Prosecution Insights
Last updated: April 19, 2026
Application No. 18/261,467

SMALL MOLECULE REGULATORS OF ALVEOLAR TYPE 2 CELL PROLIFERATION FOR THE TREATMENT OF PULMONARY DISEASES

Non-Final OA §112
Filed
Jul 13, 2023
Examiner
PIHONAK, SARAH
Art Unit
1627
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Scripps Research Institute
OA Round
1 (Non-Final)
61%
Grant Probability
Moderate
1-2
OA Rounds
2y 11m
To Grant
99%
With Interview

Examiner Intelligence

Grants 61% of resolved cases
61%
Career Allow Rate
900 granted / 1477 resolved
+0.9% vs TC avg
Strong +44% interview lift
Without
With
+43.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
47 currently pending
Career history
1524
Total Applications
across all art units

Statute-Specific Performance

§101
1.7%
-38.3% vs TC avg
§103
39.9%
-0.1% vs TC avg
§102
11.0%
-29.0% vs TC avg
§112
20.5%
-19.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1477 resolved cases

Office Action

§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 . Priority This application, filed 07/13/2023 is a National Stage entry of PCT/US2022/070198, International Filing Date: 01/14/2022. PCT/US2022/070198 Claims Priority from Provisional Application 63138131, filed 01/15/2021. Status of Claims Claims 31-43 are pending as of the response filed on 11/6/25. Claims 1-30 have been canceled. Applicant's election with traverse of the compound 2-(((R)-pyrrolidin-3-yl)amino)-1-((R)-2-((3aS,4S,6S,7aR)-3a,5,5-trimethylhexahydro-4,6-methanobenzo[d][1,3,2]dioxaborol-2-yl)pyrrolidine-1-yl)ethan-1-one, and the use recited by claim 37 in the reply filed on 11/6/25 is acknowledged. The traversal is on the ground(s) that unity of invention is not lacking in view of the newly submitted claims as Song doesn’t mention increasing the proliferation of cuboidal alveolar type 2 (AEC2) cells or restoring the diminished proliferation of AEC2 cells. In view of the new claims, the species election requirement is withdrawn. Claims 31-43 have been examined in their entirety. Claims 31-43 were examined. Claims 32-34 and 36-37 are rejected. Claims 34-35, 37-40, and 42 are objected to. Claims 31, 41, and 43 are allowed. 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. Claims 32-34 and 36-37 are 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. Claim 32 recites the DPP4 inhibitor as “(2S,4S)-4-(4-(pyrimidin-2-yl)piperazin-1-yl)pyrrolidine-2-yl)(pyrrolidine-1-yl)methanone (gosogliptin)”. However, “gosogliptin” as known in the art (Pubchem) corresponds to a compound having a different IUPAC name: PNG media_image1.png 300 300 media_image1.png Greyscale . The claim is indefinite as the metes and bounds aren’t clear. Claims 33 and 36 are similarly rejected as they refer to “gosogliptin” without further clarifying the IUPAC name and chemical structure. Claim 32 also recites the DPP4 inhibitor as “(2S,4S)-4-fluoro-1-((1-hydroxy-2-methylpropan-2-yl)glycyl)pyrrolidine-2-carbonitrile (TS-021)”. However, “TS-021” as known in the art (Pubchem) corresponds to a compound having a different IUPAC name, in particularly the benzenesulfonate salt: PNG media_image2.png 300 300 media_image2.png Greyscale . The claim is indefinite as the metes and bounds aren’t clear. Claims 34, and 37 are similarly rejected as they refer to “TS-021” without further clarifying the IUPAC name or chemical structure. Claim 32 also recites the DPP4 inhibitor as “3-(but-2-yn-1-yl)-5-methyl-2-(piperazin-1-yl)-3,5-dihydro-4H-imidazo[4,5-d]pyridazine-4-one (E-3024)”. However, “E-3024” as known in the art (CAS) corresponds to a compound having a different IUPAC name, in particularly the 4-benzenesulfonate salt: PNG media_image3.png 200 400 media_image3.png Greyscale . The claim is indefinite as the metes and bounds aren’t clear. Claims 34, and 37 are similarly rejected as they refer to “E-3024” without further clarifying the IUPAC name or chemical structure. The claims also recite the following DPP4 inhibitors: “PSN-9301” and “TQ-F3083”. However, the art doesn’t recognize a chemical structure for either of these inhibitors, and in particular, Applicants’ specification also doesn’t provide a chemical structure for these inhibitors. The metes and bounds of the claims aren’t clear, as it is uncertain what these names actually refer to, since the chemical formula or chemical structures of these agents aren’t known. Claim Objections Claims 34 and 37 are objected to because of the following informalities: the claims repeat the same compounds multiple times. For instance, claim 34 recites “(2R,3S,5R)-2-(2,5-difluorophenyl)-5-(5-(methylsulfonyl)-3,4,5,6-tetrahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)tetrahydro-2H-pyran-3-amine;” and “ZYDPLA-1;”, however, these names refer to the same compound. Claims 34 and 37 recite “2-(4-((2-((2S,5R)-2-cyano-5-ethynylpyrrolidin-1-yl)-2-oxoethyl)amino)-4-methylpiperidin-1-yl)isonicotinic acid;” and “ABT-279;”, however, these names refer to the same compound. Claims 34 and 37 recite “((R)-1-(L-valyl)pyrrolidine-2-yl)boronic acid;” and “BXCL-701 (talabostat);”, however these names refer to the same compound. Appropriate correction is required. Claims 35, 38-40, and 42 are 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. Information Disclosure Statement The IDS filed on 11/6/25 has been considered. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to SARAH PIHONAK whose telephone number is (571)270-7710. The examiner can normally be reached Monday-Friday 9:00-5:30 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 at 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. SARAH . PIHONAK Primary Examiner Art Unit 1627 /SARAH PIHONAK/Primary Examiner, Art Unit 1627
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Prosecution Timeline

Jul 13, 2023
Application Filed
Feb 09, 2026
Non-Final Rejection — §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
61%
Grant Probability
99%
With Interview (+43.7%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 1477 resolved cases by this examiner. Grant probability derived from career allow rate.

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