Ex Parte 6200569 et alDownload PDFBoard of Patent Appeals and InterferencesJan 19, 201290010465 (B.P.A.I. Jan. 19, 2012) 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. 90/010,465 04/24/2009 6200569 76642.8002.US00 2045 22918 7590 01/20/2012 PERKINS COIE LLP P.O. BOX 1208 SEATTLE, WA 98111-1208 EXAMINER CAMPELL, BRUCE R ART UNIT PAPER NUMBER 3991 MAIL DATE DELIVERY MODE 01/20/2012 PAPER 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. PTOL-90A (Rev. 04/07) UNITED STATES PATENT AND TRADEMARK OFFICE ____________ BEFORE THE BOARD OF PATENT APPEALS AND INTERFERENCES ____________ Ex parte TANG-AN MEDICAL CO., LTD. Appellant ____________ Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 Technology Center 3900 ____________ Before SALLY G. LANE, RICHARD M. LEBOVITZ, and JEFFREY B. ROBERTSON, Administrative Patent Judges. LEBOVITZ, Administrative Patent Judge. DECISION ON APPEAL Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 2 This is a decision on the appeal by the Patent Owner of U.S. Patent No. 6,200,569 from the Patent Examiner’s rejections of claims 1, 2, 5, 6, and 9-24 in an ex parte reexamination proceeding. The Board’s jurisdiction for this appeal is under 35 U.S.C. §§ 6(b), 134(b), and 306. We reverse. STATEMENT OF CASE U.S. Patent No. 6,200,569 (hereinafter “the ‘569 patent”) issued March 13, 2001. The named inventor is Nanzheng Cheng. The real party in interest is Tang-An Medical Co. Ltd., who is the Patent Owner and Appellant (hereinafter, “Appellant”) in this appeal (Appellant’s Amended Appeal Brief, filed July 30, 2010 (“App. Br.”) 3). The ‘569 patent claims methods for decreasing glycosylated hemoglobin1 or blood glucose levels in a hyperglycemic patient comprising administering an extract of Cinnamomum bark to hyperglycemic patients. Hyperglycemia, or high blood sugar, is exemplified by higher than normal levels of blood glucose. (‘569 patent, col. 1, ll. 23-25.) “Hyperglycemia is associated with an increased risk for all the common late complications of diabetes mellitus” (id. at col. 1, ll. 31-32). The patent describes mushroom and plant extracts which “exhibit an insulin potentiating activity, i.e. they increase apparent insulin activity as measured by increased glucose uptake by cells. Improved insulin activity leads to decreased circulating insulin, which leads to lower blood glucose and lower glycosylated hemoglobin levels in patients” (id. at col. 3, ll. 17-23 & 56-67). A preferred source of the 1 Glycosylated hemoglobin is hemoglobin to which glucose is bound. Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 3 extracts is the bark from a cinnamon tree in the family of Cinnamomum (id. at col. 4, ll. 2-9). A “Request for Ex Parte Reexamination” of the issued claims of the ‘569 patent was filed April 24, 2009, pursuant to 35 U.S.C. §§ 302-307 and 37 C.F.R § 1.510. The Third-Party Requester was Avery N. Goldstein. Reexamination was ordered. An oral hearing was held on October 19, 2011. A written transcript will be entered into the record in due course. Claims 1, 2, 5, 6, and 9-24 are pending and stand rejected by the Examiner as follows (App. Br. 9): 1. Claims 1, 2, 9, and 10 under 35 U.S.C. § 103(a) as obvious in view of Kimura;2 2. Claims 5, 6, 14, and 15 under 35 U.S.C. § 103(a) as obvious in view of Kimura and Aburada;3 3. Claims 11 and 23 under 35 U.S.C. § 103(a) as obvious in view of Kimura and Gray;4 4. Claims 12, 13, and 24 under 35 U.S.C. § 103(a) as obvious in view of Kimura and Boynton;5 5. Claim 16 under 35 U.S.C. § 103(a) as obvious in view of Cheng6 and Kimura; 2 Yoshiyuki Kimura et al., Effects of Japanese and Chinese Traditional Medicine “Hachimi-Gan” (“Ba-Wei-Wan”) on Lipid Metabolism in Rats Fed High Sugar Diet, 53 PLANTA MEDICA 128-131 (1987). 3 U.S. Patent No. 4,613,591, issued Sept. 23, 1986. 4 Alison M. Gray and Peter R. Flatt, Evaluation of the antidiabetic effects of an edible mushroom (Agaricus campestris), 53 PROC. NUTRITION SOC’Y 125A (1994). 5 U.S. Patent No. 5,175,156, . issued Dec. 29, 1992. Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 4 6. Claims 17 and 18 under 35 U.S.C. § 103(a) as obvious in view of Cheng, Kimura, and Boynton; 7. Claims 19 and 20 under 35 U.S.C. § 103(a) as obvious in view of Cheng, Kimura, and Aburada; 8. Claims 21 and 22 under 35 U.S.C. § 103(a) as obvious in view of Cheng, Kimura, Aburada, and Boynton. Claims 1 and 11 are representative and read as follows (underlining and brackets indicate amendments to the patented claims made during the reexamination proceeding): 1. A method for decreasing the glycosylated hemoglobin level or blood glucose level in a hyperglycemic patient, said method comprising: administering to said patient a composition [comprising] having an active ingredient consisting essentially of an effective amount of a non-acidic, non-basic water extract or a dilute acidic extract of [Polygonum multiform roots or] Cinnamomum bark, [or a mixture thereof,] wherein said extract is administered in an amount sufficient to potentiate insulin activity in said hyperglycemic patient, whereby said glycosylated hemoglobin level or said blood glucose level is decreased as compared to the levels prior to treatment. 11. [The method according to claim 1, wherein said composition further comprises] A method for decreasing the glycosylated hemoglobin level or blood glucose level in a hyperglycemic patient, said method comprising: administering to said patient a composition having active ingredients consisting essentially of an effective amount of a non-acidic, non-basic water extract of Cinnamomum bark and a water extract of Agaricaceae, wherein said composition is administered in an amount sufficient to potentiate insulin 6 U.S. Patent No. 5,531,991. issued July 2, 1996. Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 5 activity in said hyperglycemic patient, whereby said glycosylated hemoglobin level or said blood glucose level is decreased as compared to the levels prior to treatment. 1. OBVIOUSNESS IN VIEW OF KIMURA Findings of Fact (“FF”) Kimura Publication [FF1] Kimura describes a Japanese and Chinese traditional medicine “Hachimi-Gan” which “has been clinically used in treatment of adult or senile diseases such as diabetes, hyperlipermia, arteriosclerosis, and arthritis.” (P. 128, col. 1.) [FF2] Hachimi-Gan is composed of eight herbs: Dioscoreae rhizoma (Dioscorea japonica Thunb.), Alismatis rhizoma (Alisma orientale Juze.), Rehmanniae radix (Rehmannia glutinosa Lib. var. purpurea Makino), Hoelen (Poria cocos Wolf.), Moutan cortex (Paeonia moutan Sims.), Corni fructus (cornus officinalis Sieb. et Zucc.), Aconiti tuber (Aconitum carmichaeli Debx.), and Cinnamomi cortex (Cinnamomum cassia Blume). (Kimura, p. 128, col. 1; emphases omitted.) [FF3] Kimura studied the effects of Hachimi-Gan and its constituents “on the lipid metabolism in rats” (p. 128, col. 1). [FF4] Rats in one group were fed a high sugar diet for sixty-one days (“High sugar diet fed group”) (p. 128; p. 129, Table II). [FF5] Rats in a treatment group were fed a high sugar diet and a water extract of Hachimi-Gan for sixty-one days (“High sugar diet + ‘Hachimi-Gan’”) (p. 128; p. 129, Table II). Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 6 [FF6] Table II shows that a high sugar diet produced hyperlipermia, elevated insulin levels, and increased triglycerides (TG) in rats (p. 129, col. 1). [FF7] Table II shows that Hachimi-Gan administered orally to rats at 500 mg/kg/day reduced insulin and TG levels as compared to the rats fed a high sugar diet (p. 129). [FF8] Table II shows that the glucose levels in control rats were not significantly different from those fed a high sugar diet or a high sugar diet plus Hachimi-Gan (p. 129). [FF9] Table III shows that a water extract of Cinnamomi cortex significantly inhibited adrenaline-induced lipolysis in adipocytes (p. 129, col. 2). [FF10] Table IV shows that a water extract of Cinnamomi cortex significantly inhibited adrenaline-induced lipolysis in adipocytes (p. 129, col. 2). [FF11] Table V shows that a water extract of Cinnamomi cortex significantly increased lipogenesis from glucose in rats (p. 129, col. 2; p. 130). [FF12] Table VI shows that a water extract of Cinnamomi cortex was not significantly different from insulin alone in insulin-induced lipogenesis (p. 130, Table VI). [FF13] Kimura concluded: In the experiments, it was found that additional administration of a traditional medicine ‘Hachimi-Gan’ reduced the levels of serum triglyceride and insulin without elevating glucose as compared to the high sugar diet-fed groups. (P. 130, col. 2.) Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 7 [FF14] “These findings suggest that . . . Cinnamomi cortex . . . might have insulin-like actions, for example, an anti-lipolytic and a lipogenic action.” (P. 130, col. 2.) [FF15] Therefore, Moutan cortex, Cinnamomi cortex, and Corni fructus of a traditional medicine “Hachimi-Gan” act as insulin- like substances and, consequently, the above natural drugs may partly reduce the elevation of serum insulin levels without affecting glucose levels in rats fed the high sugar diet. (P. 130, col. 2 to p. 131, col. 1.) [FF16] Furthermore, cinnamic acid and cinnamic aldehyde were isolated as anti-lipolytic substances from Cinnamomi cortex. It was reported that cinnamic acid and cinnamic aldehyde inhibited the VLDL synthesis from acetate in rat hepatocytes (14). Therefore, these finding suggested that the cinnamic acid and cinnamic aldehyde content of Cinnamomi cortex may prevent the hyperlipemia caused by the high sugar diet. (P. 131, col. 1.) Analysis Claim 1 is drawn to a method “for decreasing the glycosylated hemoglobin level or blood glucose level in a hyperglycemic patient.” The method comprises “administering” to a patient “a non-acidic, non-basic water extract or a dilute acidic extract of Cinnamomum bark.” The claim further recites that the “extract is administered in an amount sufficient to potentiate insulin activity in said hyperglycemic patient.” The claim has a “whereby clause” that states the result of the “administering” step: “whereby said glycosylated hemoglobin level or said blood glucose level is decreased Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 8 as compared to the levels prior to treatment.” The Cinnamomum bark extract thus decreases blood glucose and glycosylated hemoglobin levels upon administration to patients. The Examiner rejected claims 1, 2, 9, and 10 as obvious in view of the teachings in the Kimura publication. Kimura describes the Chinese traditional medicine Hachimi-Gan which comprises eight different herbs, one of which is Cinnamomum (FF2). There are two main issues raised by the rejection: 1. In view of Kimura, would it have been obvious to the ordinary skilled worker to administer a water extract of Cinnamomum bark to hyperglycemic patients? 2. Would it have been predictable that a water extract of Cinnamomum bark, when administered to hypoglycemic patients, would be effective in decreasing glycosylated hemoglobin or blood glucose levels in a hyperglycemic patient? We address each of these issues below. Obviousness of administering a water extract of Cinnamomum bark Hachimi-Gan, an herbal medicine comprising Cinnamomum bark (FF2), had been used clinically prior to the filing date of the ‘569 patent to treat various human disorders, including diabetes (FF1). Kimura studied the effects of Hachimi-Gan, and its constituent herbs, on rats fed a high sugar diet (FF3-FF12). Cinnamomum bark extracts were shown to have insulin- like activity in several of the assays used (FF14), including in inhibiting lipolysis (FF9 & FF10) and increasing lipogenesis (FF11). Kimura Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 9 suggested that Cinnamomum “may prevent the hyperlipemia caused by the high sugar diet.” (FF16.) Based on the actual clinical use of Hachimi-Gan, and the evidence in Kimura that Cinnamomum extract had insulin-like activity, the Examiner concluded that the skilled worker would have had a reason to have used Cinnamomum extract to treat diabetes for its expected benefit (Ans. 5). The Examiner’s reasoning was fact-based and supported by a preponderance of the evidence. Appellant attempts to distinguish Kimura from the claimed invention on the grounds that the claim requires that the “glycosylated hemoglobin level” or “blood glucose level” is “decreased as compared to the levels prior to treatment” with the Cinnamomum extract. Appellant contends that Kimura does not disclose or suggest that any of its extracts would decrease blood glucose levels in a human as recited in the claim (App. Br. 10-11). Appellant does not appear to challenge the determination that it would have been obvious to administer Cinnamomum extract to prevent hyperlipemia caused by a high sugar diet (FF16), but rather contends it would not have been obvious to administer such extract for the purpose of reducing blood sugar levels. In other words, Appellant interprets the claim to require recognition that the extract be administered to patients for the purpose of lowering blood glucose levels. The preamble of claim 1 recites that the method is “for decreasing the