Prosecution Insights
Last updated: April 18, 2026
Application No. 18/041,744

STABLE COMPOSITION COMPRISING POLYDATIN

Non-Final OA §103§112§DP
Filed
Feb 15, 2023
Examiner
WISTNER, SARAH CLINKSCALES
Art Unit
1616
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
L'Oréal
OA Round
3 (Non-Final)
21%
Grant Probability
At Risk
3-4
OA Rounds
3y 10m
To Grant
89%
With Interview

Examiner Intelligence

Grants only 21% of cases
21%
Career Allow Rate
4 granted / 19 resolved
-38.9% vs TC avg
Strong +68% interview lift
Without
With
+68.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
52 currently pending
Career history
71
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
34.4%
-5.6% vs TC avg
§102
15.3%
-24.7% vs TC avg
§112
24.6%
-15.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 19 resolved cases

Office Action

§103 §112 §DP
DETAILED ACTION Notice of Pre-AIA or AIA Status In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 03/13/2026 has been entered. Claim Status Applicant’s amendment of 03/13/2026 is acknowledged. Claims 1-3, 6-7, and 10-13 are amended, and claims 4-5 and 8-9 are cancelled. Claims 1-3, 6-7, and 10-15 are currently pending and are examined on the merits herein. Priority The instant application is a 371 of PCT/JP2021/030482 filed on 08/13/2021 and claims foreign priority to JP2020-141567 filed on 08/25/2020 and FR2010177 filed on 10/06/2020 as reflected in the filing receipt dated on 06/27/2023. Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Withdrawn Objections and Rejections Applicant’s arguments regarding the previous rejections under 101, specifically that the stabilization of polydatin in the claimed combination is markedly different from that of such a naturally occurring counterpart, was found to be persuasive. Thus, the rejections are hereby withdrawn. Applicant’s cancellation of claims 4-5 and 8-9 has rendered moot the previous 103 and non-statutory double patenting rejections over these claims. Thus, the rejections are hereby withdrawn. Claim Rejections - 35 USC § 112(b) The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-3, 6-7, and 10-15 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1 recites a composition comprising “0.5% by weight or more” of chlorogenic acid, among other ingredients. It is unclear how the composition can comprise chlorogenic acid in a range of 0.5% by weight or more, which encompasses embodiments wherein the chlorogenic acid is present in an amount of 100% by weight, and also comprise other ingredients. Therefore, the scope of the claim is indefinite. Claims 2-3, 6-7, and 10-15 are rejected by virtue of their dependency on claim 1, as they fail to resolve the ambiguity in question. Claims 11-13 each recite the limitation “weight ratio” followed by the recitation of a range comprising singular values rather than a range comprising defined ratios of (a)/(b), (a)/(c), or (c)/(b), respectively. The claim is indefinite because it does not define exactly what concentrations of the first component relative to the second component are permitted. For example, from 1:1 to 1:8. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1-3, 6-7, and 10-15 are rejected under 35 U.S.C. 103 as being unpatentable over Pan (US20180207077A1; 07/26/2018; PTO-892 of 06/02/2025) in view of Koerbaecher (DE4436270C1; 03/07/1996; PTO-892 of 06/02/2025). Pan discloses microemulsion compositions, which are useful as cosmetic and/or pharmaceutical compositions for application to the skin and/or hair, comprising: (a) polydatin, (b) optionally, niacinamide; (c), optionally baicalin, (d) one or more oils, (e) water, and (f) one more emulsifiers (Abstract). In an exemplary embodiment prepared based on wt. % of the total composition (Paragraphs 0083-0084, Formulation No. 4), the composition comprises 1% polydatin, 2% vitamin B3 as niacinamide, and water, among other ingredients. Regarding claim 1: Polydatin, niacinamide, and water read on the same as instantly claimed. Regarding claim 2: Polydatin is a stilbene compound and antioxidant extracted from the root and rhizome of the plant species Polygonum cuspidatum (Paragraph 0006). Regarding claim 3: The amount of polydatin lies within and thus reads on the instantly claimed range. Regarding claim 10: The amount of niacinamide lies within and thus reads on the instantly claimed range. Regarding claim 12: The weight ratio of polydatin to niacinamide, which equals 0.5, lies within and thus reads on the instantly claimed range. It is noted that other exemplary embodiments disclosed by Pan, including Formulations 5 and 7-10, also meet the above instant claim limitations. Regarding claim 14: Pan further notes that the term “microemulsion” refers to a suspension or mixture of tiny droplets