Prosecution Insights
Last updated: October 23, 2026
Application No. 18/867,144

PEPTIDYL FLAVOR MODIFIERS

Non-Final OA §102§103§112
Filed
Nov 19, 2024
Priority
May 19, 2022 — provisional 63/343,745 +1 more
Examiner
REILLY, SOPHIA JANE
Art Unit
1627
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Ohio State University
OA Round
1 (Non-Final)
60%
Grant Probability
Moderate
1-2
OA Rounds
1y 4m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 60% of resolved cases
60%
Career Allowance Rate
48 granted / 80 resolved
At TC average
Strong +49% interview lift
Without
With
+49.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
45 currently pending
Career history
125
Total Applications
across all art units

Statute-Specific Performance

§101
2.6%
-37.4% vs TC avg
§103
33.3%
-6.7% vs TC avg
§102
17.9%
-22.1% vs TC avg
§112
26.7%
-13.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 80 resolved cases

Office Action

§102 §103 §112
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 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 97-98 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. Claims 97-98 recite the limitation “n”. There is insufficient antecedent basis for this limitation in the claim. For the purposes of applying art, “n” is interpreted as “nr”. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 94-95, 97, 99-101, 103, 106-107, are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Suli-Vargha et. al.1 Regarding instant claims 94-95, 97, 99-101, 103, 106-107, and a compound, Suli-Vargha teaches Compound 4, also known as CAS# 1001920-27-9 (see Suli-Vargha at p. 747 Scheme 1). Suli-Vargha Compound 4 CAS# 1001920-27-9 Instant Claim 95 Formula PNG media_image1.png 148 278 media_image1.png Greyscale PNG media_image2.png 134 286 media_image2.png Greyscale CAS# 1001920-27-9 reads on the formula of claim 95 when X is null, Rr is PNG media_image3.png 102 146 media_image3.png Greyscale , n is 0, Gr is H, R1 is PNG media_image4.png 90 138 media_image4.png Greyscale , n1 is 1, G1 is H, R2 is PNG media_image5.png 88 148 media_image5.png Greyscale , n2 is 0, G2 is H, Rt is Rt*, Rt* is NH2. Claim(s) 94-97, 99, 103, 106 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Nam et. al.2 Regarding instant claims 94, 95, 96, 97, 99, 103, 106, and a compound, Nam teaches Compound 4, also known as CAS# 714272-02-3 (see Nam at p. 3132 Figure 2). Nam Compound 4 CAS# 714272-02-3 Instant Claim 96 Formula 2f PNG media_image6.png 122 242 media_image6.png Greyscale PNG media_image7.png 134 274 media_image7.png Greyscale CAS# 714272-02-3 reads on instant Formula 2f when X is CH2, Rr is PNG media_image8.png 48 66 media_image8.png Greyscale and nr is 0 and Gr is C6-10 aryl specifically phenyl substituted with OPO3H2 (see instant spec. at p. 14 lines 4-17, especially “Unless otherwise specified, each instance of an aryl group is independently unsubstituted…or substituted”), R1 is PNG media_image9.png 50 84 media_image9.png Greyscale and n1 is 2 and G1 is COOH, R2 is PNG media_image10.png 46 78 media_image10.png Greyscale and n2 is 0 and G2 is C4 alkyl specifically sec-butyl, and Rt is Rt* and Rt* is OH. 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. Claim 98 is rejected under 35 U.S.C. 103 as being unpatentable over Suli-Vargha as applied to claims 94-95, 97, 99-101, 103, 106-107 above. The prior art differs from the instant claims as follows: While Suli-Vargha teaches CAS# 1001920-27-9, CAS# 1001920-27-9 does not have an alkyl at the Gr position as in instant claim 98. However, Suli-Vargha teaches transformation to the diazepine ring occurs with not only glycine residues as in CAS# 1001920-27-9, but also with alanine and leucine residues, amino acids with alkyl groups at the R position (see Suli-Vargha at p. 747 Scheme 1 and p. 745 Table 1), corresponding with instant Rr wherein nr is 0 and Gr is C1-4 alkyl. Suli-Varga Aspartimide Peptide Transformation Genus Instant Claim 95 Formula Instant Rr PNG media_image11.png 98 220 media_image11.png Greyscale