Prosecution Insights
Last updated: August 18, 2026
Application No. 17/558,540

METHOD FOR PRODUCING PEPTIDE COMPOUND, PROTECTIVE GROUP-FORMING REAGENT, AND CONDENSED POLYCYCLIC AROMATIC HYDROCARBON COMPOUND

Final Rejection §112
Filed
Dec 21, 2021
Priority
Jun 28, 2019 — JP 2019-122431 +1 more
Examiner
BAHTA, MEDHANIT W
Art Unit
1692
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Fujifilm Holdings Corporation
OA Round
4 (Final)
80%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
633 granted / 786 resolved
+20.5% vs TC avg
Strong +29% interview lift
Without
With
+28.8%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
39 currently pending
Career history
826
Total Applications
across all art units

Statute-Specific Performance

§101
1.4%
-38.6% vs TC avg
§103
40.2%
+0.2% vs TC avg
§102
15.7%
-24.3% vs TC avg
§112
29.2%
-10.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 786 resolved cases

Office Action

§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 . Status of the Claims The amendment filed on 06/01/2026 has been entered. Claim 14 has been amended and claims 21-24 have been newly added. Thus claims 14, 17-18 and 21-24 are currently pending and under examination. Withdrawn Rejection The 112(a) rejection is herein withdrawn in view of the amendment for the term substituent in claim 14. Claim 14 has further been amended in which the RA limitation (see below) has been incorporated in a format that it now refers to both formulas (10a) and (20a). Neither Ishigaki nor Suzuki teach every limitation of amended claim 14 and thus the 102(a)(1) rejections have been withdrawn. Claim Rejections - 35 USC § 112 – Indefiniteness 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 14 and 17-18 stand rejected and claims 21-24 are newly 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. Regarding claims 14 and 18, RA is selected from formulas (f1), (a1), (b1), (e1) and (f2), and requires that the number of carbon atoms in an aliphatic hydrocarbon group in at least on RA is 18 or more, however the R groups in formulas (f1), (a1), (b1), (e1) and (f2) encompass carbon atoms that is outside the range of the aliphatic hydrocarbon with carbon atoms of 18 or more, specifically: (f1) R9 = a divalent hydrocarbon group, and R10 = a monovalent aliphatic hydrocarbon group having 5 or more carbon atoms; (a1) R20 = a divalent aliphatic hydrocarbon group having 5 or more carbon atoms; (b1) Rb3 represents an aliphatic hydrocarbon group having 5 or more carbon atoms; (e1) Re2 = a methyl group or an organic hydrocarbon group having an aliphatic hydrocarbon group having 5 or more carbon atoms; (f2) R10 = a monovalent aliphatic hydrocarbon group having 5 or more carbon atoms. As such, there is a lack of antecedent basis for the above R groups of formulas (f1), (a1), (b1), (e1) and (f2) with carbon atoms that are not encompassed by carbon atoms of 18 or more. Claims 17-18 and 21-24 are also rendered indefinite for their dependency on claim 14. Response to Arguments Applicant argues that limitation 5 or more carbon atoms mathematically encompasses an aliphatic group of 18 or more carbon atoms and that there is no provision that excludes the aliphatic hydrocarbon group in (f1), (a1), (e1) and (f2) from having 18 or more carbon atoms. The examiner disagrees. The aliphatic groups in (f1), (a1), (e1) and (f2) encompasses carbon atoms that is outside the range of RA’s carbon atoms of 18 or more, i.e. less than 18 carbon atoms. Specifically, (f1) R9 = a divalent hydrocarbon group encompasses any divalent hydrocarbon groups that include less than 18 carbon atoms, and R10 = a monovalent aliphatic hydrocarbon group having 5 or more carbon atoms encompasses any monovalent aliphatic hydrocarbon groups that also include 5 to 17 carbon atoms; (a1) R20 = a divalent aliphatic hydrocarbon group having 5 or more carbon atoms encompasses any divalent aliphatic hydrocarbon groups that also include 5 to 17 carbon atoms; (b1) Rb3 represents an aliphatic hydrocarbon group having 5 or more carbon atoms encompasses any aliphatic hydrocarbon groups that also include 5 to 17 carbon atoms; (e1) Re2 = a methyl group or an organic hydrocarbon group having an aliphatic hydrocarbon group having 5 or more carbon atoms encompasses 1 carbon atom (methyl) or any aliphatic hydrocarbon groups that also include 5 to 17 carbon atoms; (f2) R10 = a monovalent aliphatic hydrocarbon group having 5 or more carbon atoms encompasses any aliphatic hydrocarbon groups that also include 5 to 17 carbon atoms. In view of the foregoing, the examiner maintains that there is a lack of antecedent basis for any