glycosylated hemoglobin level or blood glucose level in a hyperglycemic patient.” Patients, as argued by Appellant, means human patients (Reply Br. (Appellant’s Reply Brief) 7-8, dated March 21, 2011). A statement in the Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 10 claim preamble that a method is “for” producing a particular result does not require that the practitioner carry out the method steps for the stated purpose, or even to recognize that the recited purpose is achieved. The reason is that the stated purpose does not change how the process is performed,7 but rather requires appreciation or recognition that the method is carried out for that purpose, which numerous Federal Circuit cases have found to be insufficient to distinguish over prior art disclosing the same method steps. MEHL/Biophile Int’l Corp. v. Milgraum, 192 F.3d 1362, 1365 (Fed. Cir. 1999); In re Cruciferous Sprout Litig., 301 F.3d 1343, 1351 (Fed. Cir. 2002); Perricone v. Medicis Pharm. Corp., 432 F.3d 1368, 1377-79 (Fed. Cir. 2005). Although such principles were enunciated in the context of section 102 anticipation rejections, they apply equally to section 103 obviousness rejections where the claimed method steps are suggested by the cited prior art. Therefore, while Kimura suggested administering Cinnamomum extract to treat hyperlipemia (FF16), a purpose different from the claimed purpose of reducing glycosylated hemoglobin or blood glucose levels, because the administering step is the same as in the claim, we conclude that the claimed method would have been obvious to one of ordinary skill in the art. The fact that Kimura suggested a different purpose for administering 7 In Bristol-Myers Squibb Co. v. Ben Venue Labs., Inc., 246 F.3d 1368, 1375-76 (Fed. Cir. 2001), the court treated a claim expression (“method for treating a cancer patient to effect regression of a taxol-sensitive tumor, said method being associated with reduced hematologic toxicity”) as non- limiting because “[t]he expression does not result in a manipulative difference in the steps of the claim.” Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 11 Cinnamomum extract does not change the way in which the extract is administered. The only difference between the claimed method and the method suggested by Kimura is the recognition that the Cinnamomum would reduce blood sugar, which is insufficient to distinguish the claim from Kimura. Appellant has not established that the step of administering the extract to hyperglycemic patients is any different when it is done to treat hyperlipemia, rather than to lower blood glucose levels. See In re Stencel, 828 F.2d 751 (Fed. Cir. 1987). Claim 1 also recites, after the step of “administering to hyperglycemic patients, “whereby said glycosylated hemoglobin level or said blood glucose level is decreased as compared to the levels prior to treatment.” This phrase states the result of administering the Cinnamomum bark. “A ‘whereby’ clause that merely states the result of the limitations in the claim adds nothing to the patentability or substance of the claim.” Texas Instruments Inc. v. Int’l Trade Comm’n, 988 F.2d 1165, 1172 (Fed. Cir. 1993). Consequently, the whereby clause does not distinguish claim 1 from Kimura. Would it have been predictable that a water extract of Cinnamomum bark would be effective in decreasing the glycosylated hemoglobin level or blood glucose level in a hyperglycemic patient? In this case, the inventor found that Cinnamomum bark lowered blood glucose levels and/or glycosylated hemoglobin levels. Appellant contends that it would not have been obvious to the skilled worker that Cinnamomum would have such activities (App. Br. 19). We thus must consider whether Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 12 this glucose lowering activity was predictable based on Kimura, and if not, is its discovery is sufficient to rebut the Examiner’s prima facie case of obviousness when the evidence of record as a whole is considered . The Examiner acknowledged that Kimura did not expressly teach a glucose-lowering effect, but asserted that “the Kimura disclosure would have suggested to one of ordinary skill in the art that Cinnamomum extract could be used for this purpose” (Ans. 17, ¶ D.) However, the Examiner did not provide adequate evidence to support this statement. The Examiner stated that the “eight plant materials tested