Prosecution Insights
Last updated: August 18, 2026

Examiner: CHUNG, HOSUNG CHARLES

Tech Center 1700 • Art Units: 1754 1794

This examiner grants 60% of resolved cases

Performance Statistics

59.5%
Allow Rate
-5.5% vs TC avg
507
Total Applications
+37.2%
Interview Lift
1119
Avg Prosecution Days
Based on 481 resolved cases, 2023–2026

Rejection Statute Breakdown

0.8%
§101 Eligibility
10.8%
§102 Novelty
55.6%
§103 Obviousness
28.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18461987 ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY, ELECTROCHEMICAL CELL, STACK, AND ELECTROLYZER Non-Final OA TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
18106436 SYSTEM AND METHODS FOR LOW-VOLTAGE BIPOLAR HYDROGEN PRODUCTION FROM ALDEHYDES AND WATER Final Rejection IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
18034217 WATER SPLITTING DEVICE PROTECTION Final Rejection The Regents of the University of Michigan
17886741 METHODS OF REFRESHING PLATING BATHS CONTAINING PHOSPHATE ANIONS Non-Final OA Honeywell International Inc.
18036319 ANODE FOR ANION EXCHANGE MEMBRANE WATER ELECTROLYSIS Final Rejection KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
18768106 PLATING SYSTEM AND METHOD OF PLATING WAFER Non-Final OA Taiwan Semiconductor Manufacturing Company Limited
18427250 PORTABLE AND MODULAR PRODUCTION ELECTROPLATING SYSTEM Non-Final OA Snap-on Incorporated
18005944 SYSTEMS AND METHODS RELATING TO WATER ELECTROLYSIS Final Rejection THE PENN STATE RESEARCH FOUNDATION

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