PURAC BIOCHEM B.V.Download PDFPatent Trials and Appeals BoardJul 21, 202014353443 - (D) (P.T.A.B. Jul. 21, 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. 14/353,443 04/22/2014 Johan Pieter Marinus Sanders 161277 7691 27049 7590 07/21/2020 OLIFF PLC P.O. BOX 320850 ALEXANDRIA, VA 22320-4850 EXAMINER AFREMOVA, VERA ART UNIT PAPER NUMBER 1653 NOTIFICATION DATE DELIVERY MODE 07/21/2020 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): OfficeAction27049@oliff.com jarmstrong@oliff.com PTOL-90A (Rev. 04/07) UNITED STATES PATENT AND TRADEMARK OFFICE ____________ BEFORE THE PATENT TRIAL AND APPEAL BOARD ____________ Ex parte JOHN PIETER MARINUS SANDERS, and ROBERT REURD CHRISTOPHOR BAKKER ____________ Appeal 2019-004868 Application 14/353,4431 Technology Center 1600 ____________ Before JEFFREY N. FREDMAN, JOHN G. NEW, and DAVID COTTA, Administrative Patent Judges. COTTA, Administrative Patent Judge. DECISION ON APPEAL This is an appeal under 35 U.S.C. § 134 involving claims to a process for the conversion of lignocellulose into an organic acid. The Examiner rejected the claims on appeal as obvious under 35 U.S.C. § 103(a). We affirm and enter a new ground of rejection pursuant to our authority under 37 C.F.R. § 41.50(b). 1 We use the word “Appellant” to refer to “applicant” as defined in 37 C.F.R. § 1.42. According to Appellant, the real party in interest is Purac Biochem B.V. Appeal Brief 1 (“App. Br.”). Appeal 2019-004868 Application 14/353,443 2 STATEMENT OF THE CASE The Specification discloses that it was “known to produce organic acids, such as for example lactic acid, succinic acid, or acetic acid by fermentation of biomass that comprises lignocellulose.” Spec. 1. In one known process, “lignocellulosic biomass is pretreated with an alkaline agent and then subjected to simultaneous saccharification and fermentation in a fermentor to produce lactic acid or a salt thereof.” Id. In this process, however, a “relatively low concentration” of the “fermentation product . . . is recovered” and, as a consequence, “multiple distillation steps would be needed in order to obtain an ethanol concentration of 96%.” Id. In addition, this process produces a “relatively low yield of the fermentation product” and requires “a relatively severe alkaline pretreatment step, a prehydrolysis step, and/or a relatively high amount of hydrolytic enzyme” in order to “obtain sufficient saccharification of the lignocellulose.” Id. The Specification discloses: It has now been found that if the production of organic acid from lignocellulose material by alkaline pretreatment followed by fermentation of the alkaline pretreated material in a fermentation zone is carried out such that liquid effluent of the fermentation zone is recycled to the alkaline pretreatment step and/or to the fermentation zone, and the organic acid is recovered as magnesium or calcium salt from the solid effluent of the fermentation zone, the organic acid can be obtained in a high concentration, with a high yield and at a high purity. Id. Claims 1–19 are on appeal. Claim 1 is representative and reads as follows: 1. A process for the conversion of lignocellulose into an organic acid, the process comprising the following steps: Appeal 2019-004868 Application 14/353,443 3 a) pretreating a feed comprising lignocellulose material with an alkaline agent comprising a divalent cation, wherein the divalent cation is a calcium or magnesium cation, in the presence of water at a pretreatment temperature, to obtain an aqueous slurry of alkaline pretreated lignocellulose material; b) supplying at least part of the slurry of alkaline pretreated lignocellulose material to a fermentation zone and subjecting the pretreated lignocellulose material, in the fermentation zone in the presence of a hydrolytic enzyme and a micro-organism that is able to convert saccharides into an organic acid, to enzymatic hydrolysis and fermentation to obtain a fermentation broth comprising insoluble lignocellulose, precipitated and dissolved salt of the organic acid with the divalent cation, and enzyme; c) discharging fermentation broth obtained in step (b) from the fermentation zone; d) separating the discharged fermentation broth into i) a liquid phase comprising the dissolved salt of the organic acid and at least one of said organic acid, soluble fermentable saccharides, and said hydrolytic enzyme, and ii) a solid phase comprising insoluble lignocellulose and the precipitated salt of the organic acid; and e) recycling at least 50 vol.