of an oil component in an aqueous component (Paragraph 0088). Because the compositions of Pan comprise water as the aqueous component, the compositions meet the limitation of an O/W emulsion. Regarding claim 15: Pan further discloses methods for improving the appearance of skin and hair by applying the microemulsion composition to the skin or hair (Paragraph 0016). Because skin is a keratin substance as evidenced by the instant specification (Page 3, lines 10-15), the method of Pan reads on the instant method. However, Pan does not expressly teach that the formulation comprises the chlorogenic acid recited in instant claims 1, 6-7, 11, and 13. Koerbaecher teaches cosmetic and dermatological formulations comprising 0.01 wt. % to 10 wt. % chlorogenic acid for use in the treatment, care, and cleansing of the skin and/or hair (Paragraph 0017). Chlorogenic acid is plant-derived (Paragraph 0013) and found to be an effective antioxidant, effective against the harmful oxidative influences of oxidizing substances and the oxidative effect of secondary products cause by radiation, namely light, and in particular UV light (Paragraphs 0011-0012). It can be advantageously combined with other antioxidants, including stilbenes and its derivatives (Paragraph 0025). The cosmetic and dermatological preparations of Koerbaecher can be in various forms, including oil-in-water (O/W) emulsion, among others (Paragraph 0019). In exemplary embodiments (Example 4, Formulations I and II; Machine translation provided on Page 25), hair conditioners comprise 1 wt. % to 1.5 wt. % chlorogenic acid, wherein chlorogenic acid is represented by the term “CGS” (Paragraph 0063). Regarding the chlorogenic acid recited in claims 1, 6-7, 11, and 13: It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the microemulsion composition of Pan (Formulation No. 4) by further including the plant-derived chlorogenic acid of Koerbaecher. One of ordinary skill in the art would have been motivated to include chlorogenic acid to achieve an added antioxidative and photoprotective effect, which Koerbaecher teaches is even more advantageous in combination with another antioxidant, including stilbenes, such as the polydatin of Pan. Regarding the instantly claimed amount of the chlorogenic acid: It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to manipulate the amount of chlorogenic acid using 1 wt. % to 1.5 wt. %, which lies within and thus renders obvious the ranges recited in claims 1 and 7, as a starting point for routine optimization because Koerbaecher teaches that any amount within this range is effective in providing antioxidative effects in cosmetic or dermatological formulations. Regarding the instantly claimed weight ratios: The weight ratio of polydatin to chlorogenic acid in the composition taught by the combination of Pan and Koerbacher, which equals approximately 0.7 to 1, lies within and thus renders obvious the range recited in claim 11. The weight ratio of niacinamide to chlorogenic acid, which equals approximately 1.3 to 2, lies within and thus renders obvious the range recited in claim 13. One of ordinary skill in the art would have a reasonable expectation of success in modifying the composition of Pan as proposed because Koerbaecher teaches that chlorogenic acid can be used in oil-in-water cosmetic or dermatological preparations, particularly in combination with other antioxidants including stilbenes. Further, the antioxidative effects of chlorogenic acid are consistent with the intended outcomes of applying the formulation of Pan, which include improving skin appearance by imparting photoprotection (Pan, Paragraph 0016). Response to Arguments Applicant’s arguments submitted on 03/13/2026 with respect to rejections under 35 U.S.C. 103 have been fully considered, but were not found to be persuasive. Applicant argues that the amended claims are commensurate in scope with the alleged unexpected results presented in Examples 1-3 of the specification. The Examiner respectfully disagrees. Instant claim 1 recites a cosmetic composition comprising any amount of polydatin, any amount of niacinamide, and 0.5 wt.% or more of chlorogenic acid. However, Applicant’s Examples 1-3 only provide support for much more limited embodiments. Because Applicant’s results only compare the combination of 0.5 wt.% polydatin, 4 wt.% niacinamide, and 0.5 – 1.5 wt.% chlorogenic acid, it is not evident that the more broadly claimed combination recited in instant claim 1 would achieve the same alleged superior and unexpected results. Additionally, the Examiner notes that Applicant’s Comparative Example 4, which does not comprise chlorogenic acid, appears to have a higher photostability than Applicant’s Comparative Example 1, which comprises 0.25 wt.