Prosecution Insights
Last updated: May 29, 2026

Examiner: AMPONSAH, OSEI K

Tech Center 1700 • Art Units: 1729 1752

This examiner grants 72% of resolved cases

Performance Statistics

72.0%
Allow Rate
+7.0% vs TC avg
749
Total Applications
+33.6%
Interview Lift
1205
Avg Prosecution Days
Based on 689 resolved cases, 2023–2026

Rejection Statute Breakdown

0.5%
§101 Eligibility
5.9%
§102 Novelty
85.3%
§103 Obviousness
2.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
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.
18448374 BATTERY AND ELECTRIC APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18228335 SECONDARY BATTERY, METHOD FOR PREPARING SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRICAL 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
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
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
18615829 SYMMETRICAL OR ASYMMETRICAL ALKYLSULFONYL IMIDE OR CYCLIC ALKYLENE SULFONYLIMIDE SALTS AS CATHODE ADDITIVES, ELECTROLYTE ADDITIVES, OR SI ANODE ADDITIVES FOR SI ANODE-BASED LI-ION CELLS Non-Final OA Enevate Corporation
19017808 ELECTROLYTE FOR SODIUM SECONDARY BATTERY, SODIUM SECONDARY BATTERY, AND ELECTRIC APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
18334129 RECHARGEABLE BATTERIES WITH ALKALI METAL ION CATHODES, ALUMINUM METAL-BASED ANODES AND DISPLACEMENT ELECTROLYTE Non-Final OA Sila Nanotechnologies, Inc.
18307814 BUS BAR AND BATTERY MODULE INCLUDING THE SAME Non-Final OA SK ON CO., LTD.
18037228 BATTERY MODULE Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
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
18137052 FUEL CELL VEHICLE AND FUEL CELL VEHICLE CONTROL METHOD Non-Final OA KIA CORPORATION
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.
17639292 POWER SUPPLY ASSEMBLY FOR A MOTOR VEHICLE Final Rejection Renault S.A.S.
18188686 NEGATIVE ACTIVE MATERIAL, ELECTROCHEMICAL DEVICE THAT USES SAME, AND ELECTRONIC DEVICE Final Rejection Ningde Amperex Technology Limited
17914926 NON-AQUEOUS ELECTROLYTE FOR BATTERY, PRECURSOR FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, PHOSPHAZENE COMPOUND, AND ADDITIVE FOR BATTERY Final Rejection MITSUI CHEMICALS, INC.
17783802 LITHIUM METAL COMPOSITE OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY Non-Final OA Sumitomo Metal Mining Co., Ltd.
17997144 SLURRY COMPOSITION FOR ALL-SOLID-STATE SECONDARY BATTERY, SOLID ELECTROLYTE-CONTAINING LAYER, AND ALL-SOLID-STATE SECONDARY BATTERY Final Rejection ZEON CORPORATION
18640174 ELECTROCHEMICAL DEVICE COMPRISING CARBON QUANTUM DOT IONIC COMPOUND ELECTROLYTE Final Rejection GRAPHENIDE TECHNOLOGY CO., LTD.
18019757 ACYCLIC/CYCLIC ETHER BASED ELECTROLYTES OUTSTRETCHING THE LOW TEMPERATURE LIMIT OF SODIUM METAL ANODE Final Rejection Trustees of Dartmouth College
18038456 BURNER DEVICE FOR A FUEL CELL SYSTEM Non-Final OA AVL List GmbH
18182381 CATHODE COMPOSITION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY MANUFACTURED USING 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.

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