Prosecution Insights
Last updated: October 04, 2026
Application No. 18/227,103

NOVEL COMPOUNDS

Non-Final OA §102§112
Filed
Jul 27, 2023
Priority
Jul 28, 2022 — EU 22 187 634.5 +1 more
Examiner
FETTEROLF, BRANDON J
Art Unit
1626
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Ac Immune SA
OA Round
3 (Non-Final)
52%
Grant Probability
Moderate
3-4
OA Rounds
4m
Est. Remaining
69%
With Interview

Examiner Intelligence

Grants 52% of resolved cases
52%
Career Allowance Rate
115 granted / 221 resolved
-8.0% vs TC avg
Strong +17% interview lift
Without
With
+17.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
64 currently pending
Career history
269
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
28.6%
-11.4% vs TC avg
§102
21.0%
-19.0% vs TC avg
§112
27.6%
-12.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 221 resolved cases

Office Action

§102 §112
DETAILED ACTION 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 8/20/2026 has been entered. Claims 4, 6-20, 22-23, 26-29 and 31-48 are currently pending. Claims 22-23, 26-29 and 41-46 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected invention, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on 1/05/2026. The election filed on 1/05/2026 in response to the Restriction Requirement of 11/13/2026. Applicants elected, with traverse, Group 1, claims 1-20 and 31, drawn to a compound having the formula (I’) and the following compound as the species: PNG media_image1.png 84 232 media_image1.png Greyscale . A search of the prior art did not identify any publications which anticipate or render obvious the elected species. The examiner has expanded the search to encompass the compounds of claim 19, a subgenus of the elected species, specifically that recited in claim 10, having the following formula PNG media_image2.png 135 390 media_image2.png Greyscale and compounds of formula II’a (Claim 6): PNG media_image3.png 143 415 media_image3.png Greyscale wherein X’ is specifically limited to N and found these compounds to be free of the prior art. Accordingly, the examiner has moved onto the next species which reads on the genus of claim 4 read on the next species. Claims 4, 6, 8, 10, 13-20, 31-40 and 47-48 are currently under consideration. Claims 7, 9 and 11-12 are withdrawn from consideration as being drawn to non-elected species not encompassed by the expanded search. Rejections Withdrawn: The rejection of Claims 34-38 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 is withdrawn in view of Applicants amendment. The rejection of Claim 11 under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends is withdrawn in view of Applicants amendment. The rejection of Claim(s) 4 and 8 under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry No: 1507839-10-2 (2013-12-31) is withdrawn in view of Applicants amendments to claim 4. The rejection of Claim(s) 4 and 8 under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry No: 1508783-52-5 (2014-01-01) is withdrawn in view of Applicants amendments to claim 4. The rejection of Claim(s) 4 and 8 under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry No: 1503936-21-7 (2013-12-26) is withdrawn in view of Applicants amendment to claim 4. New Rejections Necessitated by the amendment: Claim Rejections - 35 USC § 112 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. Claim 48 is 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 claim 48, claim 48 recites specific compounds having the formula: PNG media_image4.png 81 182 media_image4.png Greyscale or a stereoisomer or a racemic mixture thereof. In the instant case, this is confusing since the compound is a specific stereoisomer. Claim Rejections - 35 USC § 102 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 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) 4, 8, 13-18, and 31 are is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry No: 1964996-02-8 (2016-08-02). CAS Registry No: 1964996-02-8 has the structure: PNG media_image5.png 115 294 media_image5.png Greyscale which reads on instant claim 4 wherein Y is N, R3 is a C1-C6 alkyl, specifically a Me or PNG media_image6.png 56 53 media_image6.png Greyscale wherein n=0, R0 is a H, R1 is a halo and R2 is an OH. Note: Claim 31 has been included in the rejection since claim 31 recites an intended use of the compound as an analytical reference or an invitro screening tool comprising the compound of claim 4. However, the claims do not recite any additional ingredients within the composition which would result in a structural difference between the claimed invention and the prior art. Claim(s) 4, 8, 13-18, and 31 are is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry No: 1965000-08-1 (2016-08-02). CAS Registry No: 1965000-08-1 has the structure: PNG media_image7.png 115 314 media_image7.png Greyscale which reads on instant claim 4 wherein Y is O, R3 is a C1-C6 alkyl, specifically PNG media_image6.png 56 53 media_image6.png Greyscale wherein n=1, R0 is H, R1 is a halo, and R2 is OH. Note: Claim 31 has been included in the rejection since claim 31 recites an intended use of the compound as an analytical reference or an invitro screening tool comprising the compound of claim 4. However, the claims do not recite any additional ingredients within the composition which would result in a structural difference between the claimed invention and the prior art. Claim(s) 4, 8, 13-18, and 31 are is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry No: 2555174-15-5 (2020-12-10). CAS Registry No: 2555174-15-5 has the structure: PNG media_image8.png 131 292 media_image8.png Greyscale which reads on instant claim 4 wherein Y is O, R3 is a C1-C6 alky, specifically a Me or PNG media_image6.png 56 53 media_image6.png Greyscale wherein n=0, R0 is halo, R1 is a halo, and R2 is OH. Note: Claim 31 has been included in the rejection since claim 31 recites an intended use of the compound as an analytical reference or an invitro screening tool comprising the compound of claim 4. However, the claims do not recite any additional ingredients within the composition which would result in a structural difference between the claimed invention and the prior art. In order to expedite prosecution, the Examiner would like to point out the following rejections that could be made once the claims are under consideration. Claim Rejections - 35 USC § 112 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. Claim 11 is 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 claim 11, claim 11 which recites the formula PNG media_image9.png 125 357 media_image9.png Greyscale has been amended to depend from claim 7 which recites the formula PNG media_image10.png 126 331 media_image10.png Greyscale . As such, there is insufficient antecedent basis for this limitation in the claim. Conclusion Claims 4, 8, 13-18, 31 and 48 are rejected. Claims 6, 10, 19-20, 33-40 and 47 are free of the prior art and in condition for allowance. Claim 32 is 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. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRANDON J FETTEROLF whose telephone number is (571)272-2919. The examiner can normally be reached M-F 6AM-4PM. 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, Jeffrey S Lundgren can be reached at 571-272-5541. 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. BRANDON J. FETTEROLF, PHD Primary Patent Examiner Art Unit 1626 /BRANDON J FETTEROLF/ Primary Examiner, Art Unit 1626
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Prosecution Timeline

Jul 27, 2023
Application Filed
Feb 06, 2026
Non-Final Rejection mailed — §102, §112
May 06, 2026
Response Filed
May 21, 2026
Final Rejection mailed — §102, §112
Jul 21, 2026
Response after Non-Final Action
Aug 20, 2026
Request for Continued Examination
Aug 24, 2026
Response after Non-Final Action
Sep 24, 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

3-4
Expected OA Rounds
52%
Grant Probability
69%
With Interview (+17.4%)
3y 6m (~4m remaining)
Median Time to Grant
High
PTA Risk
Based on 221 resolved cases by this examiner. Grant probability derived from career allowance rate.

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