% chlorogenic acid. Thus, without a sufficient number of tests both inside and outside the claimed range, the data fail to show the criticality of the claimed range. See MPEP 716.02(d) and In re Hill, 284 F.2d 955, 128 USPQ 197 (CCPA 1960). Applicant further argues that the photostability of polydatin is unexpected and distinct form the teachings of Koerbaecher. Applicant asserts that the “photostability” demonstrated in the present application refers to the ability to prevent polydatin from undergoing photoisomerization and the “photoprotective effects” taught by Koerbaecher are refer to the ability of chlorogenic acid to act as a radical scavenger to protect the skin or hair from photo-damage. This argument was not found to be persuasive. First, Applicant’s argued definition of “photostability” does not appear to be aligned with Applicant’s calculated photostability metric used to demonstrate allegedly unexpected results (Instant Specification, Page 25). Applicant calculates photostability as a measure of polydatin remaining in a composition after exposure to Xenon light as compared to a composition comprising the same components but was not exposed to light. As such, it is not clear that Applicant’s photostability calculation actually measures the percentage of polydatin that undergoes transformation from active trans-conformation to less active cis-conformation upon exposure to light, as argued by Applicant. Rather, it appears that the calculation measures whether any change in polydatin concentration is detected by comparing peak areas measured by HPLC, including those which would arise from oxidation-induced effects. Koerbaecher teaches chlorogenic acid as an effective agent against the harmful oxidative effects caused by light. An ordinarily skilled artisan would recognize that the light-protective effects of chlorogenic acid are not limited to skin or hair but would also persist within the composition itself. Accordingly, a skilled artisan would reasonably expect that the presence of chlorogenic acid contributes to the ability of components within the composition, including polydatin, to resist chemical or physical changes when exposed to light. Therefore, the Examiner maintains that the photostability of polydatin in Applicant’s composition is not unexpected, as argued by Applicant, but rather the result of an art-recognized property of chlorogenic acid. Regarding Applicant’s argument that the simultaneous achievement of good thermal stability and photostability of polydatin is an unexpected result that is not taught or suggested by the cited prior art: Because Comparative Examples 4 and 5 demonstrate that the observed thermal stability is not a property attributed to chlorogenic acid and/or niacinamide, this argument was not found to be persuasive for the same reasons as discussed in relation to photostability above. Overall, Applicant fails to provide sufficient evidence to establish "that the differences in results are in fact unexpected and unobvious and of both statistical and practical significance" as per MPEP 716.02(b). In view of the foregoing, the prior art rejections of record are maintained. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-3, 6-7, and 10-15 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1, 3, 10, 15-16, and 18 of U.S. Patent No. US 10,137,072 B2 in view of Koerbaecher (DE4436270C1; 03/07/1996; PTO-892 of 06/02/2025) and Pan (US20180207077A1; 07/26/2018; PTO-892 of 06/02/2025). US ‘072 claim 1 recites a method comprising applying to the skin of a subject a cosmetic composition comprising: (a) 0.001 to 20 wt. % of one or more antioxidants selected from the group consisting of polydatin, among others; (b) 0.001 wt. % to 30 wt. % of one or more cosmetically acceptable hydrotropes selected from the group consisting of nicotinamide (also known as niacinamide), among others; and (c) a cosmetically acceptable carrier. US ‘072 claim 3 recites that (a) comprises polydatin. US ‘072 claim 10 recites that (c) comprises water, an organic solvent, or mixture thereof. US ‘072 claim 15 recites a method comprising applying to the skin of a subject a cosmetic composition comprising: (a) 0.001 to 20 wt. % of one or more antioxidants selected from the group consisting of polydatin, among others; (b) 0.001 wt. % to 30 wt. % of one or more cosmetically acceptable hydrotropes selected from the group consisting of nicotinamide (also known as niacinamide), among others; (c) a cosmetically acceptable carrier selected from the group consisting of water and an organic solvent; and other ingredients. The method step of applying the composition to the skin reads on the method for treating a keratin substance recited in instant claim 