Prosecution Insights
Last updated: July 17, 2026
Application No. 18/553,233

METHOD OF PRODUCING REGULATORY T CELLS BY CULTURING REGULATORY T CELLS OBTAINED FROM UMBILICAL CORD BLOOD

Non-Final OA
Filed
Sep 29, 2023
Priority
Apr 02, 2021 — provisional 63/170,214 +1 more
Examiner
SZPERKA, MICHAEL EDWARD
Art Unit
1641
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Teraimmune Inc.
OA Round
1 (Non-Final)
63%
Grant Probability
Moderate
1-2
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 63% of resolved cases
63%
Career Allowance Rate
592 granted / 945 resolved
+2.6% vs TC avg
Strong +37% interview lift
Without
With
+37.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
41 currently pending
Career history
979
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
26.7%
-13.3% vs TC avg
§102
10.8%
-29.2% vs TC avg
§112
18.6%
-21.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 945 resolved cases

Prosecution Timeline

Sep 29, 2023
Application Filed
Jun 05, 2026
Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12679882
OPTIMIZED FACTOR VIII GENE
2y 10m to grant Granted Jul 14, 2026
Patent 12668629
METHODS OF USING ANTI-TREM2 ANTIBODIES
5y 0m to grant Granted Jun 30, 2026
Patent 12653871
FACTOR IX POLYPEPTIDE FORMULATIONS
3y 3m to grant Granted Jun 16, 2026
Patent 12643957
Antibodies to Plasminogen Activator Inhibitor-1 (PAI-1) and Uses Thereof
3y 11m to grant Granted Jun 02, 2026
Patent 12637507
ANTIBODY WITH BINDING SPECIFICITY FOR HUMAN IL-13
3y 11m to grant Granted May 26, 2026
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
63%
Grant Probability
99%
With Interview (+37.0%)
3y 0m (~3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 945 resolved cases by this examiner. Grant probability derived from career allowance rate.

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