% of the liquid phase to said alkaline pretreatment step a) and/or to the fermentation zone. App. Br. A-1 (Claims App.). Appeal 2019-004868 Application 14/353,443 4 The claims stand rejected as follows: I. Claims 1–4, and 14–19 were rejected under 35 U.S.C. § 103(a) as obvious over the combination of Bakker,2 Eyal,3 Otto,4 Scott,5 Van Krieken,6 and Eyal II.7 II. Claims 1–10 and 14–19 were rejected under 35 U.S.C. § 103(a) as obvious over the combination of Bakker, Eyal, Otto, Scott, Van Krieken, Eyal II, and Mass.8 III. Claims 1–19 were rejected under 35 U.S.C. § 103 as obvious over the combination of Bakker, Eyal, Otto, Scott, Van Krieken, Eyal II, Mass, and Mass II.9 REJECTION I Appellant argues claims 1–4 and 14–16 together. We designate claim 1 as representative. In finding claim 1 obvious over the combination of Bakker, Eyal, Otto, Scott, Van Krieken, and Eyal II, the Examiner found that Bakker disclosed all of the steps of claim 1 with the exception of claim step (e), which requires “recycling at least 50 vol.% of the liquid phase to said 2 Bakker et al., WO 2009/025547 A1, published Feb. 26, 2009 (“Bakker”). 3 Eyal et al., WO 98/37050 A1, published Aug. 27, 1998 (“Eyal”). 4 Otto et al., WO 2004/063382 A2, published July 29, 2004 (“Otto”). 5 Scott et al., US Patent No. 5,508,183, issued Apr. 16, 1996 (“Scott”). 6 Van Krieken et al., US Patent No. 7,705,180 B2, issued Apr. 27, 2010 (“Van Krieken”). 7 Eyal et al., US Patent No. 7,144,977 B2, issued Dec. 5, 2006 (“Eyal II”). 8 R. Maas et al., Lactic Acid Production from Xylos by the Fungus Rhizopus Oryzae, 72 Appl. Microbiol Biotechnol 861–868 (2006) (“Maas”). 9 R. Maas et al., Pilot-Scale Conversion of Lime-Treated Wheat Straw into Bioethanol: Quality Assessment of Bioethanol and Valorization of Side Streams by Anaerobic Digestion and Combustion, Biotechnology for Biofuels 1:14 (2008) (“Maas II”). Appeal 2019-004868 Application 14/353,443 5 alkaline pretreatment step a) and/or to the fermentation zone.” Ans. 3–5. The Examiner then found that the step of recycling products of fermentation process streams was known, as evidenced by Otto, Scott, Van Krieken, and Eyal, each of which discloses recycling products of a fermentation process stream back into the stream. The Examiner concluded that it would have been obvious to add a recycling step to the fermentation process disclosed in Bakker, reasoning that the ordinary artisan would have recognized that “both the pretreatment stage and fermentation stages could benefit from recycl[ing] of residual streams of materials” to improve cost effectiveness.” Id. at 6–7. With respect to the quantity of material recited as recycled in claim 1 (“at least 50% vol.””), the Examiner found that the “amounts of liquid phase streams to be recycled back in to the process depend on [the] particular materials and on [the] available equipment used in the process.” Id. at 16. The Examiner thus concluded that it would have been obvious to recycle the claimed amount of liquid phase depending on the design of fermentation process. Id. We adopt the Examiner’s findings of fact and reasoning regarding the scope and content of the prior art and agree that claims 1–4, and 14–19 would have been obvious over Bakker, Eyal, Otto, Scott, Van Krieken, Eyal II, and Mass. We address Appellant’s arguments below. Claims 1–4 and 14–16 Appellant argues that Bakker discloses that its method “may or may not include a step of recovery of the fermentation products.” App. Br. 5. Appellant further argues that Bakker does not provide any “specific examples of suitable purification and concentration methods” and thus Appeal 2019-004868 Application 14/353,443 6 Bakker “does not . . . provide an enabling disclosure of the ‘optional’ recovery step.” Id. at 6. We are not persuaded. As an initial matter, prior art cited by an Examiner is presumed to be enabled. In re Sasse, 629 F.2d 675, 681 (CCPA 1980); see also In re Antor Media Corp., 689 F.3d 1282, 1288 (Fed. Cir. 2012). Once such a reference is found, the burden is on the Appellant to provide evidence rebutting the presumption. Id. Here, Appellant does not provide persuasive evidence rebutting Bakker’s disclosure of recovery of the fermentation product. Bakker 2. In addition to the presumption that Bakker’s disclosure of “[o]ptional[] recovery of the