Prosecution Insights
Last updated: October 22, 2026
Application No. 18/984,297

MODIFIED BACTERIAL PROTEIN EXPRESSION SYSTEM

Non-Final OA §112
Filed
Dec 17, 2024
Priority
Sep 28, 2015 — provisional 62/233,507 +4 more
Examiner
MEAH, MOHAMMAD Y
Art Unit
1652
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
The Trustees of Columbia University in the City of New York
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
1y 2m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
694 granted / 981 resolved
+10.7% vs TC avg
Strong +43% interview lift
Without
With
+42.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
61 currently pending
Career history
1018
Total Applications
across all art units

Statute-Specific Performance

§101
4.2%
-35.8% vs TC avg
§103
26.1%
-13.9% vs TC avg
§102
17.3%
-22.7% vs TC avg
§112
39.8%
-0.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 981 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 . Detail Action Claims 1-25 submitted on 9/15/2026 are pending for examination. Applicants election on 9/15/2026 with traverse of group 1 (claims 1-4 and 8-17) directed to a engineered bacterium comprising at least one deficient protease, wherein the at least one protease is ClpAP, wherein the bacterium is engineered to disrupt and to express an exogenous peptide, wherein, prior to engineering, the bacterium is a protease deficient e. coli in a protease other than ClpAP, and wherein the engineered bacterium overexpresses the polypeptide at a level which is at least 2 fold the greater compared to the level of the polypeptide produced by a bacterium not engineered with the deficient protease expressed by said E. coli prior to disruption of ClpAP, wherein said overexpression is induced at about 37° C. Traverse became moot as no argument for traversal is made therefore, Groups II-V ( claims 5-7 and 18-25) invention are withdrawn. Claims 1-4, 8-17 are for examination. Claim Rejections: 35 USC § 112(b) 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 1-4, 8-17 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 1 is indefinite because it recites “is a protease deficient E. coli other than ClpAP” and it is not clear from the claim if this is intended to mean that the E. coli strain is deficient in all proteases including ClpAP or that the E. coli strain has at least one protease deficiency present before an additional protease is disrupted including ClpAP. Claims 2-4 and 8-17 are included in this rejection as they do not overcome the rejection. Claim 1 is indefinite because it recites “the bacterium is engineered to disrupt and to express an exogenous peptide” for the following reason: It is unclear whether the bacterium disrupt and also expresses peptide or not. For clarity it should be replaces by “the bacterium is engineered to disrupt ClpAP and to express an exogenous polypeptide”. Correction is required. Claims 2-4 and 8-17 are included in this rejection as they do not overcome the rejection. Claim 16 is indefinite because it recites “the bacterium overexpresses a polypeptide--” . Claim 16 depends on claim 1. Claim 1 recites a polypeptide. Therefore in claim 16 it should be the polypeptide. Correction is required. Claim 17 is indefinite because it recites “the bacterium overexpresses a polypeptide--” . Claim 17 depends on claim 1. Claim 1 recites a polypeptide. Therefore in claim 17 it should be the polypeptide. Correction is required. Conclusion Claims 1-4, and 8-17 and no claim is allowable. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Mohammad Meah whose telephone number is 571-272- 1261. The examiner can normally be reached on 8:30-5PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Robert Mondesi can be reached on 4089187584. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system. /MOHAMMAD Y MEAH/Examiner, Art Unit 1652
Read full office action

Prosecution Timeline

Dec 17, 2024
Application Filed
Sep 28, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12753216
BIOACTIVE AGENTS AND METHODS RELATED THERETO
4y 10m to grant Granted Oct 06, 2026
Patent 12747262
ALKOXYPHENYL DERIVATIVES, PROTECTED NUCLEOSIDES AND PROTECTED NUCLEOTIDES, METHOD FOR PRODUCING OLIGONUCLEOTIDES, AND METHOD FOR REMOVING SUBSTITUENTS
2y 6m to grant Granted Sep 29, 2026
Patent 12735446
ALKOXYPHENYL DERIVATIVES, PROTECTED NUCLEOSIDES AND PROTECTED NUCLEOTIDES, METHOD FOR PRODUCING OLIGONUCLEOTIDES, AND METHOD FOR REMOVING SUBSTITUENTS
2y 6m to grant Granted Sep 15, 2026
Patent 12698505
EUKARYOTIC HOST SYSTEM FOR PRODUCING RECOMBINANT PROTEINS
4y 10m to grant Granted Aug 04, 2026
Patent 12697348
COMPOSITIONS FOR PROMOTING LONGEVITY AND METHODS OF USING THE SAME
2y 5m to grant Granted Aug 04, 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

1-2
Expected OA Rounds
71%
Grant Probability
99%
With Interview (+42.8%)
3y 0m (~1y 2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 981 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