Prosecution Insights
Last updated: August 15, 2026
Application No. 18/012,364

BRANCHED LIPID COMPOUDS

Final Rejection §DP
Filed
Dec 22, 2022
Priority
Jun 26, 2020 — AU PCT/AU2020/050660 +2 more
Examiner
CHENG, KAREN
Art Unit
1623
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Ena Respiratory Pty Ltd.
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
524 granted / 687 resolved
+16.3% vs TC avg
Strong +27% interview lift
Without
With
+27.1%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
53 currently pending
Career history
728
Total Applications
across all art units

Statute-Specific Performance

§101
2.6%
-37.4% vs TC avg
§103
27.6%
-12.4% vs TC avg
§102
20.3%
-19.7% vs TC avg
§112
32.2%
-7.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 687 resolved cases

Office Action

§DP
DETAILED ACTION Claims 1-4, 6-9, 11, 13-25 and 28-29 are currently pending in the instant application. 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 . Response to Arguments Applicant's arguments filed 06/10/2026 have been fully considered but they are not persuasive. Applicant argues that the instant application was filed 12/02/2022 and claims benefit of PNG media_image1.png 52 324 media_image1.png Greyscale . Copending US application No. 17/622,451, hereafter referred to as ‘451, was filed 12/23/2021 and claims benefit of PNG media_image2.png 56 288 media_image2.png Greyscale . Applicant argues that compounds have not been disclosed in application filed earlier than WO ‘870. However according to MPEP 804, section I(B), A provisional double patenting rejection should be made and maintained by the examiner until the rejection has been obviated or is no longer applicable except as noted below: (i) Application under examination has the earlier patent term filing date If a provisional nonstatutory double patenting rejection is the only rejection remaining in an application having the earlier patent term filing date, the examiner should withdraw the rejection in the application having the earlier patent term filing date and permit that application to issue as a patent, thereby converting the provisional nonstatutory double patenting rejection in the other application into a nonstatutory double patenting rejection upon issuance of the patent. Given that the instant application has a later filing date than ‘451 and a notice of allowance has been issued on 04/17/2026 for ‘451, the double patenting rejections have been maintained. Information Disclosure Statement Applicant's Information Disclosure Statement filed on 06/10/2026 has been considered. Please refer to Applicant's copies of the 1449 submitted herewith. Election/Restrictions Applicant’s election of Group I, drawn to claims 1-4, 6-9, 11, 13-16 and 28 with election of species PNG media_image3.png 198 464 media_image3.png Greyscale in the reply filed on 12/02/2025 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Claims 17-25 and 29 remain 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. Election was made without traverse in the reply filed on 12/02/2025. Status of Claims According to MPEP 714, section F, if an amendment submitted on or after July 30, 2003, fails to comply with 37 CFR 1.121 (as revised on June 30, 2003), the Office will notify applicant by a Notice of Non-Compliant Amendment, Form PTOL-324, that the amendment fails to comply with the requirements of 37 CFR 1.121 and identify: (1) which section of the amendment is non-compliant (e.g., the amendments to the claims section); (2) items that are required for compliance (e.g., a claim listing in compliance with 37 CFR 1.121 (c)); and (3) the reasons why the section of the amendment fails to comply with 37 CFR 1.121 (e.g., the status identifiers are missing). As discussed in the previous Office Action, the correct status of claim 17-25 and 29 should be “withdrawn” rather than “previously presented” as these claims have been withdrawn from consideration withdrawn. However, for the sake of expedited prosecution, examination has proceeded. Maintained 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 1-4, 6-9, 11, 13-16 and 28 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1, 7-16, 19, 23-24 and 52 of copending Application No. 17/622,451 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because ‘451 teaches compounds and compositions comprising compounds of formula PNG media_image4.png 258 326 media_image4.png Greyscale . However, compounds 33-36 found in claim 23 of ‘451 correspond to compounds B9-B16 of instant claim 15. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion 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 KAREN CHENG whose telephone number is (703)756-4699. The examiner can normally be reached M-F, 9AM-6PM PST. 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, Adam Milligan can be reached at 571-270-7674. 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. /KAREN CHENG/Primary Examiner, Art Unit 1623 /VALERIE RODRIGUEZ-GARCIA/Primary Examiner, Art Unit 1621
Read full office action

Prosecution Timeline

Dec 22, 2022
Application Filed
Feb 04, 2026
Non-Final Rejection (signed) — §DP
Mar 09, 2026
Non-Final Rejection mailed — §DP
Jun 10, 2026
Response Filed
Jun 23, 2026
Examiner Interview (Telephonic)
Jun 26, 2026
Final Rejection mailed — §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
76%
Grant Probability
99%
With Interview (+27.1%)
2y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 687 resolved cases by this examiner. Grant probability derived from career allowance rate.

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