Prosecution Insights
Last updated: October 04, 2026
Application No. 18/294,494

PROCESS FOR POLYAMIDE SYNTHESIS

Non-Final OA §102§112
Filed
Feb 01, 2024
Priority
Aug 04, 2021 — provisional 63/229,235 +1 more
Examiner
PECKHAM, RICHARD GRANT
Art Unit
1627
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Design Therapeutics Inc.
OA Round
1 (Non-Final)
68%
Grant Probability
Favorable
1-2
OA Rounds
7m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allowance Rate
92 granted / 135 resolved
+8.1% vs TC avg
Strong +35% interview lift
Without
With
+35.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
69 currently pending
Career history
188
Total Applications
across all art units

Statute-Specific Performance

§101
2.9%
-37.1% vs TC avg
§103
28.8%
-11.2% vs TC avg
§102
16.1%
-23.9% vs TC avg
§112
30.3%
-9.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 135 resolved cases

Office Action

§102 §112
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 . Detailed Action Claims 42-48 are currently pending. Election/Restriction Applicant’s election without traverse of Group III (Claims 42 and now 43-48, drawn to polyamides) and the elected species PNG media_image1.png 104 307 media_image1.png Greyscale in the reply filed on 8/06/2026 is acknowledged. Claims 44-45 and 47-48 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to unelected species, there being no allowable generic or linking claim. Thus, Claims 42-43 and 46 are being examined on the merits herein. The requirement is deemed proper and is therefore made final. Specification The specification is objected to because the titular compound of Step 11 in Para 170 recites “affordamido”. It appears that this group should instead be “amido” and that the word “afford” was mistakenly inserted within the long chemical name. The objection is made on the following grounds: the preceding intermediate of Step 10 recites PNG media_image2.png 22 259 media_image2.png Greyscale instead of PNG media_image3.png 20 326 media_image3.png Greyscale , the compounds only differing by a methyl rather than any amide-type functional group. Further, the starting material of subsequent Step 12, which should be the same as that intermediate formed in Step 11, uses the following to refer to said starting material/Step 11 compound: PNG media_image4.png 19 282 media_image4.png Greyscale . Further, “affordamido” has no apparent chemical meaning. Appropriate correction throughout the specification is required for each instance of this misnaming. (See also Para 171 at least.) Claim Rejections - 35 USC § 112(a) The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claim 42 is rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 42 includes the following compounds: PNG media_image5.png 86 567 media_image5.png Greyscale . Only the methyl ester versions of the above compounds are disclosed before applicant’s amendments filed 9/16/2024. Intermediate 36 is described as follows on Page 6 of the specification: PNG media_image6.png 70 252 media_image6.png Greyscale wherein PNG media_image7.png 21 147 media_image7.png Greyscale . However, no specific embodiment supports the claimed acid intermediates. Again, only methyl ester versions are disclosed in Scheme 1 of the specification on Page 56: PNG media_image8.png 53 351 media_image8.png Greyscale , whereas the carboxylic acid forms of the specific intermediates lack support before the above date. Therefore, applicant did not have possession of the scope of the claimed invention at the time of filing. This is a new matter situation. It is noted, however, that the following compounds PNG media_image9.png 297 328 media_image9.png Greyscale are all supported by the disclosure of the earliest provisional application: US Prov. App. No. 63229235 filed 08/04/2021 (See Para 169). 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. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 42-43 and 46 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Ansari (WO2021158707, published 8/12/2021, filed 2/03/2021, claiming priority to US Provisional App. Nos. 62/969,644 and 63/135,476 which are filed 2/03/2020 and 1/08/2021, respectively; 6/16/2025 IDS). 