by Kimura are ingredients in a traditional medicine used clinically to treat diabetes, so there was a reasonable expectation that one or more would be useful for treating hyperglycemia.” (Ans. 13). Treating diabetes, however, is not the same thing as reducing blood glucose levels as recited in the claim. It is true that Kimura explicitly taught that Cinnamomum had insulin-like properties, but Kimura did not identify lowering blood sugar glucose as one of these properties. Rather, Kimura suggested Cinnamomum extract for preventing hyperlipemia caused by a high-sugar diet (FF16). Moreover, Hachimi-Gan was explicitly described by Kimura as not affecting glucose levels in its animal model (FF15). The Examiner also stated: Kimura concludes that Cinnamomum, as well as two other ingredients of Hachimi-Gan, “act as insulin-like substances” (p. 131). This would suggest to one skilled in the art that Cinnamomum extract could lower blood glucose level, since this activity of insulin is extremely well known in the art. (Ans. 14). Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 13 This conclusion is not supported by the evidence. The only properties mentioned by Kimura for Cinnamomum are its anti-lipolytic and lipogenic activities (FF14). Based on these activities, Kimura suggested that Cinnamomum “may prevent the hyperlipemia caused by the high sugar diet.” (FF16). The Examiner did not establish, however, that Cinnamomum affected blood sugar levels. To the contrary, Dr. Donald Graves, a scientist who conducts research on cinnamon extract in relation to insulin action, testified that the results described by Kimura “do not make it obvious how cinnamon extract could decrease blood glucose level in humans by the effects on in vitro lipolysis and lipogenesis shown in Kimura’s study.” (Declaration by Dr. Donald J. Graves (“Graves Decl.”) ¶ 5.) The Examiner responded that the “eight plant materials tested by Kimura are ingredients in a traditional medicine used clinically to treat diabetes, so there was a reasonable expectation that one or more would be useful for treating hyperglycemia.” (Ans. 13.) However, the issue is not whether Cinnamomum would be useful for treating hyperglycemia, but whether it would have been expected to reduce blood sugar levels. We see no compelling evidence that it would. As argued by the Patent Owner, Kimura did not teach or suggest that its Cinnamomum extract decreased blood glucose levels in hyperglycemic animals. First, there is no evidence that the rat model utilized by Kimura, in which rats were fed a high sugar diet, produced hyperglycemia (high blood glucose). Kimura’s Table II summarizes the results of an experiment in which rats were fed a high sugar diet. Blood glucose levels in control rats Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 14 (column 1) were not reported as significantly different from those fed a high sugar diet (column 2) or a high sugar diet plus Hachimi-Gan (column 3) (FF8). Thus, Kimura did not administer Hachimi-Gan to hyperglycemic rats. The experiment summarized in Table II does not demonstrate that Hachimi-Gan (column 3) changed glucose levels as compared to the high sugar diet-fed group (column 2). Kimura stated that Hachimi-Gan “drugs may partly reduce the elevation of serum insulin levels without affecting glucose levels in rats fed the high sugar diet.” (FF13.) Kimura indicated that that such effect was the property of the “natural drugs” comprising Hachimi- Gan (FF14). Based on this evidence, persons of ordinary skill in the art would not have reasonably expected that Hachimi-Gan, or the natural drugs which comprise it, would decrease blood sugar levels. The Examiner did not establish that Kimura’s teachings would have suggested such activity to persons of ordinary skill in the art. Expert testimony supports the Patent Owner’s position that Kimura did not suggest that Cinnamomum would decreases sugar levels in hyperglycemic humans. Dr. Graves reviewed the Kimura publication and provided his written opinion on Kimura’s in vitro lipid assays and their relevance to blood glucose levels (Graves Decl. ¶¶ 1 & 2). After studying the experiments performed by Kimura, Dr. Graves testified that “when Kimura’s Table III-VI are considered, they do not make it obvious how cinnamon extract could decrease blood glucose level in humans by the effects on in vitro lipolysis and lipogenesis shown in Kimura’s study.” (Graves Decl. ¶ 5.) Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 15 In sum, the evidence does not establish that Kimura discloses or suggests that Cinnamomum bark would have been predicted to decrease glucose levels when administered to hyperglycemic patients. The inventor’s discovery of this property is a proper basis upon which to rebut the prima facie case of obviousness. As acknowledged by the Examiner, Kimura did not administer a Cinnamomum extract to human patients, nor did Kimura administer the extract to hyperglycemic rats. Thus, the discovery that such extract has glucose lowering properties is not the “[m]ere recognition of latent properties in the prior art . . . .” In re Baxter Travenol Labs., 952 F.2d 388, 392 (Fed. Cir. 1991). Kimura – the prior art cited in this rejection – did not carry out the claimed “administering” step. In Baxter, the applicant had argued that the claimed plasticized blood donor bag comprised of DEHP had unexpected properties in suppressing hemolysis of red blood cells stored inside it. Baxter, 952 F.2d at 389. The court found that such evidence was insufficient to rebut prima facie obviousness because the prior art disclosed DEHP-plasticized donor bags. Therefore, Baxter’s blood bag had the same hemolytic-suppressing function as the prior art blood bags – albeit unknown at the time of the invention. Baxter, 952 F.2d at 391. In this case, Kimura disclosed a Cinnamomum extract, but did not administer the extract to human patients who were hyperglycemic. Thus, the glucose lowering property was not manifested by the prior art. An unrecognized result would not have been a basis for patentability in circumstances where both the claimed invention and the closest prior art practiced the same step which gave rise it. However, a result which is the Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 16 outcome of an invention suggested by the prior art can be a proper basis for patentability – as long as the result was not a result of a step identically accomplished by the prior art and, when compared to the closest prior art, would not have been predicted by persons of ordinary skill in the art. As stated in KSR International Co. v. Teleflex, Inc. 550 U.S. 398, 416 (2007), the “combination of familiar elements according to known methods is likely to be obvious when it does no more than yield predictable results.” In this case, the result that Cinnamomum bark decreased glycosylated hemoglobin level and/or blood glucose levels was not a predictable result. We conclude that the discovery that an extract of Cinnamomum bark decreased glycosylated hemoglobin level and/or blood glucose levels, when administered to hyperglycemic patients, is sufficient to rebut the prima facie obviousness of the claimed subject matter because it would not reasonably have been predicted to do so based on the prior art. While the recognition of such result was insufficient to distinguish the step carried out in the claimed method from the step suggested by Kimura, because this arises in the context of section 103, an appellant is not foreclosed from relying on the same result to rebut a prima facie case of obviousness. Accordingly, we reverse the rejection of claims 1, 2, 9, and 10 as obvious in view of the Kimura publication. OBVIOUSNESS REJECTIONS 2-8 Claims 5, 6, and 11-24 all involve the administration of Cinnamomum bark and an additional substance (e.g., water extract of Agaricaceae in claim 11; trivalent chromium salt in claim 12). All the rejections are based on the Appeal 2011-008841 Reexamination Control 90/010,465 Patent 6,200,569 B1 17 obviousness of administering Cinnamomum extract to hyperglycemic patients, a determination that we have found to be an error in view of the extract’s glucose-lowering activity. None of the additionally cited publications were found to supplement this deficiency. Consequently, we reverse rejections 2-8 of claims 5, 6, and 11-24. TIME PERIOD FOR RESPONSE Requests for extensions of time in this ex parte reexamination proceeding are governed by 37 C.F.R. § 1.550(c). See 37 C.F.R. § 41.50(f). REVERSED bim FOR PATENT OWNER: PERKINS COIE, LLP P.O. BOX 1208 SEATTLE, WA 98111-1208 FOR THIRD-PARTY REQUESTER: AVERY N. GOLDSTEIN GIFFORD, KRASS, SPRINKLE, ANDERSON & CITKOWSKI, P.C. P.O. BOX 7021 TROY, MI 48007-7021 Copy with citationCopy as parenthetical citation