Prosecution Insights
Last updated: April 19, 2026
Application No. 17/919,939

PROCESS FOR THE PREPARATION OF ALPHA,OMEGA-ALKANEDIOL MONONITRATE

Final Rejection §DP
Filed
Oct 19, 2022
Examiner
WITHERSPOON, SIKARL A
Art Unit
1692
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
DSM IP ASSETS B.V.
OA Round
2 (Final)
86%
Grant Probability
Favorable
3-4
OA Rounds
1y 11m
To Grant
65%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
1403 granted / 1630 resolved
+26.1% vs TC avg
Minimal -21% lift
Without
With
+-21.0%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
36 currently pending
Career history
1666
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
44.6%
+4.6% vs TC avg
§102
19.1%
-20.9% vs TC avg
§112
17.5%
-22.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1630 resolved cases

Office Action

§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 . The examiner has considered the amendment and response filed by applicants on September 10, 2025. The claims were amended to overcome the rejection of record under 35 U.S.C. 112(b). Applicant’s arguments regarding the rejection under 35 U.S.C. 103 were persuasive, especially the last paragraph of pages 8 and 9, and page 10, first paragraph. As such, the examiner has with drawn this rejection. The following rejection is, however, being maintained, and updated to reflect the newly added claim(s). 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 filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual 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/apply/applying-online/eterminal-disclaimer. Claims 1-16 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-15 of copending Application No. 17/919,932 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because while the independent claim of the present invention is drawn to a process for hydrolysis of an alkanediol mononitrate monoacylate, and the independent claim of the reference application is drawn to a process for nitrate ester formation of an alkanediol monoacylate, the dependent claims of both applications contain limitations to accomplish the reactions described in each respective independent claim. Therefore, the instant claims are rendered obvious by the claims of the reference application. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Claims 1-16 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-15 of copending Application No. 17/920,327 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because while the independent claim of the present invention is drawn to a process for hydrolysis of an alkanediol mononitrate monoacylate, and the independent claim of the reference application is drawn to a process for the acylation of an alkanediol, the dependent claims of both applications contain limitations to accomplish the reactions described in each respective independent claim. Therefore, the instant claims are rendered obvious by the claims of the reference application. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. THIS ACTION IS MADE FINAL. 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 SIKARL A WITHERSPOON whose telephone number is (571)272-0649. The examiner can normally be reached M-F 9am-9pm IFP. 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. /SIKARL A WITHERSPOON/Primary Examiner, Art Unit 1692
Read full office action

Prosecution Timeline

Oct 19, 2022
Application Filed
Jun 09, 2025
Non-Final Rejection — §DP
Sep 10, 2025
Response Filed
Nov 24, 2025
Final Rejection — §DP (current)

Precedent Cases

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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
86%
Grant Probability
65%
With Interview (-21.0%)
1y 11m
Median Time to Grant
Moderate
PTA Risk
Based on 1630 resolved cases by this examiner. Grant probability derived from career allow rate.

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