fermentation product” (Bakker, 2) is enabled, Bakker defines recovery as “any method or combination of methods in which the fermentation product of the invention is obtained from the SSF [simultaneous saccharification and fermentation] mixture . . . in purer and/or more concentrated form” (Id. at 14). And Otto teaches that recovery of a fermentation product from the fermentation broth is conventional. Otto 7 (“lactic acid and/or lactate may be separated from the fermentation broth by any of the many conventional techniques known to separate lactic acid and/or lactate from aqueous solutions.”). Accordingly, the evidence of record supports that the ordinary artisan would have been able to recover Bakker’s fermentation product by conventional methods without undue experimentation. Appellant argues that Bakker does not disclose the step of “discharging the fermentation broth” as recited in claim step “c.” App. Br. 6. Appellant contends that the term “discharge” means “permitting a material to flow from or otherwise exit a locus from which it has been confined.” Id. Appellant acknowledges that Example 5 of Bakker includes Appeal 2019-004868 Application 14/353,443 7 a step in which the fermentation broth is “sampled and analyzed for monomeric, oligomeric and polymeric sugars, and for lactic acid,” but contends that this does not meet the requirement that the fermentation broth be “discharge[d]” as recited in step (c) of claim 1. Id. We are not persuaded. Bakker discloses that samples from the fermentation process were “withdrawn for dry matter, substrate and (by)-product analysis,” and then “centrifuged.” Bakker 19. This corresponds to the claim steps reciting “discharging the fermentation broth” and “separating the discharged fermentation broth.” See, Spec. 7 (teaching that fermentation broth is discharged and then separated by “suitable means known in the art, such as centrifugation, filtration or sedimentation”). Appellant does not explain why this does not meet its proposed definition of “permitting a material to . . . otherwise exit a locus from which it has been confined.” App. Br. 6 (asserting, without explanation, that “[t]he extraction of . . . samples is not equivalent to the discharge of fermentation broth required by present Claim 1”). Accordingly, we agree with the Examiner that “the disclosed withdrawal of a sample of saccharified materials in [] Bakker’s method is clearly a flow of materials from one confinement locus to the other locus within the meaning of [the] dictionary [definition provided by Appellant], as argued and as claimed.” Ans. 12. Appellant argues that the cited art does not disclose the step of separating the fermentation broth into dissolved and precipitated salts. App. Br. 7. More particularly, Appellant contends that the “alkaline earth metal lactate of Bakker could indeed be wholly in a dissolved state” and that none of the cited art discloses obtaining “both a precipitated and dissolved salt of Appeal 2019-004868 Application 14/353,443 8 the organic acid . . . nor do they deliberately separate a fermentation broth into a liquid phase and a solid phase.” Id. We do not find this argument persuasive. Bakker discloses centrifuging the fermentation broth (Bakker 19) and Otto discloses that lactic acid and/or lactate may be separated from the fermentation broth by “conventional techniques” including “centrifuging, filtration, flocculation, floatation or membrane filtration” (Otto 7). The Examiner finds that Bakker’s disclosure of centrifuging involves separating the fermentation broth into a “solid phase” and a “liquid phase.” Ans. 13; see also, id. at 5 (citing Eyal as support that calcium lactate in a fermentation broth may be present in solid and dissolved form). Appellant does not explain how lactic acid could be separated from the fermentation broth by centrifugation (much less by filtration, flocculation, or floatation) other than as a precipitated salt – i.e. as a “solid phase.” Indeed, Appellant describes the above quoted portion of Otto as disclosing “solid-liquid separation.” App. Br. 8. Accordingly, we are not persuaded by Appellant’s argument that the cited art does not disclose the step of separating the fermentation broth into dissolved and precipitated salts. Appellant argues that Bakker does not disclose the claimed recycling step. App. Br. 8. Appellant acknowledges that Otto discloses that after separation of lactic