Prosecution Insights
Last updated: April 19, 2026

Examiner: CHUNG, HOSUNG CHARLES

Tech Center 1700 • Art Units: 1754 1794

This examiner grants 59% of resolved cases

Performance Statistics

58.9%
Allow Rate
-6.1% vs TC avg
496
Total Applications
+38.2%
Interview Lift
1056
Avg Prosecution Days
Based on 470 resolved cases, 2023–2026

Rejection Statute Breakdown

1.1%
§101 Eligibility
9.8%
§102 Novelty
53.0%
§103 Obviousness
30.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18501537 ANODE-SIDE SEPARATOR AND WATER ELECTROLYSIS DEVICE Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18155931 ANODE-SIDE SEPARATOR AND WATER ELECTROLYZER Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18036319 ANODE FOR ANION EXCHANGE MEMBRANE WATER ELECTROLYSIS Non-Final OA KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
18034217 WATER SPLITTING DEVICE PROTECTION Non-Final OA The Regents of the University of Michigan
18042539 HEAT RECOVERY DURING ELECTROLYSIS PROCESSES Non-Final OA Linde GmbH
17801884 ELECTROLYSIS ELEMENT FOR ALKALINE WATER ELECTROLYSIS, AND ALKALINE WATER ELECTROLYSIS VESSEL Final Rejection TOKUYAMA CORPORATION
18106436 SYSTEM AND METHODS FOR LOW-VOLTAGE BIPOLAR HYDROGEN PRODUCTION FROM ALDEHYDES AND WATER Non-Final OA IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
17998255 METHODS TO IMPROVE WAFER WETTABILITY FOR PLATING - ENHANCEMENT THROUGH SENSORS AND CONTROL ALGORITHMS Non-Final OA Lam Research Corporation
18005944 SYSTEMS AND METHODS RELATING TO WATER ELECTROLYSIS Non-Final OA THE PENN STATE RESEARCH FOUNDATION
18107628 INTEGRATED PARTIAL OXIDATION AND ELECTROLYSIS PROCESS Non-Final OA GTI ENERGY
18137666 SUPER ELECTROCHEMICAL CORROSION-RESISTANT BILAYER PASSIVE FILM STRUCTURE AND STAINLESS STEEL SUITABLE FOR WATER ELECTROLYSIS INDUSTRY Non-Final OA THE UNIVERSITY OF HONG KONG
17707336 CONTROL OF TEXTURE AND MORPHOLOGY OF ZINC FILMS THROUGH PULSED METHODS FROM ADDITIVE-FREE ELECTROLYTES Non-Final OA WiSys Technology Foundation, Inc
18194019 ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS Final Rejection Dongguan Amperex Technology Limited
18031825 HIGH AUTONOMY ZINC BATTERIES Non-Final OA FUNDACIÓN CIDETEC
18153612 METHOD AND SYSTEM FOR FORMING A MULTILAYERED ZINC ALLOY COATING AND METALLIC ARTICLE Final Rejection Parker Hannifin EMEA S.à.r.l.
17879082 SOLID ELECTROLYTE FOR DRY ELECTROPOLISHING OF METALS WITH ACTIVITY MODERATOR Final Rejection DRYLYTE, S.L.
17796806 Electrolyte Solution Non-Final OA Texture Jet Ltd
17161133 METHOD AND COMPOSITION FOR METAL FINISHING Non-Final OA Analytical Specialties, Inc.

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