PNG media_image12.png 140 282 media_image12.png Greyscale PNG media_image13.png 50 74 media_image13.png Greyscale Therefore, it would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to arrive at the instantly claimed invention with a reasonable expectation of success in view of the prior art for at least the following reason(s): Regarding H for Me, per MPEP § 2144.08(II)(A)(4)(c), the closer the physical and/or chemical similarities between the claimed species or subgenus and any exemplary species or subgenus disclosed in the prior art, the greater the expectation that the claimed subject matter will function in an equivalent manner to the genus. In instant case, CAS# 1001920-27-9 differs only from claim 98 in a change of H for Me. Moreover, the prior art suggests a C1-4 alkyl at the R position by teaching the ring residue may be alanine (R = methyl) or leucine (R = isobutyl). It would have been obvious to substitute a methyl or isobutyl for H in the structure above as this is specifically contemplated by the reference to be a feasible alternative. Furthermore, it is well-within the ordinary skill in art to incorporate a short-chain alkyl group in lieu of hydrogen. Therefore, an artisan would arrive at the same invention as presently claimed for reasons taught in the prior art. Claim 96 is rejected under 35 U.S.C. 103 as being unpatentable over Suli-Vargha as applied to claims 94-95, 97, 99-101, 103, 106-107 above and in further view of Neuberger et. al.3 The prior art differs from the instant claims as follows: While Suli-Vargha teaches CAS# 1001920-27-9, the stereochemistry of CAS# 1001920-27-9 is not shown. However, Regarding claim 96 and stereochemistry, Neuberger teaches asymmetric compounds have molecular rotations (see Neuberger at p. 310 “5. Effect of Substitution on Molecular Rotation”). Optically active amino acids contain only one hydrogen atom in the α-position (see Neuberger at p. 343). The majority of amino acids have chiral centers (see e.g., Neuberger at p. 304 Table III, p. 305 Table IV, p. 307 Table VI), notably not glycine (see Neuberger at p. 343). Racemization of amino acids to covert between stereoisomers is known (see Neuberger at pp. 339-343). Therefore, it would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to arrive at the instantly claimed invention with a reasonable expectation of success in view of the prior art for at least the following reason(s): An artisan would readily appreciate that since CAS# 1001920-27-9 comprises amino acids with chiral centers, it must fall under one of the stereochemistry orientations depicted in claim 96 since claim 96 lists all potential stereochemical orientations (for each of the four (4) chiral centers in the sequence, both (2) orientations are considered, 42 = 16 formulas). Moreover, an artisan could readily make any stereoisomer variant of CAS# 1001920-27-9, because converting between stereocenters in amino acids is known (as taught by Neuberger). Furthermore, it is well-within the ordinary skill in art to: appreciate the stereochemistry of amino acids in a known molecule comprising amino acids, and/or make a stereoisomer variant of a known compound. Therefore, an artisan would arrive at the same invention as presently claimed for reasons taught in the prior art. Claims 108-113 are rejected under 35 U.S.C. 103 as being unpatentable over Suli-Vargha as applied to claims 94-95, 97, 99-101, 103, 106-107 above and in further view of FI 122054 B to Silfverberg et. al.4 The prior art differs from the instant claims as follows: While Suli-Vargha teaches the small molecule peptide CAS# 1001920-27-9, Suli-Vargha does not specify a consumable milk product. However, Regarding instant claims 108-113 and a consumable product or method of modulating flavor of a consumable product, Silfverberg teaches the addition of small molecule peptides in a dairy product, reading on instant consumable product, to prevent the oxidation of sterol and stanol fatty acid esters, improving the taste, reading on