Prosecution Insights
Last updated: August 16, 2026
Application No. 17/933,148

ANTI-C5 ANTIBODIES AND USES THEREOF

Non-Final OA §112
Filed
Sep 19, 2022
Priority
Jun 14, 2016 — provisional 62/349,705 +4 more
Examiner
ALAWADI, SARAH
Art Unit
1619
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Regeneron Pharmaceuticals Inc.
OA Round
2 (Non-Final)
38%
Grant Probability
At Risk
2-3
OA Rounds
0m
Est. Remaining
76%
With Interview

Examiner Intelligence

Grants only 38% of cases
38%
Career Allowance Rate
254 granted / 674 resolved
-22.3% vs TC avg
Strong +38% interview lift
Without
With
+38.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
51 currently pending
Career history
724
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
46.0%
+6.0% vs TC avg
§102
13.8%
-26.2% vs TC avg
§112
22.3%
-17.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 674 resolved cases

Office Action

§112
DETAILED ACTION 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 . Status of the Application A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application. Applicant's submission of the RCE filed on 07/10/2026 has been entered for further consideration of the claims. The Examiner acknowledges the following: Claims 41-51 are under current examination. Information Disclosure Statements Information Disclosure Statement (IDS) filed on 07/10/2026 has been considered by the Examiner. A signed copy of the IDS is included with the present Office Action. Claim Rejections - 35 USC § 112-indefinite 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 41-51 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 41 recites the phrase in the last paragraph “under conditions permitting production of the antibody or antigen binding fragment”. However, said conditions are not defined by the claim which is directed to a method of making, and the specification does not provide any guidance as to which conditions are necessary in permitting production of the antibody or antigen binding fragment of claim 41. The phrase conditions permitting is vague and indefinite absent a clear indication of which conditions are required by the claim to produce said antibody or antigen binding fragment. Accordingly, one of ordinary skill in the art would not be reasonably apprised of the scope of the invention as to which conditions are required by the claims such that there is production of the antibody or antigen biding fragment. Claims 42-51 do not rectify this deficiency to claim 41. Claim Rejections - 35 USC § 112(a)-written description 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 41-51 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. The MPEP lists factors that can be used to determine if sufficient evidence of possession has been furnished in the disclosure of the Application. These include “level of skill and knowledge in the art, partial structure, physical and/or chemical properties, functional characteristics alone or coupled with a known or disclosed correlation between structure and function, and the method of making the claimed invention. Disclosure of any combination of such identifying characteristics that distinguish the claimed invention from other materials and would lead one of skill in the art to the conclusion that the applicant was in possession of the claimed species is sufficient.” MPEP 2163. Further, for a broad generic claim, the specification must provide adequate written description to identify the genus of the claim. In Regents of the University of California v. Eli Lilly & Co., the court stated: “A written description of an invention involving a chemical genus, like a description of a chemical species, ‘requires a precise definition, such as by structure, formula, [or] chemical name,’ of the claimed subject matter sufficient to distinguish it from other materials. Fiers, 984 F.2d at 1171, 25 USPQ2d at 1606; In re Smythe, 480 F.2d 1376, 1383, 178 USPQ 279, 284-85 (CCPA 1973) ("In other cases, particularly but not necessarily, chemical cases, where there is unpredictability in performance of certain species or subcombinations other than those specifically enumerated, one skilled in the art may be found not to have been placed in possession of a genus. . . ."). Regents of the University of California v. Eli Lilly & Co., 43 USPQ2d 1398. Instant claim 41 in the last paragraph recites the culturing of a host cell comprising one or more polynucleotides encoding the HCVR and LCVR of the antibody or antigen binding fragment under conditions permitting production of the antibody or antibody binding fragment. Actual Reduction to Practice/sufficient relevant characteristics: In the instant case, the specification at paragraph [0052] recites the culturing of host cells under conditions permitting production of the antibodies or antibody fragments. However, the specification does not disclose which conditions are required for culturing of the host cells such that production of said antibodies or antibody fragments are permitted. Notably, claim 41 does not limit the host cell to CHO cells which may require a particular set of conditions that differ from other host cells. The breadth of the claims encompasses “conditions” that permit production of antibodies or antibody fragments, however there is no mention as to what conditions must necessarily be required to culture a genus of host cells and permit production of said antibodies or antigen-fragment. Accordingly, claims 41-52 lack written description for “conditions permitting production” for culturing a host cell. Conclusion Claims 41-51 are rejected. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SARAH ALAWADI whose telephone number is (571)270-7678. The examiner can normally be reached Monday-Friday 10:00am-6:30pm 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, David Blanchard can be reached at 571-272-0827. 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 ALAWADI/Primary Examiner, Art Unit 1619
Read full office action

Prosecution Timeline

Sep 19, 2022
Application Filed
Jun 11, 2025
Non-Final Rejection mailed — §112
Dec 10, 2025
Response Filed
Jul 10, 2026
Request for Continued Examination
Jul 13, 2026
Response after Non-Final Action
Jul 28, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12702645
ORALLY ADMINISTRABLE COMPOSITION
4y 4m to grant Granted Aug 11, 2026
Patent 12678458
ANTISEPTIC COMPOSITION
3y 2m to grant Granted Jul 14, 2026
Patent 12677834
SILVER SILICALITE ZEOLITE NANOMATERIALS FOR REDUCING CANDIDA AURIS BIOFILMS
3y 2m to grant Granted Jul 14, 2026
Patent 12611426
ANTIBIOTIC COMPOSITION COMPRISING A COMPOSITE OF DIATOMACEOUS EARTH AND ZINC OXIDE, AND COMBINATION PREPARATION WITH THE SAME
3y 9m to grant Granted Apr 28, 2026
Patent 12604900
PENFLUFEN AS A WOOD PRESERVATIVE AGAINST WOOD-DESTROYING BASIDIOMYCETES
2y 9m to grant Granted Apr 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

2-3
Expected OA Rounds
38%
Grant Probability
76%
With Interview (+38.4%)
3y 7m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 674 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month