Prosecution Insights
Last updated: October 26, 2026

Sean Robert Brown, USPTO Patent Examiner

Listed by the USPTO as BROWN, SEAN ROBERT

Tech Center 4100 • Art Units: 1743 4100

This examiner grants 67% of resolved cases

Analysis

BROWN, SEAN ROBERT is assigned to art unit 1743 in tech center 4100. The profile contains 9 resolved cases, an allowance rate of 66.7%, an interview lift of 30.0%, and a median time to allowance of 1165 days. Because the resolved-case figure is limited, the reported rates should be treated as an initial case-history signal rather than a broad measure of prosecution behavior. The interview result nevertheless supports considering examiner discussion in the response plan.

The listed companies are Contemporary Amperex Technology Co., Limited, LG Energy Solution Ltd., and Toyota Motor Corporation. The leading firms are Bryan Cave Leighton Paisner LLP (DC), IP & T GROUP LLP, and Ladas & Parry LLP. These names identify the available technology and counsel context, but the small case history limits the strength of portfolio-level inferences. The median timeline remains useful for preliminary scheduling.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

66.7%
Allow Rate
+6.7% vs TC avg
37
Total Applications
+30.0%
Interview Lift
1165
Avg Prosecution Days
Based on 9 resolved cases, 2023–2026

Rejection Statute Breakdown

1.9%
§101 Eligibility
14.6%
§102 Novelty
55.3%
§103 Obviousness
25.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18304318 INORGANIC SOLID ELECTROLYTE-CONTAINING COMPOSITION, SHEET FOR ALL-SOLID STATE SECONDARY BATTERY, AND ALL-SOLID STATE SECONDARY BATTERY, AND MANUFACTURING METHODS FOR SHEET FOR ALL-SOLID STATE SECONDARY BATTERY AND ALL-SOLID STATE SECONDARY BATTERY Non-Final OA FUJIFILM Corporation
18320377 CAP ASSEMBLY, METHOD FOR MAKING ITS CONNECTOR, AND BATTERY WITH THIS CAP ASSEMBLY Final Rejection Techtronic Cordless GP
18325514 POSITIVE ELECTRODE ACTIVE MATERIAL PARTICLE, SODIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL PARTICLE Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18267249 NEGATIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY Final Rejection Panasonic Intellectual Property Management Co., Ltd.
18037012 BATTERY MODULE INCLUDING COMPRESSION PAD HAVING IMPROVED INSULATION AND ASSEMBLY, BATTERY PACK AND VEHICLE INCLUDING THE SAME Non-Final OA LG ENERGY SOLUTION, LTD.
18035039 POROUS SOLID COMPOUND, METHOD FOR PREPARING SAME, CATHODE FOR LITHIUM SECONDARY BATTERY COMPRISING POROUS SOLID COMPOUND, AND LITHIUM SECONDARY BATTERY Final Rejection LG ENERGY SOLUTION, LTD.
18125852 SOLID-STATE BATTERY Non-Final OA HONDA MOTOR CO., LTD.
18646745 CIRCUIT BOARD SAMPLING STRUCTURE, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18448496 BATTERY AND ELECTRICAL APPARATUS Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18351174 END CAP, BATTERY CELL, BATTERY AND POWER CONSUMING DEVICE Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18127073 METHOD FOR PREPARING A LITHIUM ION SECONDARY BATTERY AND A LITHIUM ION SECONDARY BATTERY PREPARED THEREFROM Final Rejection MURATA MANUFACTURING CO., LTD.
18572338 FUEL CELL SYSTEMS AND METHODS OF SIZING AND OPERATING AN EJECTOR BY USING A BY-PASS VALVE Non-Final OA CUMMINS INC.

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Frequently Asked Questions

What is examiner Sean Robert Brown's allowance rate?

66.7% of resolved applications examined by Sean Robert Brown were allowed (9 resolved cases), compared with 59.4% across Art Unit 1743 over the last five years.

Does an interview help with examiner Sean Robert Brown?

This examiner's interview lift is +30.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Sean Robert Brown take to allow a patent?

Applications allowed by Sean Robert Brown took 1,165 days on average from filing to allowance.

Which art unit does examiner Sean Robert Brown work in?

Sean Robert Brown examines applications in Art Unit 1743 in Tech Center 4100.

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