Prosecution Insights
Last updated: April 19, 2026
Application No. 18/177,787

METHODS FOR PROMOTING ANTI-TUMOR IMMUNE RESPONSE IN A SUBJECT IN NEED THEREOF USING ENCAPSULATED INTERLEUKIN 12

Non-Final OA
Filed
Mar 03, 2023
Examiner
BELYAVSKYI, MICHAIL A
Art Unit
1644
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Spectrum Pharmaceuticals Inc.
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
3y 1m
To Grant
91%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allow Rate
697 granted / 1091 resolved
+3.9% vs TC avg
Strong +27% interview lift
Without
With
+27.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
77 currently pending
Career history
1168
Total Applications
across all art units

Statute-Specific Performance

§101
2.3%
-37.7% vs TC avg
§103
29.0%
-11.0% vs TC avg
§102
9.7%
-30.3% vs TC avg
§112
10.9%
-29.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1091 resolved cases

Prosecution Timeline

Mar 03, 2023
Application Filed
Sep 10, 2025
Non-Final Rejection (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599675
NOVEL CONJUGATE OF IMMUNE-STIMULATING IL-2 ANALOG AND PREPARATION METHOD THEREOF
2y 5m to grant Granted Apr 14, 2026
Patent 12589113
PREPARATION OF A THERAPEUTIC COMPOSITION FOR TREATING AUTOIMMUNE DISEASES
2y 5m to grant Granted Mar 31, 2026
Patent 12584125
METHODS AND USE OF CHIMERIC PROTEINS
2y 5m to grant Granted Mar 24, 2026
Patent 12577581
USE OF PRE T ALPHA OR FUNCTIONAL VARIANT THEREOF FOR EXPANDING TCR ALPHA DEFICIENT T CELLS
2y 5m to grant Granted Mar 17, 2026
Patent 12570959
PROCESSES FOR PRODUCTION OF TUMOR INFILTRATING LYMPHOCYTES AND USES OF SAME IN IMMUNOTHERAPY
2y 5m to grant Granted Mar 10, 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
64%
Grant Probability
91%
With Interview (+27.2%)
3y 1m
Median Time to Grant
Low
PTA Risk
Based on 1091 resolved cases by this examiner. Grant probability derived from career allow rate.

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