15. Because US ‘072 claims 10 and 15 recite only two options for the cosmetically acceptable carrier, one of ordinary skill in the art could immediately envision an embodiment wherein water is selected and, therefore, the claim reads on the water of instant claim 1. US ‘072 claim 16 recites that the composition comprises nicotinamide (also known as niacinamide), and claim 18 recites that (a) comprises polydatin, which read on the same as recited in instant claim 1. The amounts of polydatin and nicotinamide recited in the claims of US ‘072 overlap the ranges recited in instant claims 3 and 10, respectively. The claims of US ‘072 differ from the instant claims in that the claims of US ‘072 do not explicitly recite that the composition comprises the chlorogenic acid recited in instant claims 1, 6-7, 11, and 13, that the polydatin is derived from plants as recited in instant claim 2, the specific amounts of polydatin or niacinamide recited in instant claims 3 or 10, respectively, the weight ratio of polydatin to niacinamide recited in instant claim 12, or that the composition is an O/W emulsion as recited in instant claim 14. The teachings of Koerbaecher and Pan are as set forth above. Regarding the chlorogenic acid recited in claims 1, 6-7, 11, and 13: It would have been obvious to one of ordinary skill in the art to modify the composition of the method recited in the claims of US ‘072 by adding the plant-derived chlorogenic acid of Koerbaecher. One of ordinary skill in the art would have been motivated to include chlorogenic acid to achieve an added antioxidative and photoprotective effect, which Koerbaecher teaches is even more advantageous in combination with another antioxidant, including stilbene compounds like the polydatin recited in the claims of US ‘072. Regarding the instantly claimed amount of the chlorogenic acid: It would have been obvious to one of ordinary skill in the art to manipulate the amount of chlorogenic acid using 1 wt. % to 1.5 wt. %, which lies within and thus renders obvious the ranges recited in instant claims 1 and 7, as a starting point for routine optimization of the composition taught by the combination of US ‘072 claims and Koerbaecher because Koerbaecher teaches that any amount between 1 wt. % to 1.5 wt. % is effective in providing antioxidative effects in cosmetic or dermatological formulations. Regarding instant claim 2: It would have been obvious to one of ordinary skill in the art to substitute the polydatin of the composition taught by the combination of US ‘072 claims and Koerbaecher with the plant-derived polydatin of Pan according to known methods to yield the predictable result of a cosmetic composition for application to the skin comprising polydatin, niacinamide, water, and chlorogenic acid. Regarding instant claim 3: It would have been obvious to one of ordinary skill in the art to manipulate the amount of polydatin using 1 wt. %, which lies within and thus renders obvious the instantly claimed range, as a starting point for routine optimization of the composition taught by the combination of US ‘072 claims, Koerbaecher, and Pan because Pan teaches that 1 wt. % is suitable for imparting antioxidative, anti-inflammatory, and photoprotective effects in cosmetic compositions that are applied to the skin. Regarding instant claim 10: It would have been obvious to one of ordinary skill in the art to manipulate the amount of nicotinamide (also known as niacinamide) using 2 wt. %, which lies within and thus renders obvious the instantly claimed range, as a starting point for routine optimization of the composition taught by the combination of US ‘072 claims, Koerbaecher, and Pan because Pan teaches that 2 wt. % is suitable for formulating cosmetic compositions comprising polydatin, niacinamide, and water that are applied to the skin. Regarding instant claims 11-13: The weight ratio of polydatin to chlorogenic acid in the composition taught by the combination of US ‘072 claims, Koerbaecher, and Pan, which equals approximately 0.7 to 1, lies within and thus renders obvious the range recited in instant claim 11. The weight ratio of polydatin to nicotinamide, which equals 0.5, lies within and thus renders obvious the range recited in instant claim 12. The weight ratio of nicotinamide to chlorogenic acid, which equals approximately 1.3 to 2, lies within and thus renders obvious the range recited in instant claim 13. Regarding instant claim 14: It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the composition taught by the combination of US ‘072 claims, Koerbaecher, and Pan such that it is in the form of an O/W emulsion. One of ordinary skill in the art would have been motivated to use the form of O/W emulsion because Pan teaches that polydatin