instant modulating flavor (see SilfverbergT at ¶[14946] and ¶[14958]). Further regarding instant claims 108, 112 and amounts, Silfverberg teaches the amount of biologically active peptide in the dairy product may be 0.5-25 mg / 100 g of product (see SilfverbergT at ¶[14957]). Converting to the instant units of mg/kg the prior art range becomes: 0.5   m g   p e p t i d e 100   g   p r o d u c t   x   1000   g   p r o d u c t k g   p r o d u c t = 5   m g / k g 25   m g   p e p t i d e 100   g   p r o d u c t   x   1000   g   p r o d u c t k g   p r o d u c t = 250   m g / k g 5-250 mg/kg, which overlaps with instant 0.001-25 mg/kg. Further regarding claims 109-110 and a milk product, Silfverberg teaches mixing with milk materials such as whole milk and skim milk (see SilfverbergT at ¶[14967]), reading on instant cow milk, or fermented dairy products such as yogurt (see SilfverbergT at ¶[14955]). Therefore, it would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to arrive at the instantly claimed invention with a reasonable expectation of success in view of the prior art for at least the following reason(s): Regarding a consumable milk product, per MPEP § 2143(I)(A), a prima facie case of obviousness exists for combining prior art elements according to known methods to yield predictable results. It would have been obvious to an artisan to incorporate a known small molecule peptide such as CAS# 1001920-27-9 (as taught by Suli-Vargha) into a known method for modulating flavor of a milk product (as taught by Silfverberg), because the prior art teaches the method is suitable for small molecule peptides (as taught by Silfverberg). Regarding overlapping ranges, per MPEP §2144.05(I), in the case where the claimed ranges "overlap or lie inside ranges disclosed by the prior art" a prima facie case of obviousness exists. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). The prior art teaches a range (5-250 mg/kg) which significantly overlaps with instant (0.001-25 mg/kg). Accordingly an artisan could readily arrive at a concentration encompassed by the instant claims. Furthermore, it is well-within the ordinary skill in art to select a known small molecule peptide for use in a known method comprising a small molecule peptide for the same purpose as taught by the prior art. Therefore, an artisan would arrive at the same invention as presently claimed for reasons taught in the prior art. Claim 102 is rejected under 35 U.S.C. 103 as being unpatentable over Nam as applied to claims 94-97, 99, 103, 106 above in view of Betts et. al.5 The prior art differs from the instant claims as follows: While Nam teaches CAS# 714272-02-3, CAS# 714272-02-3 differs from claim 102 in R2. However, CAS# 714272-02-3 R2 corresponds with an isoleucine residue, wherein R is a sec-butyl group. If the isoleucine residue were its structural isomer leucine, the structure would read on claim 102 because R2 would be PNG media_image10.png 46 78 media_image10.png Greyscale , n2 would be 1 and G2 would be C3 alkyl. Betts teaches isoleucine and leucine are both hydrophobic aliphatic amino acids (see Betts at p. 319), and are substitutable amino acids (see Betts at p. 321 “13.5.2 Isoleucine (Ile, I)” p. 322 “13.5.3 Leucine (Leu, L)”. Therefore, it would have been obvious to one of ordinary skill in the art, before the effective filing date of the claimed invention, to arrive at the instantly claimed invention with a reasonable expectation of success in view of the prior art for at least the following reason(s): Per MPEP § 2143(I)(B), a prima facie case of obviousness exists for simple substitution of one known element for another to obtain predictable results. It would have been obvious to an artisan to substitute the isoleucine residue of CAS# 714272-02-3 (as taught by Nam) with leucine to arrive at a compound wherein n2 is 1, because the prior art teaches they are exchangeable amino acids (as taught by Betts). Furthermore, it is well-within the ordinary skill in art to incorporate leucine in lieu