Prosecution Insights
Last updated: April 19, 2026

Examiner: AMPONSAH, OSEI K

Tech Center 1700 • Art Units: 1729 1752

This examiner grants 72% of resolved cases

Performance Statistics

71.8%
Allow Rate
+6.8% vs TC avg
748
Total Applications
+34.3%
Interview Lift
1274
Avg Prosecution Days
Based on 680 resolved cases, 2023–2026

Rejection Statute Breakdown

0.3%
§101 Eligibility
19.0%
§102 Novelty
66.1%
§103 Obviousness
9.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18334129 RECHARGEABLE BATTERIES WITH ALKALI METAL ION CATHODES, ALUMINUM METAL-BASED ANODES AND DISPLACEMENT ELECTROLYTE Non-Final OA Sila Nanotechnologies, Inc.
18448374 BATTERY AND ELECTRIC APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18331665 ELECTROLYTE, SECONDARY BATTERY INCLUDING SUCH ELECTROLYTE, AND PREPARATION METHOD OF SUCH SECONDARY BATTERY Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18321794 METHOD FOR PREPARING SEI-LIKE FILM COMPONENT ADDITIVE AS WELL AS ELECTROLYTE SOLUTION, LITHIUM-ION BATTERY, BATTERY MODULE, BATTERY PACK AND POWERED DEVICE Final Rejection Contemporary Amperex Technology Co., Limited
18049873 ELECTROLYTES AND COMPONENTS THEREOF Final Rejection Rivian IP Holdings, LLC
17570622 SERPENTINE COUNTER FLOW COLD PLATE FOR A VEHICLE BATTERY MODULE Final Rejection Rivian IP Holdings, LLC
18277862 BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME Non-Final OA LG ENERGY SOLUTION, LTD.
18270592 BATTERY MODULE AND BATTERY PACK AND METHOD PERFORMED BY HYDROGEN SULFIDE NEUTRALIZATION SYSTEM Non-Final OA LG ENERGY SOLUTION, LTD.
18038515 Positive Electrode Active Material, and Positive Electrode and Lithium Secondary Battery Which Include the Same Non-Final OA LG Energy Solution, Ltd.
18035225 Pouch-Shaped Battery Cell With Improved Safety Final Rejection LG Energy Solution, Ltd.
18037228 BATTERY MODULE Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
17788097 NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18385456 Nonaqueous Electrolyte Solution and Nonaqueous Electrolyte Secondary Battery Non-Final OA Asahi Kasei Kabushiki Kaisha
18635923 SILICON-BASED ENERGY STORAGE DEVICES WITH PHOSPHORUS CONTAINING ELECTROLYTE ADDITIVES Non-Final OA ENEVATE CORPORATION
18307814 BUS BAR AND BATTERY MODULE INCLUDING THE SAME Non-Final OA SK ON CO., LTD.
16972053 Battery Module Including Foldable Side Plate and Method for Manufacturing Same Final Rejection LG Chem, Ltd.
18137052 FUEL CELL VEHICLE AND FUEL CELL VEHICLE CONTROL METHOD Non-Final OA KIA CORPORATION
19017808 ELECTROLYTE FOR SODIUM SECONDARY BATTERY, SODIUM SECONDARY BATTERY, AND ELECTRIC APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
18948546 ELECTROLYTE SOLUTION AND SECONDARY BATTERY CONTAINING SAME, BATTERY MODULE, BATTERY PACK, AND ELECTRICAL DEVICE Non-Final OA Contemporary Amperex Technology (Hong Kong) Limited
19220824 CHEMICAL ADDITIVES FOR LIQUEFIED GAS ELECTROLYTES Non-Final OA SOUTH 8 TECHNOLOGIES, INC.
18194274 ORGANIC CARBONATE-BASED HIGH FLASH POINT ELECTROLYTE Final Rejection KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
17623578 METHODS AND COMPOSITIONS FOR HIGH-ENERGY BATTERY CATHODES Final Rejection Virginia Tech Intellectual Properties, Inc.
16929718 BATTERY, METHOD OF MANUFACTURING THE BATTERY, CIRCUIT BOARD, ELECTRONIC DEVICE, AND ELECTRIC VEHICLE Final Rejection Murata Manufacturing Co., Ltd.
18176669 METHOD OF PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY Final Rejection ECOPRO BM CO., LTD.
18400980 HIGH-CONCENTRATION HIGH-ENTROPY ELECTROLYTE, METHOD FOR PREPARING THE SAME, AND BATTERY Final Rejection KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY
18182381 CATHODE COMPOSITION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY MANUFACTURED USING THE SAME Final Rejection SK INNOVATION CO., LTD.
18094762 ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME Final Rejection SK INNOVATION CO, LTD.
17401916 ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME Final Rejection SK INNOVATION CO., LTD.
18764907 ELECTROLYTE SYSTEMS INCLUDING PERFORMANCE-ENHANCING ADDITIVES, AND ELECTROCHEMICAL CELLS INCLUDING THE SAME Final Rejection Lyten, Inc.
17639292 POWER SUPPLY ASSEMBLY FOR A MOTOR VEHICLE Final Rejection Renault S.A.S.

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