allows the formation of clear and stable microemulsions that are unable to phase separate (Pan, Paragraph 0086), which is desirable when formulation cosmetic compositions. One of ordinary skill in the art would have a reasonable expectation of success in modifying the composition of the method recited in the claims of US ‘072 as proposed because Koerbaecher teaches that chlorogenic acid can be used in oil-in-water cosmetic or dermatological preparations, particularly in combination with other antioxidants including stilbenes. Further, the antioxidative effects of chlorogenic acid are consistent with the intended outcomes of applying the formulation recited in the claims of US ‘072, which include providing photoprotection. Claims 1-3, 6-7, and 10-15 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-3, 11, and 17 of U.S. Patent No. US 10,695,278 B2 in view of Pan (US20180207077A1; 07/26/2018; PTO-892 of 06/02/2025) and Koerbaecher (DE4436270C1; 03/07/1996; PTO-892 of 06/02/2025). US ‘278 claim 1 recites a cosmetic composition comprising: 0.5 to 5 wt. % of polydatin; optionally, one or more solubilizers; and a cosmetically acceptable carrier, among other ingredients. Polydatin reads on the same recited in instant claim 1, and the amount of polydatin overlaps the range recited in instant claim 3. US ‘278 claims 2 and 3 recited that the composition does comprise one or more solubilizers comprising one or more cosmetically acceptable hydrotropes selected from the group consisting of nicotinamide (also known as niacinamide), caffeine, sodium PCA, sodium salicylate, urea, hydroxyethylurea, or mixtures thereof. Because US ‘278 claim 3 recites only six options for the hydrotrope, one of ordinary skill in the art could immediately envision an embodiment wherein nicotinamide is selected and, therefore, the claim reads on the niacinamide of instant claim 1. US ‘278 claim 11 recites that the cosmetically acceptable carrier comprises water, an organic solvent, or a mixture thereof. Because US ‘278 claim 11 recites only two options for the cosmetically acceptable carrier, one of ordinary skill in the art could immediately envision an embodiment wherein water is selected and, therefore, the claim reads on the water of instant claim 1. US ‘278 claim 17 recites a method comprising applying the composition of claim 1 to skin. The method step of applying the composition to the skin reads on the method for treating a keratin substance recited in instant claim 15. The claims of US ‘278 differ from the instant claims in that the claims of US ‘072 do not explicitly recite the chlorogenic acid recited in instant claims 1, 6-7, 11, and 13, that the polydatin is derived from plants as recited in instant claim 2, the amount of niacinamide recited in instant claim 10, the weight ratio of polydatin to niacinamide recited in instant claim 12, or that the composition is an O/W emulsion as recited in instant claim 14. The teachings of Pan and Koerbaecher are as set forth above. Regarding the chlorogenic acid recited in claims 1, 6-7, 11, and 13: It would have been obvious to one of ordinary skill in the art to modify the composition of the method recited in the claims of US ‘278 by adding the plant-derived chlorogenic acid of Koerbaecher. One of ordinary skill in the art would have been motivated to include chlorogenic acid to achieve an added antioxidative and photoprotective effect, which Koerbaecher teaches is even more advantageous in combination with another antioxidant, including stilbene compounds like the polydatin recited in the claims of US ‘278. Regarding the instantly claimed amount of the chlorogenic acid: It would have been obvious to one of ordinary skill in the art to manipulate the amount of chlorogenic acid using 1 wt. % to 1.5 wt. %, which lies within and thus renders obvious the ranges recited in instant claims 1 and 7, as a starting point for routine optimization of the composition taught by the combination of US ‘278 claims, Pan, and Koerbaecher because Koerbaecher teaches that any amount between 1 wt. % to 1.5 wt. % is effective in providing antioxidative effects in cosmetic or dermatological formulations. Regarding instant claim 2: It would have been obvious to one of ordinary skill in the art to substitute the polydatin of the composition taught by the combination of US ‘278 claims, Pan, and Koerbaecher with the plant-derived polydatin of Pan according to known methods to yield the predictable result of a cosmetic composition for application to the skin comprising polydatin, niacinamide, water, and chlorogenic acid. Regarding instant claim 3: It would have been obvious to one of ordinary skill in the art to manipulate the amount of polydatin using 1 wt. %, which lies within