Prosecution Insights
Last updated: July 17, 2026
Application No. 18/484,372

SELECTIVE PASSIVATION OF PHOTORESISTS

Non-Final OA
Filed
Oct 10, 2023
Examiner
SULLIVAN, CALEEN O
Art Unit
2899
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Tokyo Electron Limited
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
1007 granted / 1137 resolved
+20.6% vs TC avg
Moderate +12% lift
Without
With
+11.5%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
9 currently pending
Career history
1147
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
70.3%
+30.3% vs TC avg
§102
8.1%
-31.9% vs TC avg
§112
2.4%
-37.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1137 resolved cases

Prosecution Timeline

Oct 10, 2023
Application Filed
Jun 05, 2026
Non-Final Rejection mailed (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12681387
PHOTORESIST COMPOSITIONS FOR EUV AND METHODS FOR MANUFACTURING SEMICONDUCTOR DEVICES USING THE SAME
3y 6m to grant Granted Jul 14, 2026
Patent 12676292
TARGET PROCESSING DEVICE AND TARGET PROCESSING METHOD
3y 5m to grant Granted Jul 07, 2026
Patent 12669476
METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, METHOD OF WASHING SEMICONDUCTOR MANUFACTURING APPARATUS, AND METHOD OF MEASURING CLEANLINESS OF WASHING SOLUTION
3y 4m to grant Granted Jun 30, 2026
Patent 12669757
MASK INSPECTION APPARATUS WITH A PLATFORM MODULE
2y 11m to grant Granted Jun 30, 2026
Patent 12663722
SYSTEM AND METHOD TO CONTROL DEFECTS IN PROJECTION-BASED SUB-MICROMETER ADDITIVE MANUFACTURING
3y 7m to grant Granted Jun 23, 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
89%
Grant Probability
99%
With Interview (+11.5%)
2y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1137 resolved cases by this examiner. Grant probability derived from career allowance rate.

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