Prosecution Insights
Last updated: August 16, 2026
Application No. 18/455,029

PYRIMIDIN-2-YL SULFONAMIDE DERIVATIVES

Final Rejection §112§DP
Filed
Aug 24, 2023
Priority
Feb 26, 2021 — EU 21159452.8 +1 more
Examiner
COUGHLIN, MATTHEW P
Art Unit
1626
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Hoffmann-La Roche Inc.
OA Round
2 (Final)
71%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
83%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
708 granted / 993 resolved
+11.3% vs TC avg
Moderate +12% lift
Without
With
+12.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
63 currently pending
Career history
1039
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
24.1%
-15.9% vs TC avg
§102
19.0%
-21.0% vs TC avg
§112
32.0%
-8.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 993 resolved cases

Office Action

§112 §DP
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 1-18 are pending in the application. Claims 1-18 are rejected. Response to Amendment / Argument Applicant does not appear to address the rejection of claim 17 under 35 USC 112(b) regarding broad and narrow limitations, which is maintained below. The provisional double patenting rejection is maintained since the instant application is not otherwise in condition for allowance. All other rejections made in the previous Office Action that do not appear below have been overcome by Applicant's amendments to the claims. Claim Objections In the definition of R5 in claim 1, the option “cyanoalkyl” is recited twice. It appears one instance should be “cyanoalkoxy”. A comma should be added after “cyanoalkoxy” in the definition of R5 in claim 12. In claim 16, “1and” should be replaced with “1 and”. 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. Claim 17 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. A broad range or limitation together with a narrow range or limitation that falls within the broad range or limitation (in the same claim) may be considered indefinite if the resulting claim does not clearly set forth the metes and bounds of the patent protection desired. See MPEP § 2173.05(c). In the present instance, claim 17 recites the broad recitations “conditions resulting from direct damage to myelin sheaths,” “demyelinating disorders,” “CNS disorders associated with myelin loss,” and “inflammation in the CNS” and the claim also recites (following each category) a list of diseases included with the generic terms, which are the narrower statement of the range/limitation. The claim(s) are considered indefinite because there is a question or doubt as to whether the feature introduced by such narrower language is (a) merely exemplary of the remainder of the claim, and therefore not required, or (b) a required feature of the claims. Claim Rejections - 35 USC § 112(d) The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 8-14 are rejected 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. Claims 8, 9, 10, 11 and 12 recite the option for R5 to be cyanoalkoxy, which option is no longer recited in claim 1. In claims 13 and 14, the compound 6-chloro-7-(cyanomethoxy)-N-[5-(2,2-difluoroethyl)-4,6-dimethoxy-pyrimidin-2-yl]-1H-indole-3-sulfonamide contains a cyanoalkoxy group at the R5 position. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. 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 USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The 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/process/file/efs/guidance/eTD-info-I.jsp. Claims 1-18 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-12, 15, 21 and 22 of copending Application No. 19/059,580 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because the claims of the copending case recite compounds embraced by the instant claims. For instance, claim 10 of the copending case recites 6-chloro-7-fluoro-N-[4-methoxy-5-(1,1,2,2-tetradeuterio-2-fluoro-ethoxy)pyrimidin-2-yl]-1H-indole-3-sulfonamide, which has the following structure: PNG media_image1.png 283 380 media_image1.png Greyscale . The compound is embraced by formula I where R1 is alkoxy, R2 is haloalkoxy, R3 is H (or where the definitions of R1 and R3 are switched), X2 is NH, X1 is CR5, R4 is halo and R5 is halo. The compound is embraced by instant claims 1-12, 13 (as the second compound recited in the claim) and 14 (as the first compound recited in the claim). Regarding the claims of the copending case reciting deuterium containing compounds, the instant claims do not exclude the presence of deuterium and since deuterium occurs at natural abundance, the broadest reasonable interpretation of the instant claims is considered to include isotopes. Regarding instant claims 15-18, claims 12, 15, 17 and 18 of the copending case recite analogous methods or compositions. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion 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 MATTHEW P COUGHLIN whose telephone number is (571)270-1311. The examiner can normally be reached Monday - Friday, 10 am - 6 pm 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, Renee Claytor can be reached at 571-272-8394. 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. /MATTHEW P COUGHLIN/Primary Examiner, Art Unit 1626
Read full office action

Prosecution Timeline

Aug 24, 2023
Application Filed
Feb 26, 2026
Non-Final Rejection mailed — §112, §DP
May 21, 2026
Response Filed
Jul 22, 2026
Final Rejection mailed — §112, §DP (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
71%
Grant Probability
83%
With Interview (+12.0%)
2y 5m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 993 resolved cases by this examiner. Grant probability derived from career allowance rate.

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