and thus renders obvious the instantly claimed range, as a starting point for routine optimization of the composition taught by the combination of US ‘278 claims, Pan, and Koerbaecher because Pan teaches that 1 wt. % is suitable for imparting antioxidative, anti-inflammatory, and photoprotective effects in cosmetic compositions that are applied to the skin. Regarding instant claim 10: It would have been obvious to one of ordinary skill in the art to manipulate the amount of nicotinamide (also known as niacinamide) using 2 wt. %, which lies within and thus renders obvious the instantly claimed range, as a starting point for routine optimization of the composition taught by the combination of US ‘278 claims, Pan, and Koerbaecher because Pan teaches that 2 wt. % is suitable for formulating cosmetic compositions comprising polydatin, niacinamide, and water that are applied to the skin. Regarding instant claims 11-13: The weight ratio of polydatin to chlorogenic acid in the composition taught by the combination of US ‘072 claims, Koerbaecher, and Pan, which equals approximately 0.7 to 1, lies within and thus renders obvious the range recited in instant claim 11. The weight ratio of polydatin to nicotinamide, which equals 0.5, lies within and thus renders obvious the range recited in instant claim 12. The weight ratio of nicotinamide to chlorogenic acid, which equals approximately 1.3 to 2, lies within and thus renders obvious the range recited in instant claim 13. Regarding instant claim 14: It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the composition taught by the combination of US ‘278 claims, Pan, and Koerbaecher such that it is in the form of an O/W emulsion. One of ordinary skill in the art would have been motivated to use the form of O/W emulsion because Pan teaches that polydatin allows the formation of clear and stable microemulsions that are unable to phase separate (Pan, Paragraph 0086), which is desirable when formulation cosmetic compositions. One of ordinary skill in the art would have a reasonable expectation of success in modifying the composition recited in the claims of US ‘278 as proposed because Koerbaecher teaches that chlorogenic acid can be used in oil-in-water cosmetic or dermatological preparations, particularly in combination with other antioxidants including stilbenes. Further, the antioxidative effects of chlorogenic acid are consistent with the intended outcomes of applying the formulation recited in the claims of US ‘278, which include strengthening skin's natural antioxidant defenses. Response to Arguments Applicant’s arguments submitted on 03/13/2026 with respect to rejections on the grounds of non-statutory double patenting have been fully considered, but were not found to be persuasive. Applicant argues that the double patenting rejections should be reconsidered because the amended claims now specifically require chlorogenic acid and niacinamide, narrowing the scope of the claimed invention. However, because the claims of US ‘072 and the claims of US ‘278, when respectively combined with the cited prior art references, render obvious all features of the instant claims, the double patenting rejections are maintained. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SARAH CLINKSCALES WISTNER whose telephone number is (571)270-7715. The examiner can normally be reached Monday - Thursday 8:00 AM - 5:00 PM ET. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Sue Liu can be reached at (571)272-5539. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SARAH C WISTNER/Examiner, Art Unit 1616 /Mina Haghighatian/Primary Examiner, Art Unit 1616
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Prosecution Timeline

Feb 15, 2023
Application Filed
May 28, 2025
Non-Final Rejection — §103, §112, §DP
Aug 29, 2025
Response Filed
Dec 19, 2025
Final Rejection — §103, §112, §DP
Mar 13, 2026
Request for Continued Examination
Mar 18, 2026
Response after Non-Final Action
Apr 07, 2026
Non-Final Rejection — §103, §112, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Hybrid membrane camouflaged nanomedicine loaded with oxidative phosphorylation inhibitor and preparing method thereof
2y 5m to grant Granted Jul 01, 2025
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2y 5m to grant Granted Jun 17, 2025
Patent 12285539
HEMOSTATIC COMPOSITIONS AND RELATED METHODS
2y 5m to grant Granted Apr 29, 2025
Study what changed to get past this examiner. Based on 3 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
21%
Grant Probability
89%
With Interview (+68.3%)
3y 10m
Median Time to Grant
High
PTA Risk
Based on 19 resolved cases by this examiner. Grant probability derived from career allow rate.

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