range of carbon atoms not encompassed by RA’s carbon atoms of 18 or more. Allowable Subject Matter Regarding formula (10a), the closest prior art references are Ishigaki (Ishigaki, Y. et al. “Three-way output molecular response system based on tetrakis(3,4-dialkoxyphenyl)-3,4-dihydro[5]helicenes: Perturbation of properties by long alkyl chains” HETEROCYCLES, Vol. 90, No. 1, 2015; cited in PTO-892 02/12/2026) and Suzuki (Suzuki, T. et al. “Multi-Input/Multi-Output Molecular Response System Based on the Dynamic Redox Behavior of 3,3,4,4-Tetraaryldihydro[5]helicene Derivatives: Reversible Formation/Destruction of Chiral Fluorophore and Modulation of Chiroptical Properties by Solvent Polarity” Chem. Eur. J. 2009, 15, 9434-9441; cited in PTO-892 02/12/2026). Ishagaki teaches compounds 7b and 7c that are species of formula (10a) (Scheme 4, pg. 128): PNG media_image1.png 168 155 media_image1.png Greyscale PNG media_image2.png 17 167 media_image2.png Greyscale In the above, - R11 = formula (10a-A) - YB = OH - R100 = aryl group PNG media_image3.png 65 59 media_image3.png Greyscale - Rs = alkoxy group (-OR, wherein R = n-C8H17 or n-C16H33) - n10 = 2 - R10 = RA an organic group PNG media_image4.png 173 125 media_image4.png Greyscale having an aliphatic hydrocarbon with 62 carbon atoms (alkyl is C16H31) or 32 carbon atoms (alkyl is C8H15) - R12 to R17 = hydrogen Suzuki teaches compounds 6b and 6c that are species of formula (10a) (Scheme 3, pg. 9436): PNG media_image5.png 84 136 media_image5.png Greyscale PNG media_image6.png 28 81 media_image6.png Greyscale In the above, - R11 = formula (10a-A) - YB = OH - R100 = aryl group Ar = PNG media_image7.png 45 136 media_image7.png Greyscale - Rs = alkoxy group (-OnCnH2n+1) having an aliphatic hydrocarbon with 16 carbon atoms (alkyl is C16H31) or 8 carbon atoms (alkyl is C8H15) - n10 = 1 - R10 = RA an organic group PNG media_image8.png 129 62 media_image8.png Greyscale having an aliphatic hydrocarbon with 32 carbon atoms (alkyl is C16H31) or 16 carbon atoms (alkyl is C8H15) (Ar = PNG media_image7.png 45 136 media_image7.png Greyscale ). - R12 to R17 = hydrogen However, neither Ishigaki nor Suzuki teaches RA as being represented by any of formula (f1), (a1), (b1) or (e1) as instantly claimed. Regarding formula (20a), the closest prior art references are Nuckolls (Nuckolls, C. et al. “Synthesis and Aggregation of a Conjugated Helical Molecule” Journal American Chemical Society (1999) 121 (1) 79–88, Supporting Information pages S1-S39). Nuckolls teaches the following compound on page S18: PNG media_image9.png 162 139 media_image9.png Greyscale In the above, - R21 = formula (20a-A) PNG media_image10.png 61 34 media_image10.png Greyscale - YB = OH - R200 = hydrogen - R201 = aliphatic hydrocarbon - R20 = hydrogen - R22,25,27 = hydrogen - R23,24 = RA alkoxy group (-OC12H25) having an aliphatic hydrocarbon with 12 carbon atoms - R26 = alkyl group PNG media_image11.png 55 29 media_image11.png Greyscale However, the reference fails to teach that RA has aliphatic group with carbon atoms of 18 or more. Furthermore, there is no suggestion in the above references to modify the above compounds to reasonably arrive at the instantly claimed invention. Accordingly, the instantly claimed condensed polycyclic aromatic hydrocarbon compound represented by any of Formula (10a) or (20a) are not obvious over the teachings of Ishigaki, Suzuki or Nuckolls. Conclusion Claims 14, 17-18 and 21-24 are rejected. Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MEDHANIT W BAHTA whose telephone number is (571)270-7658. The examiner can normally be reached Monday-Friday 8am-5pm. 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, Scarlett Goon can be reached at 571-270-5241. 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. /MEDHANIT W BAHTA/Primary Examiner, Art Unit 1692
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Prosecution Timeline

Show 2 earlier events
Jul 07, 2025
Response Filed
Sep 04, 2025
Final Rejection mailed — §112
Jan 20, 2026
Response after Non-Final Action
Feb 03, 2026
Request for Continued Examination
Feb 05, 2026
Response after Non-Final Action
Feb 12, 2026
Non-Final Rejection mailed — §112
Jun 01, 2026
Response Filed
Jul 30, 2026
Final Rejection mailed — §112 (current)

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Prosecution Projections

5-6
Expected OA Rounds
80%
Grant Probability
99%
With Interview (+28.8%)
2y 0m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 786 resolved cases by this examiner. Grant probability derived from career allowance rate.

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