acid from the fermentation broth, “[t]he various residual streams may be recycled, optionally after treatment, to the fermentation vessel or to any previously performed purification step” (Otto 7), but argues that this does not disclose the claimed recycling step because “the meaning of various residual streams is not defined” (App. Br. 8). We are not persuaded. Appeal 2019-004868 Application 14/353,443 9 Although Otto does not expressly define the phase “various residual streams” its meaning is clear in context. Otto teaches that “various residual streams” are obtained after lactic acid has been separated from the fermentation broth using “conventional techniques.” Otto 7. Accordingly, we agree with the Examiner that the phrase “various residual streams,” as used in the above quoted portion of Otto, has the same meaning does the term “liquid phase” in claim 1. Ans. 13. Appellant argues that Otto does not disclose “[r]ecycling to a pre- treatment step.” App. Br. 8. Appellant further argues that Otto does not disclose the recycling step because “one of ordinary skill in the art is not explicitly directed to recycle a stream to a fermentation vessel in which hydrolytic enzymes are present together with the Bacillus species.” Id. at 8– 9 (emphasis omitted). We are not persuaded because Otto discloses that the various residual streams – i.e. the liquid phase – “may be recycled . . . to any previously performed purification step.” Otto 7. We agree with the Examiner that “any previously performed purification step” includes “both alkaline pretreatment step and enzymatic saccharification and lactic acid fermentation step.” Ans. 5; see also, Otto 5 (describing purification steps). Appellant argues that the recycling steps disclosed in Scott, Van Krieken, and Eyal do not correspond to the claimed recycling step. App. Br. 9–11. We are not persuaded because Otto discloses recycling to “any previously performed purification step.” Otto 7. In addition, as the Examiner explains, each of Scott, Van Krieken and Eyal broadly teach the “beneficial recycling of a ‘liquid phase’” in a fermentation process. Ans. 14–15. These references thus support the Examiner’s position that Appeal 2019-004868 Application 14/353,443 10 “recycling of process streams have been known and practiced in the prior art.” Ans. 5. Appellant argues: While it may be generally true that recycling of some liquids and solids is known in processes of treatment of lignocellulosic material, the process of the present invention does not simply include a generic recycling step -- rather, it includes the selective or purposive recycling of a liquid phase sourced from step d) thereof, providing the advantageous effects documented at page 2, line 19-25 of the specification [r]ecycling to a pre- treatment step is not taught here. Id. There is no suggestion in any of the applied prior art that a liquid phase containing the salt of the desired organic acid might be a candidate for liquid phase recycling. App. Br. 11. We are not persuaded because as discussed above, we agree with the Examiner that the “various residual streams” that Otto teaches may be recycled to “any previously performed purification step” correspond to the claimed “liquid phase.” Ans. 13. With respect to the content of the liquid phase, for the reasons discussed above, the art supports that the liquid phase – prior to separation – would include both dissolved and precipitated salts. Appellant concedes that it “may not be so unusual to recycle or re- process the mother liquor (unpurified product stream)” within the solidification portion of the fermentation process, but argues that it would not have been obvious to recycle to the “operations of pre-treatment, hydrolysis and fermentation.” Id. at 12. Appellant argues that reheating unpurified product streams “promotes concerns based on the thermal degradation of constituent compounds in those streams and the concomitant production of inhibitors” whose presence in the fermentation “may be Appeal 2019-004868 Application 14/353,443 11 considered particularly problematic.” Id. Appellant contends that “[r]ather than consider recycling of unpurified streams to the pre-treatment step and/or to the fermentation zone,” the ordinary artisan would “simply try to recover more product by optimizing the recovery of the fermentation product by evaporation, optionally in combination with liquid-liquid extraction.” Id. We are not persuaded because Appellant’s arguments are not supported by citation to evidence. See Johnston v. IVAC Corp., 885 F.2d 1574, 1581 (Fed. Cir. 1989) (“Attorneys’ argument is no substitute for evidence”); In re Pearson, 494 F.2d 1399, 1405 (CCPA 1974). Moreover, as discussed above, Otto discloses recycling back to “any previously performed purification step.” Otto 7. Appellant argues that the Examiner did not establish that it would have been obvious to recycle “at least 50 vol.