Prosecution Insights
Last updated: April 19, 2026
Application No. 18/583,667

COMPOSITIONS AND METHODS

Final Rejection
Filed
Feb 21, 2024
Examiner
DEVI, SARVAMANGALA
Art Unit
1645
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Seres Therapeutics Inc.
OA Round
2 (Final)
66%
Grant Probability
Favorable
3-4
OA Rounds
3y 4m
To Grant
99%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allow Rate
568 granted / 859 resolved
+6.1% vs TC avg
Strong +54% interview lift
Without
With
+54.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
51 currently pending
Career history
910
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
19.1%
-20.9% vs TC avg
§102
17.0%
-23.0% vs TC avg
§112
17.7%
-22.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 859 resolved cases

Prosecution Timeline

Feb 21, 2024
Application Filed
Mar 08, 2025
Non-Final Rejection
Jul 14, 2025
Response Filed
Nov 01, 2025
Final Rejection (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12594311
LACTOBACILLUS PLANTARUM PDG8 AND USE IN TREATING CARDIOVASCULAR DISEASES
2y 5m to grant Granted Apr 07, 2026
Patent 12569521
METHODS AND COMPOSITIONS FOR TREATING INFLAMMATORY SKIN DISEASE WITH RECOMBINANT MICROORGANISMS
2y 5m to grant Granted Mar 10, 2026
Patent 12495801
BACILLUS SUBTILIS JCK-1398 STRAIN INDUCING RESISTANCE IN VARIOUS PLANTS, AND COMPOSITION AND METHOD FOR CONTROLLING PINE WILT DISEASE BY USING SAME
2y 5m to grant Granted Dec 16, 2025
Patent 12485164
MENINGOCOCCUS VACCINES
2y 5m to grant Granted Dec 02, 2025
Patent 12472139
METHOD FOR MAINTAINING SKIN CORNEUM LAYER COMPLETENESS, PROMOTING HYALURONIC ACID PRODUCTION, IMPROVING SKIN CELL MITOCHONDRION ACTIVITY AND/ OR PROMOTING SKIN CELL PROLIFERATION BY USING BACTERIAL LYSATE OF HALOBACILLUS TRUEPERI TCI66207
2y 5m to grant Granted Nov 18, 2025
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
66%
Grant Probability
99%
With Interview (+54.4%)
3y 4m
Median Time to Grant
Moderate
PTA Risk
Based on 859 resolved cases by this examiner. Grant probability derived from career allow rate.

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