Prosecution Insights
Last updated: April 19, 2026

Examiner: WALLS, CYNTHIA KYUNG SOO

Tech Center 1700 • Art Units: 1724 1726 1751 1795

This examiner grants 72% of resolved cases

Performance Statistics

71.8%
Allow Rate
+6.8% vs TC avg
959
Total Applications
-0.3%
Interview Lift
1210
Avg Prosecution Days
Based on 904 resolved cases, 2023–2026

Rejection Statute Breakdown

0.1%
§101 Eligibility
18.9%
§102 Novelty
53.3%
§103 Obviousness
22.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18028406 METHOD OF MANUFACTURING ELECTRODE FOR SECONDARY BATTERY USING INSULATING COMPOSITION INCLUDING AQUEOUS BINDER SUBSTITUTED WITH NON-AQUEOUS SOLVENT Non-Final OA LG ENERGY SOLUTION, LTD.
17856035 SILICON BASED LITHIUM ION BATTERY AND IMPROVED CYCLE LIFE OF SAME Non-Final OA ENEVATE CORPORATION
17487967 PERFORMANCE IMPROVEMENTS OF SILICON-DOMINANT ANODE CONTAINING LITHIUM ION BATTERIES THROUGH THE USE OF FLUORINATED ESTER/CARBONATES/AROMATIC COMPOUNDS AND MULTIPLE ADDITIVE COMBINATION CONTAINING ELECTROLYTES Non-Final OA Enevate Corporation
18666390 NEGATIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME Final Rejection SK ON CO., LTD.
17736477 ENERGY STORAGE SYSTEM Final Rejection SK On Co., Ltd.
17632358 NEGATIVE ELECTRODE, SECONDARY BATTERY, AND SOLID-STATE SECONDARY BATTERY Final Rejection SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
18813069 SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND ELECTRICAL DEVICE CONTAINING THE SAME Non-Final OA Contemporary Amperex Technology (Hong Kong) Limited
17771907 SURFACE-STABILIZED LINIO2 AS HIGH CAPACITY CATHODE FOR LI ION BATTERIES Non-Final OA Board of Regents, The University of Texas System
16858516 POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME Non-Final OA Seoul National University R&DB Foundation
16677307 POSITIVE ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME Final Rejection Seoul National University R&DB Foundation
17564970 SECONDARY BATTERY, BATTERY PACK, ELECTRIC TOOL, ELECTRIC AIRCRAFT, AND ELECTRIC VEHICLE Non-Final OA MURATA MANUFACTURING CO., LTD.
19051881 POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME Non-Final OA ECOPRO BM CO., LTD.
16884207 LITHIUM SECONDARY BATTERY Non-Final OA SK INNOVATION CO., LTD.
18254168 LAMINATE FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE Non-Final OA ZEON CORPORATION
16964240 NONAQUEOUS ELECTROLYTE SOLUTION FOR BATTERIES, AND LITHIUM SECONDARY BATTERY Final Rejection MITSUI CHEMICALS, INC.
18748455 BATTERY CELL AND LITHIUM-ION BATTERY Non-Final OA Ningde Amperex Technology Limited
17940395 LITHIUM-ION BATTERY AND ELECTRONIC DEVICE Final Rejection Ningde Amperex Technology Limited
17407081 LITHIUM-ION BATTERY HAVING DESIRABLE SAFETY PERFORMANCE Final Rejection NINGDE AMPEREX TECHNOLOGY LIMITED
17068686 BATTERY CELL AND BATTERY Final Rejection NINGDE AMPEREX TECHNOLOGY LIMITED
18615877 MULTILAYERED ION EXCHANGE MEMBRANES Non-Final OA USA Fortescue IP, INC.
16979958 LITHIUM TITANIUM COMPOSITE OXIDE COMPRISING ALUMINUM-COATED PRIMARY PARTICLES AND MANUFACTURING METHOD THEREFOR Final Rejection POSCO CHEMICAL CO., LTD
18255116 FUEL CELL MEMBRANE HUMIDIFIER Non-Final OA KOLON INDUSTRIES, INC.
18196058 SOLID ELECTROLYTE COMPOSITION FOR TRIPLE-DOPED GARNET-TYPE ALL-SOLID-STATE BATTERY, SOLID ELECTROLYTE FOR TRIPLE-DOPED GARNET-TYPE ALL-SOLID-STATE BATTERY USING SAME, AND METHOD FOR PREPARING SAME Non-Final OA THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC)
18266277 LITHIUM-ION SECONDARY BATTERY AND ELECTRIC VEHICLE Non-Final OA Microvast, Inc.
14267212 PACKAGING MATERIAL FOR POWER STORAGE DEVICE Final Rejection TOPPAN PRINTING CO., LTD.

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