Prosecution Insights
Last updated: October 26, 2026

Everett Timothy Choi, USPTO Patent Examiner

Listed by the USPTO as CHOI, EVERETT TIMOTHY

Tech Center 1700 • Art Units: 1751

This examiner grants 10% of resolved cases

Performance Statistics

10.0%
Allow Rate
-55.0% vs TC avg
78
Total Applications
-13.3%
Interview Lift
1362
Avg Prosecution Days
Based on 20 resolved cases, 2023–2026

Rejection Statute Breakdown

0.6%
§101 Eligibility
24.4%
§102 Novelty
61.9%
§103 Obviousness
9.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17800768 LITHIUM ION BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18114479 METHOD FOR PRODUCING COATED ACTIVE MATERIAL AND METHOD FOR PRODUCING ELECTRODE Non-Final OA Panasonic Holdings Corporation
17620165 POWER SOURCE DEVICE, ELECTRIC VEHICLE EQUIPPED WITH SAID POWER SOURCE DEVICE, AND POWER STORAGE DEVICE Final Rejection SANYO Electric Co., Ltd.
18683436 SILICON-CONTAINING NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD OF PREPARING SILICON-CONTAINING NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING SILICON-CONTAINING NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE Non-Final OA LG ENERGY SOLUTION, LTD.
17913464 NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, NEGATIVE ELECTRODE, AND LITHIUM SECONDARY BATTERY Non-Final OA LG ENERGY SOLUTION, LTD.
17795462 BATTERY PACK HAVING IMPROVED FIXING STRUCTURE AND GAS DISCHARGE STRUCTURE, AND ELECTRONIC DEVICE AND VEHICLE INCLUDING SAME Non-Final OA LG ENERGY SOLUTION, LTD.
19273230 SECONDARY BATTERY AND ELECTRIC APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
17965057 PRESSURE RELIEF MECHANISM, BATTERY CELL, BATTERY, ELECTRIC APPARATUS, AND MANUFACTURING METHOD THEREOF Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18476567 THERMAL COMPONENT FOR BATTERY PACK Non-Final OA Rivian IP Holdings, LLC
18674719 CELL FRAME AND ENERGY STORAGE SYSTEM INCLUDING THE SAME Non-Final OA SAMSUNG SDI CO., LTD.
18535947 BATTERY MODULE Non-Final OA SAMSUNG SDI CO., LTD.
17904496 A POWDER FOR USE IN THE NEGATIVE ELECTRODE OF A BATTERY, A METHOD FOR PREPARING SUCH A POWDER AND A BATTERY COMPRISING SUCH A POWDER Non-Final OA UMICORE
17720314 CONDUCTIVE MODULE AND CONDUCTIVE SYSTEM Final Rejection Yazaki Corporation
17882876 CARBON-COATED LITHIATED SILICON-BASED ELECTROACTIVE MATERIALS AND METHODS OF MAKING THE SAME Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC
17879419 ELECTRODE ASSEMBLIES PREPARED USING DIFFUSION COUPLING Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC
18193933 Electrochemical Apparatus and Electronic Apparatus Containing Same Final Rejection Ningde Amperex Technology Limited
17911883 ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE CONTAINING SAME Final Rejection Ningde Amperex Technology Limited

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Frequently Asked Questions

What is examiner Everett Timothy Choi's allowance rate?

10.0% of resolved applications examined by Everett Timothy Choi were allowed (20 resolved cases), compared with 62.1% across Art Unit 1751 over the last five years.

Does an interview help with examiner Everett Timothy Choi?

This examiner's interview lift is -13.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Everett Timothy Choi take to allow a patent?

Applications allowed by Everett Timothy Choi took 1,362 days on average from filing to allowance.

Which art unit does examiner Everett Timothy Choi work in?

Everett Timothy Choi examines applications in Art Unit 1751 in Tech Center 1700 (Chemistry & Materials).

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