% of the liquid phase” as recited in claim 1. App. Br. 11–12. We are not persuaded because, as the Examiner explains, the claim recites “several components of a generic nature (water, salts, sugars and enzymes) in unidentified amounts,” and thus “it would be reasonabl[e] to conclude that the amounts of liquid phase streams to be recycled back in the process depend on [the] particular materials and on available equipment used in the process.” Ans. 15–16. We agree with the Examiner that recycling “at least 50 vol.% of the liquid phase” would have been within the skill of the ordinary artisan and that it would have been obvious to the ordinary artisan to recycle the claimed amount, with a reasonable expectation of success, as dictated by the process design. Id. Accordingly, we affirm the Examiner’s rejection of claim 1. Because they were not argued separately, claims 2–4, and 14–16 fall with claim 1. Appeal 2019-004868 Application 14/353,443 12 Claims 17–19 Claim 17 depends from claim 1 and further requires “recycling at least part of the liquid phase to said alkaline pre-treatment step a) and at least part of the liquid phase to the fermentation zone.” Claims 18 and 19 depend from claim 17 and further specify the amount of liquid phase recycled to step a). Appellant argues that claims 17–19 are separately patentable because the claimed “dual mode” recycling – i.e., recycling to both the pre- treatment step and to the fermentation zone – is “not explicitly taught or suggested by any of the applied prior art.” App. Br. 13–14. We are not persuaded because, as discussed above, Otto discloses recycling to “any previously performed purification step,” which encompasses recycling to both pre-treatment and fermentation stages. Accordingly, we affirm the Examiner’s rejection of claims 17–19. REJECTION II In rejecting claims 1–10 and 14–19 as obvious over the combination of Bakker, Eyal, Otto, Scott, Van Krieken, Eyal II, and Mass, the Examiner applied the cited art as discussed above, adding Mass to address the limitations of claims 5–8. Appellant argues that this rejection should be reversed because Mass “does not remedy the above-discussed deficiencies in [Rejection I].” App. Br. 15. Because we do not find any deficiencies in the Rejection I, we affirm the Examiner’s rejection of claims 1–10 and 14–19 as obvious over the combination of Bakker, Eyal, Otto, Scott, Van Krieken, Eyal II, and Mass. Appeal 2019-004868 Application 14/353,443 13 REJECTION III In rejecting claims 1–19 as obvious over the combination of Bakker, Eyal, Otto, Scott, Van Krieken, Eyal II, Mass, and Mass II, the Examiner applied the cited art as discussed above, adding Mass II to address the limitations of claims 11–13. Claim 11 depends indirectly from claim 1 and further requires “feeding the extracted solid phase to a power generator to generate electricity and waste heat.” Claim 12 depends from claim 11 and further recites “the feed to said power generator comprises paper comprising calcium carbonate and wherein calcium oxide is formed in the power generator and wherein calcium oxide formed in the power generator is recycled to alkaline pretreatment step a) as alkaline agent.” Claim 13 depends from claim 11 and further recites that “the waste heat generated is used to achieve the pretreatment temperature in step a).” The Examiner found that Mass II teaches “that final solid fractions resulting from microbial fermentation of lime-treated straw can be used as fuel for thermal conversion yielding thermal energy for heat and power generation.” Ans. 10. From this, the Examiner concluded that it would have been obvious “to add steps of using solid phase materials and/or solid waste materials resulting from microbial fermentation of lime-treated straw for power generation to the method of [Bakker] with a reasonable expectation of success.” Id. at 10. The Examiner further concluded that it would have