Prosecution Insights
Last updated: October 27, 2026

Kevin Nmn Nguyen, USPTO Patent Examiner

Listed by the USPTO as NGUYEN, KEVIN NMN

Tech Center 4100 • Art Units: 1723 1752 4100

This examiner grants 83% of resolved cases

Analysis

NGUYEN, KEVIN NMN is assigned to tech center 4100 and art unit 1723. The profile covers 58 resolved cases and shows an 82.8% allowance rate. The 8.1% interview lift indicates a modest positive association between interviews and allowance outcomes. The median time to allowance is 1192 days, so the small resolved-case record should be considered alongside a relatively extended recorded prosecution timeline.

The listed companies are LG Energy Solution Ltd., Bayerische Motoren Werke Aktiengesellschaft, and Prime Planet Energy & Solutions Inc. The leading firms are Morgan, Lewis & Bockius LLP (WA), CROWELL & MORING LLP, and OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P. Practitioners may use interviews selectively while giving primary attention to claim clarity and timing management.

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

Performance Statistics

82.8%
Allow Rate
+22.8% vs TC avg
112
Total Applications
+8.1%
Interview Lift
1192
Avg Prosecution Days
Based on 58 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
20.7%
§102 Novelty
65.5%
§103 Obviousness
11.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18485357 ELECTRODE, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE Final Rejection KABUSHIKI KAISHA TOSHIBA
18024114 ELECTRICITY STORAGE DEVICE Final Rejection KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
18985569 GAS VENTING DEVICE AND BATTERY PACK COMPRISING SAME Non-Final OA LG ENERGY SOLUTION, LTD.
18726480 Battery Pack, Battery Module, and Vehicle Including the Same Non-Final OA LG Energy Solution, Ltd.
18021724 BATTERY PACK, ELECTRONIC DEVICE, VEHICLE AND BMS MODULE Non-Final OA LG ENERGY SOLUTION, LTD.
17769876 Electrode Assembly and Method for Manufacturing Same Final Rejection LG Energy Solution, Ltd.
18709893 Cathode with a Fluorine-Containing Polymer, and Solid-State Battery Comprising the Cathode Non-Final OA Bayerische Motoren Werke Aktiengesellschaft
18282579 Cooling Device for an Electrical Energy Store Having Gravity-Assisted Heat Pipes, Electrical Energy Store, and Motor Vehicle Final Rejection Bayerische Motoren Werke Aktiengesellschaft
18218200 FUEL CELL SYSTEM AND PURGING CONTROL METHOD THEREOF Non-Final OA KIA CORPORATION
18536776 CATHODE MATERIAL INCLUDING BISMUTH-DOPED MANGANITE-BASED PEROVSKITE AND SOLID OXIDE FUEL CELL INCLUDING SAME Non-Final OA KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
17595910 SECONDARY BATTERY Final Rejection Samsung SDI Co., Ltd.
17579950 SECONDARY BATTERY, BATTERY PACK, ELECTRONIC DEVICE, ELECTRIC TOOL, ELECTRIC AIRCRAFT, AND ELECTRIC VEHICLE Non-Final OA MURATA MANUFACTURING CO., LTD.
17978593 ANODE FOR LITHIUM SECONDARY BATTERY COMPRISING AN INTERFACIAL LAYER AND MANUFACTURING METHOD THEREOF Final Rejection THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
18177767 ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME Final Rejection SK ON CO., LTD.
17636626 SOLID ELECTROLYTE SHEET AND METHOD FOR PRODUCING SAME Non-Final OA NIPPON ELECTRIC GLASS CO., LTD.
17943453 TRACTION BATTERY PACK ASSEMBLY HAVING A BARRIER BETWEEN CELL STACKS Non-Final OA Ford Global Technologies, LLC
17700695 ACTIVE COOLING APPARATUS FOR BATTERY BACKUP UNITS Final Rejection Baidu USA LLC
17946025 COMPOSITE BODY, LITHIUM ION CONDUCTOR, ALL-SOLID STATE LITHIUM ION SECONDARY BATTERY, ELECTRODE SHEET FOR ALL-SOLID STATE LITHIUM ION SECONDARY BATTERY, AND LITHIUM TETRABORATE Non-Final OA INSTITUTE OF SCIENCE TOKYO
18490435 BATTERY MODULE AND METHOD OF MANUFACTURING SAME Non-Final OA Prime Planet Energy & Solutions, Inc.
18370368 LITHIUM-ION RECHARGEABLE BATTERY Final Rejection PRIME PLANET ENERGY & SOLUTIONS, INC.
18508877 PRISMATIC BATTERY ASSEMBLIES CONTAINING LONG CELLS WITH INTERLEAVED GAS MANIFOLDS AND ELECTRIC BUSBARS Non-Final OA GM GLOBAL TECHNOLOGY OPERATIONS LLC
18282351 METHOD FOR PRODUCING LAYERED COMPOSITE METAL OXIDE CRYSTAL MATERIAL Final Rejection NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
17780961 BIOMASS-BASED SOLID COMPOSITE ELECTROLYTES FOR BATTERIES Non-Final OA University of Louisville Research Foundation, Inc.

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Frequently Asked Questions

What is examiner Kevin Nmn Nguyen's allowance rate?

82.8% of resolved applications examined by Kevin Nmn Nguyen were allowed (58 resolved cases), compared with 60.0% across Art Unit 1723 over the last five years.

Does an interview help with examiner Kevin Nmn Nguyen?

This examiner's interview lift is +8.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kevin Nmn Nguyen take to allow a patent?

Applications allowed by Kevin Nmn Nguyen took 1,192 days on average from filing to allowance.

Which art unit does examiner Kevin Nmn Nguyen work in?

Kevin Nmn Nguyen examines applications in Art Unit 1723 in Tech Center 4100.

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