. Claims 10 and 11 are rejected under pre–AIA 35 U.S.C. § 103(a) as being unpatentable over Cortes. Final Act. 2. 2. Claims 13, 24, and 27 are rejected under pre–AIA 35 U.S.C. § 103(a) as being unpatentable over the combination of Cortes and Kochersperger. Final Act. 4. OPINION Rejection 1 The Examiner finds that Cortes teaches a chromatography system comprising pump 34 inherently having an actuator and an inlet with selector valves 18, 20, 22, and 24 in fluidic communication with the inlet of the actuator and the pump. Final Act. 2 (citing Cortes Figs. 2–5, 4:46–55, 5:20– 55). The Examiner further finds that Cortes teaches that the selector valve at a first position provides a fluidic pathway between the analyzing system and a source of fluid maintained at a first pressure. Final Act. 2–3 (citing Cortes Fig. 3). The Examiner also finds that Cortes teaches a second position in Appeal 2019-004800 Application 14/359,396 4 which the selector valve provides a fluidic pathway between the inlet of the actuator and a source of pressurized fluid maintained at a pressure greater than the atmospheric pressure in a CO2–based chromatography system. Final Act. 3 (citing Cortes Fig. 5, 4:46–55, 7:29–56, 3:53–68). The Examiner acknowledges that Cortes does not teach that the first position provides a fluidic pathway with the inlet of the actuator. Id. The Examiner, however, finds that Cortes teaches (a) multiple selector valves which are used to control fluid flow, inherently with a pump, from different sources and that (b) the multiple selector valves may be combined into a single valve and can be switched simultaneously. Id. (citing Cortes 4:56–70, 5:1–8, 5:20–42). The Examiner determines that positioning selector valves in conjunction with pumps in order to control desired flow through a chromatography system would have been obvious, in order to direct fluid in the desired direction. Id. Appellant argues that Cortes does not disclose a liquid chromatography system with “a fluidic pathway between the inlet of the actuator and a source of fluid maintained at a first pressure” as recited in claim 10, because if Cortes were interpreted to have such a fluidic pathway, it would be upstream of injector 14 and thus outside the chromatography system. Appeal Br. 6–7. For the same reason, Appellant argues that Cortes does not disclose a chromatography system with “a fluidic pathway between the inlet of the actuator and a source of pressurized fluid maintained at a pressure greater than atmospheric pressure” as recited in claim 10. Id. Appellant’s argument persuasively identifies reversible error. Claim 10 requires that “the selector valve provides a fluidic pathway between the inlet of the actuator and” a source of fluid maintained at a first pressure (in the first position) and a source of pressurized fluid maintained at a pressure Appeal 2019-004800 Application 14/359,396 5 greater than atmospheric pressure (in the second position). Corrected Appeal Br. (Claims Appendix). The Examiner’s finding that the actuator recited in claim 10 corresponds to Cortes’s injector 14 or syringe pump 34 necessitates that the sources of fluid for the respective injector and syringe pump are outside Cortes’s system. In both cases, no part of Cortes’s multiple selector valves is “between” the actuator of the injector or syringe pump and the sources of fluid, and therefore, the selector valve does not provide a fluidic pathway “between” the injector or syringe pump and the source of fluid. The Examiner’s argument that “fluidic communication” must be interpreted under the broadest reasonable interpretation (see Ans. 12) does not respond to Appellant’s argument or remedy the error in the rejection, because Appellant’s argument relates to the limitations “fluidic pathway between the inlet of the actuator and a source” of fluid (maintained at a first pressure, or at a pressure greater than atmospheric pressure). Appellant also argues that the rejection should be reversed because the Examiner does not provide a sufficient rationale for why a person of ordinary skill would modify Cortes to create alternative fluidic pathways for a chromatography system configured to alternate between liquid and supercritical CO2 sources, in light of Cortes’s teaching of using analyte output from liquid chromatography as an input to supercritical CO2 chromatography. Appeal Br. 11. We agree with Appellant that the Examiner’s rationale for modifying Cortes is conclusory, and insufficient to support a determination of obviousness. See In re Kahn, 441 F.3d 977, 988 (Fed. Cir. 2006) (“rejections on obviousness grounds cannot be sustained by mere conclusory statements; instead, there must be some articulated reasoning with some rational underpinning to support the legal conclusion of obviousness”). The Appeal 2019-004800 Application 14/359,396 6 stated rationale of “direct[ing] fluid in the desired direction” through a chromatography system (Ans. 3) does not explain why a person of ordinary skill would combine Cortes’s multiple valves into a switchable selector valve as recited in claim 10, in view of Cortes’s teaching of using liquid chromatography and supercritical CO2 in tandem on the same analyte. Nor does the Examiner’s rationale explain how the proposed modified fluidic system of Cortes would “direct fluid in the desired direction.” Accordingly, we reverse the rejection of claim 10. We reverse the rejection of dependent claim 11 for the same reasons. Because we find reversible error, we need not reach Appellant’s additional arguments for reversal. Rejection 2 With regard to the limitations of claim 24 relating to fluidic pathways between the inlet of the actuator and a source of fluid or pressurized CO2, that are similar to the corresponding limitations in claim 10, the Examiner’s rejection is based on the same findings as to Cortes. Ans. 6–7. Further, the Examiner acknowledges that Cortes does not teach a selector valve comprising (a) a first position producing fluidic pathways between the first port and the third port and between the pressurized CO2 source and the first inlet of the first primary actuator and blocking the second port; (b) a second position producing fluidic pathways between the second port and the third port and between the solvent reservoir and the first inlet of the first primary actuator and blocking the first port; (c) a third position wherein the fluidic pathways between the first port and the third port, between the pressurized CO2 source and the first inlet of the first primary actuator, between the second port and the third port, and between the solvent reservoir and the first inlet of the first primary actuator are blocked. Id. at 9. The Examiner Appeal 2019-004800 Application 14/359,396 7 determines, however, that rearranging Cortes’s ports, CO2 source, actuators, and solvent reservoir would have been obvious in order to control desired fluid flows through the system. Id. Appellant’s arguments for reversal of Rejection 2, with regard to the limitations that are similar to those of claim 10, are persuasive for the same reasons discussed above. Further, the Examiner does not rely upon Kochersperger for any disclosure that remedies the deficiencies in Rejection 1. Accordingly, we reverse the rejection of claim 24 and dependent claims 13 and 27 for the same reasons discussed above. Because we find reversible error, we need not reach Appellant’s additional arguments for reversal. CONCLUSION The Examiner’s rejections are REVERSED. DECISION SUMMARY Claims Rejected 35 U.S.C. § Reference(s)/Basis Affirmed Reversed 10, 11 103(a) Cortes 10, 11 13, 24, 27 103(a) Cortes, Kochersperger 13, 24, 27 Overall Outcome: 10, 11, 13, 24, 27 REVERSED Copy with citationCopy as parenthetical citation