102(a)(2): The applied reference has a common assignee, applicant, and/or joint inventor with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Ansari teaches Methyl 4-[4-(3-aminopropanamido)-1-methylimidazole-2-amido]-1-methylpyrrole-2-carboxylate hydrochloride or PNG media_image10.png 45 156 media_image10.png Greyscale as claimed (Page 99, Step 5; See Page 97, Scheme 1). Ansari also teaches the following compounds: Methyl 1-methyl-4-[1-methyl-4-(3-[[1-methyl-4-(1-methylimidazole 2-amido)pyrrol-2-yl]formamido]propanamido)imidazole-2-amido]pyrrole-2-carboxylate PNG media_image11.png 81 228 media_image11.png Greyscale and, the elected species, 1-methyl-4-[1-methyl-4-(3-[[1-methyl-4-(1-methylimidazole-2-amido)pyrrol-2-yl]formamido]propanamido)imidazole-2-afford[sic]amido]pyrrole-2-carboxylic acid PNG media_image12.png 78 223 media_image12.png Greyscale (Pages 100-101, Steps 10-11; See Page 97, Scheme 1). Claims 42-43 and 46 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Jeffries (WO 2022126000, published 6/16/2022, filed 12/11/2021, claiming priority to US Provisional App. No. 63/124,592 which is filed 12/11/2020). 102(a)(2): The applied reference has a common assignee, applicant, and/or joint inventor with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Jeffries teaches Methyl 4-[4-(3-aminopropanamido)-1-methylimidazole-2-amido]-1-methylpyrrole-2-carboxylate hydrochloride (INT60-022-201) or PNG media_image10.png 45 156 media_image10.png Greyscale as claimed (Page 214, Step 5; See Page 213, Scheme 25). Jeffries also teaches the following compounds: methyl 1-methyl-4-[1-methyl-4-(3-[[1-methyl-4-(1-methylimidazole 2-amido)pyrrol-2-yl]formamido]propanamido)imidazole-2-amido]pyrrole-2-carboxylate (INT61-001-102) PNG media_image11.png 81 228 media_image11.png Greyscale and, the elected species, 1-methyl-4-[1-methyl-4-(3-[[1-methyl-4-(1-methylimidazole-2-amido)pyrrol-2-yl]formamido]propanamido)imidazole-2-afford[sic]amido]pyrrole-2-carboxylic acid (INT61-001-103) PNG media_image12.png 78 223 media_image12.png Greyscale (Page 219, Steps 5-6; See Page 217, Scheme 26). Claims 42-43 and 46 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Shah (WO2022150555, published 7/14/2022, filed 1/07/2022, claiming priority to US Provisional App. No. 63/135,427 which is filed 1/08/2020). 102(a)(2): The applied reference has a common assignee, applicant, and/or joint inventor with the instant application. Based upon the earlier effectively filed date of the reference, it constitutes prior art under 35 U.S.C. 102(a)(2). This rejection under 35 U.S.C. 102(a)(2) might be overcome by: (1) a showing under 37 CFR 1.130(a) that the subject matter disclosed in the reference was obtained directly or indirectly from the inventor or a joint inventor of this application and is thus not prior art in accordance with 35 U.S.C. 102(b)(2)(A); (2) a showing under 37 CFR 1.130(b) of a prior public disclosure under 35 U.S.C. 102(b)(2)(B) if the same invention is not being claimed; or (3) a statement pursuant to 35 U.S.C. 102(b)(2)(C) establishing that, not later than the effective filing date of the claimed invention, the subject matter disclosed in the reference and the claimed invention were either owned by the same person or subject to an obligation of assignment to the same person or subject to a joint research agreement. Shah teaches Methyl 4-[4-(3-aminopropanamido)-1-methylimidazole-2-amido]-1-methylpyrrole-2-carboxylate hydrochloride or PNG media_image10.png 45 156 media_image10.png Greyscale as claimed (Page 175, Step 5; See Page 173, Scheme 1). Shah also teaches the following compounds: methyl 1-methyl-4-[1-methyl-4-(3-[[1-methyl-4-(1-methylimidazole 2-amido)pyrrol-2-yl]formamido]propanamido)imidazole-2-amido]pyrrole-2-carboxylate PNG media_image11.png 81 228 media_image11.png Greyscale and, the elected species, 1-methyl-4-[1-methyl-4-(3-[[1-methyl-4-(1-methylimidazole-2-amido)pyrrol-2-yl]formamido]propanamido)imidazole-2-afford[sic]amido]pyrrole-2-carboxylic acid PNG media_image12.png 78 223 media_image12.png Greyscale (Page 176-177, Steps 10-11; See Page 173, Scheme 1). Conclusion No claim is allowable. Inquiries Any inquiry concerning this communication or earlier communications from the examiner should be directed to Richard G. Peckham whose telephone number is (703)756-4621. The examiner can normally be reached 8:30am - 4:30pm EST. 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 on (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. /RICHARD GRANT PECKHAM/Examiner, Art Unit 1627
Read full office action

Prosecution Timeline

Feb 01, 2024
Application Filed
Nov 26, 2024
Response after Non-Final Action
Sep 02, 2026
Non-Final Rejection mailed — §102, §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
68%
Grant Probability
99%
With Interview (+35.1%)
3y 3m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 135 resolved cases by this examiner. Grant probability derived from career allowance rate.

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