of isoleucine. Therefore, an artisan would arrive at the same invention as presently claimed for reasons taught in the prior art. Allowable Subject Matter Claims 104-105 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The closest prior art to claims 104-105 is U.S. Patent No. 5,369,094 to Schally et. al.6 Schally teaches bombesin antagonists to treat cancerous tumors (see Schally at title and col. 1 lines 19-21) such as PNG media_image14.png 70 694 media_image14.png Greyscale also known as CAS# 163759-30-6 (see Schally at col. 9-10 Peptide No. 17 and at col. 6 “Nomenclature” and col. 4 lines 30-35). CAS# 163759-30-6 Instant Claim 96 Formula 2o PNG media_image15.png 227 346 media_image15.png Greyscale PNG media_image16.png 175 376 media_image16.png Greyscale CAS# 163759-30-6 correlates with formula 2o of claim 96 when X is CH2, Rr is PNG media_image17.png 102 146 media_image17.png Greyscale , n is 1, Gr is C6-10 aryl specifically phenyl, R1 is PNG media_image18.png 90 138 media_image18.png Greyscale , n1 is 1, G1 is C1-10 heteroaryl specifically indole, in other words R1 is PNG media_image19.png 120 104 media_image19.png Greyscale , R2 is PNG media_image20.png 88 148 media_image20.png Greyscale , n2 is 1, G2 is H. Schally teaches compositions comprising the disclosed peptides and a carrier (see Schalley at claim 14). Schally teaches a method of administering an effective dose of a disclosed peptide (see Schalley at claim 15). The prior art differs from the instant claims as follows: While Schally teaches CAS# 163759-30-6, CAS# 163759-30-6 differs from the instantly claimed genus in Rt. Instant Rt may be A3-A4-A5-A6-Rt*, but CAS# 163759-30-6 has an extra amino acid: A3 is valine, A4 is glycine, A5 is histidine, A6 is psi-leucine, “A7” is thiazolidine, Rt* is NH2. Schally does not suggest omitting an amino acid from the peptide sequence, or altering the location of the histidine residue. An artisan would thus not be motivated to alter CAS# 163759-30-6 to arrive at a species of instant claim 104 or 105. Conclusion Claims 94-103, 106-113 are rejected. Claims 104-105 are objected to. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SOPHIA J REILLY whose telephone number is (703)756-5669. The examiner can normally be reached 9:00 am - 5:00 pm EST M-F. 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, KORTNEY KLINKEL can be reached at 571-270-5239. 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. /SOPHIA REILLY/Examiner, Art Unit 1627 1 Cite No. 4 in the IDS filed 11/19/24. Suli-Vargha et. al. "1,4-Diazepine-2,5-dione ring formation during solid phase synthesis of peptides containing aspartic acid β-benzyl ester" J. Pept. Sci. 2007, 13, 742-748. DOI:10.1002/psc.885 2 Nam et. al. "Conformationally Constrained Peptide Analogues of pTyr-Glu-Glu-Ile as Inhibitors of the Src SH2 Domain Binding" J. Med. Chem. 2004, 47, 3131-3141. DOI: 10.1021/jm040008+. Hereinafter Nam. 3 Neuberger et. al. "Stereochemistry of Amino Acids" Advances in Protein Chemistry Vol. 4; Academic Press, 1948; pp. 297-383. DOI: 10.1016/S0065-3233(08)60009-1. Hereinafter Neuberger. 4 Published August 18, 2011. Hereinafter Silfverberg. Machine Translation of FI 122054 B, Translated by Patent Translate Espacenet.org on 10/6/26, 24 pages, hereinafter SilfverbergT. 5 Betts et. al. "Chapter 13 Amino-Acid Properties and Consequences of Substitutions" in Bioinformatics for Geneticists: A Bioinformatics Primer for the Analysis of Genetic Data John Wiley & Sons 2007, pp. 311-342. ISBN 9780470059173. Hereinafter Betts. 6 Patented November 29, 1994. Hereinafter Schally.
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Prosecution Timeline

Nov 19, 2024
Application Filed
Oct 14, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
60%
Grant Probability
99%
With Interview (+49.4%)
3y 3m (~1y 4m remaining)
Median Time to Grant
Low
PTA Risk
Based on 80 resolved cases by this examiner. Grant probability derived from career allowance rate.

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