Prosecution Insights
Last updated: April 19, 2026
Application No. 17/596,958

INHIBITOR OF SURFACE PROTEIN (SP-D) / SIRPA / SHP2 PATHWAY FOR USE IN THE PREVENTION AND/OR TREATMENT OF SECONDARY INFECTION

Final Rejection §112
Filed
Dec 22, 2021
Examiner
WEN, SHARON X
Art Unit
1641
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Chu De Nantes - Centre Hospitalier Universitaire De Nantes
OA Round
2 (Final)
57%
Grant Probability
Moderate
3-4
OA Rounds
3y 9m
To Grant
88%
With Interview

Examiner Intelligence

Grants 57% of resolved cases
57%
Career Allow Rate
349 granted / 613 resolved
-3.1% vs TC avg
Strong +32% interview lift
Without
With
+31.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
40 currently pending
Career history
653
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
20.8%
-19.2% vs TC avg
§102
23.1%
-16.9% vs TC avg
§112
30.4%
-9.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 613 resolved cases

Office Action

§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 . Applicant’s amendment, filed 12/30/2025, has been entered. Claims 2, 4, 7, 14, 16, 21-31 have been canceled. Claim 32 has been added. Claims 1, 3, 5-6, 8-13, 15, 17-20, 32 are pending. Claims 9-13, 15, 17-20, 32 have been withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected Inventions, there being no allowable generic or linking claim. Claims 1, 3, 5-6 and 8 are currently under examination as they read on a method of preventing or treating secondary infection comprising administering an inhibitor of SP-D. The previous grounds of improper Markush group rejection have been withdrawn in view of cancelation of claim 4. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1, 3, 5-6 and 8 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Applicant’s argument has been considered but has not been found convincing. The rejection of record can be found in the previous Office Action, mailed 09/05/2025. Applicant argues, while relying on Pan et al., that the specification disclosed exemplary antibodies and that there are commercially available anti-SP-D antibodies. In response, it is noted that the disclosed/art-known antibodies are not sufficient to represent the entire genus as claimed A “representative number of species" means that those species that are adequately described are representative of the entire genus. AbbVie Deutschland GMBH v. Janssen Biotech, 111 USPQ2d 1780, 1790 (Fed. Cir. 2014). Thus, when there is substantial variation within the genus, one must describe a sufficient variety of species to reflect the variation within the genus. The “structural features common to the members of the genus” needed for one of skill in the art to 'visualize or recognize' the members of the genus takes into account the state of the art at the time of the invention. For example, the Federal Circuit has found that possession of a mouse antibody heavy and light chain variable regions provides a structural “stepping stone” to the corresponding chimeric antibody, but not to human antibodies. Centocor Ortho Biotech Inc. v. Abbott Labs., 97 USPQ2d 1870, 1875 (Fed. Cir. 2011). The size of the claimed antibody genus comprises substantial variations as one of skill in the art is well aware of the high level of polymorphism and complex nature of immunoglobulins. Schroeder et al. taught that through somatic variation, combinatorial rearrangement of individual gene segments and combinatorial association between different L and H chains, the repertoire of antibody diversity can have greater than 1016 different immunoglobulins (J Allergy Clin Immunol 2010, 125:S41-S52). Moreover, it is well-known in the art that antibodies have a large repertoire of distinct structures and that a huge variety of antibodies can be made to bind to a single epitope. For example, Lloyd et al. taught that over hundreds of functional antibody fragments can be isolated from an antibody library that bind to the same antigen wherein these antibodies have distinct heavy and light chain sequences (Protein Engineering, Design & Selection 2009, 22:159-168; see, e.g., Discussion). Therefore, the disclosed species are not representative of the claimed genus encompassing the substantial variation due to the high level of polymorphism of antibodies as exemplified by the above references. Schroeder and Lloyd references are in response to Applicant’s argument. Conclusion No claim is allowed. 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 SHARON X WEN whose telephone number is (571)270-3064. The examiner can normally be reached Mon-Fri 8-5. 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, Misook Yu can be reached at 571-272-0839. 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. /SHARON X WEN/Primary Examiner, Art Unit 1641
Read full office action

Prosecution Timeline

Dec 22, 2021
Application Filed
Sep 03, 2025
Non-Final Rejection — §112
Dec 08, 2025
Interview Requested
Dec 15, 2025
Applicant Interview (Telephonic)
Dec 15, 2025
Examiner Interview Summary
Dec 30, 2025
Response Filed
Jan 24, 2026
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

3-4
Expected OA Rounds
57%
Grant Probability
88%
With Interview (+31.5%)
3y 9m
Median Time to Grant
Moderate
PTA Risk
Based on 613 resolved cases by this examiner. Grant probability derived from career allow rate.

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