been obvious to “use the generated power and/or heat for suitable applications, including thermal treatment of lignocellulose biomass rather than waste.” Id. at 16–17. Appeal 2019-004868 Application 14/353,443 14 We agree with the Examiner that, based on the teachings of Mass II, it would have been obvious to use the solid phase materials from Bakker’s process to generate heat and/or power for suitable applications, including pre-treatment of the lignocellulose. Ans. 10–11, 16–17. Accordingly, we affirm the Examiner’s rejection of claim 11, which Appellant does not argue separately. App. Br. 16. Appellant argues that claims 12 and 13 are independently patentable because Mass II does not disclose combustion of paper, and “[t]he pre- treatment of wheat straw with lime in Mass [II] . . . followed by washing and de-watering . . . does not necessarily infer the presence of calcium carbonate in that solid fraction which is obtained after simultaneous SSF and which is to be combusted.” App. Br. 16. Appellant further argues that Mass II does not disclose “the formation of calcium oxide in its power generator” and “the recycling of either generated calcium oxide or heat from its power generator to the step of pre-treatment.” Id. We are not persuaded. Bakker discloses the use of paper in its process. Bakker 3 (“the lignocellulosic biomass is selected from the group consisting of, but not limited to: grass, wood, bagasse, straw, paper, plant material (straw, hay, etc.), and combinations thereof.”). We find that a person of ordinary skill in the art would have at once envisaged that Bakker’s disclosure of the use of paper includes paper containing calcium carbonate because calcium carbonate is commonly used as a filler or pigment for paper. Laurila- Lumme10 1:34–35 (“Calcium carbonate CaCO3 is commonly used in paper making as a filler or pigment because it has a high brightness and it is the 10 US Patent No. 6,623,599 B1, issued Sept. 23, 2003 (“Laurila-Lumme”). Appeal 2019-004868 Application 14/353,443 15 whitest filler in the price range in question.”); Pöykiö11 2 (“Precipitated calcium carbonate (CaCO3) is used in large amounts in the pulp and paper industry as a paper filler and in coatings to provide opacity, high brightness and improved printability due to its good ink receptivity. In addition, it improves paper bulk, light scattering and fibre coverage.”). Alternatively, it would have been obvious to use paper containing calcium carbonate as a lingocellulosic biomass because Bakker teaches the use of paper in its process and does not distinguish between types of paper. Bakker 3. The Specification explains that when paper containing calcium carbonate is used, calcium oxide would inherently be formed in the power generator: In case paper comprising calcium carbonate is used as feed, the extracted solid phase will comprise calcium carbonate. In case such extracted solid phase comprising calcium carbonate is fed to the power generator, calcium oxide will be formed in the power generator. Spec. 11. Accordingly, we affirm the Examiner’s rejection of claims 12 and 13 as obvious over the cited art. However, because we rely on evidence not expressly cited by the Examiner, we designate the affirmance as a new ground of rejection. 11 Pöykiö, Calcium carbonate waste from an integrated pulp and paper mill as a potential liming agent, Environ. Chem. Lett. 6, 47–51 (2008). Appeal 2019-004868 Application 14/353,443 16 CONCLUSION In summary: Claims Rejected 35 U.S.C. § Reference(s)/Basis Affirmed Reversed New Ground 1–4, and 14–19 103(a) Bakker, Eyal, Otto, Scott, Van Krieken, Eyal II 1–4, and 14–19 1–10 and 14–19 103(a) Bakker, Eyal, Otto, Scott, Van Krieken, Eyal II, Mass 1–10 and 14–19 1–19 103(a) Bakker, Eyal, Otto, Scott, Van Krieken, Eyal II, Mass, Mass II, Laurila- Lumme, Pöykiö 1–19 12, 13 Overall Outcome 1–19 12, 13 FINALITY AND RESPONSE 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 rejection pursuant to this paragraph shall not be considered final for judicial review.” 37 C.F.R. § 41.50(b) also provides that 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 Appeal 2019-004868 Application 14/353,443 17 proceeding will be remanded to the examiner. . . . (2) Request rehearing. Request that the proceeding be reheard under § 41.52 by the Board upon the same record. . . . AFFIRMED; NEW GROUND 37 C.F.R. 41.50(b) Copy with citationCopy as parenthetical citation