Prosecution Insights
Last updated: August 17, 2026

Examiner: GASSEN, CHRISTOPHER J

Tech Center 2800 • Art Units: 2863 2881

This examiner grants 79% of resolved cases

Performance Statistics

79.4%
Allow Rate
+11.4% vs TC avg
165
Total Applications
+24.9%
Interview Lift
1027
Avg Prosecution Days
Based on 136 resolved cases, 2023–2026

Rejection Statute Breakdown

3.7%
§101 Eligibility
17.0%
§102 Novelty
43.1%
§103 Obviousness
33.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18837969 NUCLEAR REACTOR SHIELDING FACILITY, NUCLEAR FACILITY, AND NUCLEAR REACTOR SHIELDING FACILITY CONSTRUCTION METHOD Non-Final OA MITSUBISHI HEAVY INDUSTRIES, LTD.
18838013 Ion Milling Device Non-Final OA Hitachi High-Tech Corporation
18272948 METHOD AND APPARATUS FOR A POLYMER ELECTROSPRAY EMITTER Non-Final OA Massachusetts Institute of Technology
18384253 SEMICONDUCTOR PROCESS APPARATUS AND METHOD Final Rejection Taiwan Semiconductor Manufacturing Company LTD
18388490 ION ANGLE SENSOR Non-Final OA Applied Materials, Inc.
18593000 PATTERN SHAPE MEASUREMENT METHOD, PATTERN SHAPE MEASUREMENT DEVICE, AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE Non-Final OA Kioxia Corporation
18506957 MINIMIZATION OF ENERGY SPREAD IN FOCUSED ION BEAM (FIB) SYSTEMS Final Rejection FEI Company

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