Prosecution Insights
Last updated: May 29, 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
964
Total Applications
-0.6%
Interview Lift
1260
Avg Prosecution Days
Based on 907 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
6.9%
§102 Novelty
81.5%
§103 Obviousness
8.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18989635 Lithium Secondary Battery Final Rejection LG Energy Solution, Ltd.
18267047 MULTI-ROLLER SYSTEM, AND DEVICE AND METHOD FOR FORMING BATTERY CAN Non-Final OA LG ENERGY SOLUTION, LTD.
18173328 LITHIUM-NICKEL-MANGANESE-BASED COMPOSITE OXIDE MATERIAL, SECONDARY BATTERY, AND ELECTRIC APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
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
18535016 CORE-SHELL COMPOSITES FOR ELECTRODES IN METAL-ION BATTERIES Final Rejection Sila Nanotechnologies, Inc.
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.
18255475 METHOD FOR DETERMINING THE LENGTH AND/OR VOLUME OF THE PURGE PATH WITHIN A FUEL CELL SYSTEM Final Rejection Robert Bosch GmbH
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
18519494 METHOD OF MANUFACTURING A BATTERY ELECTRODE Final Rejection MURATA MANUFACTURING CO., LTD.
17564970 SECONDARY BATTERY, BATTERY PACK, ELECTRIC TOOL, ELECTRIC AIRCRAFT, AND ELECTRIC VEHICLE Non-Final OA MURATA MANUFACTURING CO., LTD.
17771907 SURFACE-STABILIZED LINIO2 AS HIGH CAPACITY CATHODE FOR LI ION BATTERIES Non-Final OA Board of Regents, The University of Texas System
16700203 NEGATIVE ACTIVE MATERIAL COMPOSITE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, NEGATIVE ELECTRODE INCLUDING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME Non-Final OA Samsung SDI Co., Ltd.
18748455 BATTERY CELL AND LITHIUM-ION BATTERY Non-Final OA Ningde Amperex Technology Limited
18615877 MULTILAYERED ION EXCHANGE MEMBRANES Non-Final OA USA Fortescue IP, INC.
16884207 LITHIUM SECONDARY BATTERY Non-Final OA SK INNOVATION CO., LTD.
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)
17800340 MULTI-COMPONENT COMPOSITE ANODE MATERIAL, METHOD FOR PREPARING THE SAME, LITHIUM-ION BATTERY ANODE MATERIAL, AND LITHIUM-ION BATTERY Non-Final OA Dingyuan New Energy Technology Co., Ltd.
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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