Prosecution Insights
Last updated: October 16, 2026

Yvonne Wei, USPTO Patent Examiner

Listed by the USPTO as WEI, YVONNE

Tech Center 1700 • Art Units: 1722 1748

This examiner grants 0% of resolved cases

Performance Statistics

—
Allow Rate
-65.0% vs TC avg
26
Total Applications
—
Interview Lift
0
Avg Prosecution Days
Based on 0 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
26.3%
§102 Novelty
49.1%
§103 Obviousness
22.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18637677 BATTERY SYSTEM Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18420395 Power Storage Cell Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18379695 BATTERY UNIT Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18663181 COUPLING ASSEMBLY, AN ENERGY STORAGE SYSTEM, A VEHICLE, AND A METHOD Non-Final OA Volvo Truck Corporation
18560755 A FUEL CELL SYSTEM, A METHOD OF CONTROLLING A FUEL CELL SYSTEM, AND A VEHICLE COMPRISING A FUEL CELL SYSTEM Non-Final OA VOLVO TRUCK CORPORATION
18531108 ANODE FOR ALL-SOLID-STATE BATTERY Non-Final OA Kia Corporation
18663102 BATTERY, ELECTRICITY CONSUMPTION DEVICE AND METHOD AND DEVICE FOR MANUFACTURING BATTERY Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18423607 BATTERY MODULE, BATTERY PACK, ELECTRICAL APPARATUS AND MANUFACTURING METHOD FOR BATTERY MODULE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18691247 METHOD FOR PRODUCING AN ELECTRODE OF A SOLID-STATE BATTERY CELL Non-Final OA VOLKSWAGEN AKTIENGESELLSCHAFT
18579698 PROCESS FOR RECYCLING LITHIUM ION BATTERY MATERIALS Non-Final OA BASF SE
18442094 BATTERY CELL WITH BUILT-IN COOLING SHEET AND BATTERY MODULE INCLUDING THE SAME Non-Final OA SK On Co., Ltd.
18627214 SECONDARY BATTERY Non-Final OA Samsung SDI Co., Ltd.
18614341 BUTTON CELL Non-Final OA SAMSUNG SDI CO., LTD.
18640536 HEAT MANAGEMENT APPARATUS, CONTROL METHOD FOR HEAT MANAGEMENT APPARATUS, AND VEHICLE Non-Final OA Yinwang Intelligent Technologies Co., Ltd.
18689832 FUEL CELL Non-Final OA L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude
18443296 METHOD FOR MANUFACTURING NON-AQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY Non-Final OA Prime Planet Energy & Solutions, Inc.
18489000 NONAQUEOUS ELECTROLYTE SOLUTION AND ELECTRICITY STORAGE DEVICE INCLUDING THE SAME Final Rejection Prime Planet Energy & Solutions, Inc.
18622359 POSITIVE ELECTRODE MATERIAL, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC DEVICE Non-Final OA NINGDE AMPEREX TECHNOLOGY LIMITED

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Frequently Asked Questions

Which art unit does examiner Yvonne Wei work in?

Yvonne Wei examines applications in Art Unit 1722 in Tech Center 1700 (Chemistry & Materials).

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