Prosecution Insights
Last updated: October 26, 2026

Michael W Choi, USPTO Patent Examiner

Listed by the USPTO as CHOI, MICHAEL W

Tech Center 3600 • Art Units: 2116 2119 2121 3642 3652

This examiner grants 77% of resolved cases

Analysis

CHOI, MICHAEL W is assigned to Tech Center 3600 and Art Unit 2116. The profile covers 387 resolved cases, with a 77.3% allowance rate and a median of 1003 days to allowance. The interview lift is 30.0%, indicating a positive association with allowance outcomes.

Mitsubishi Electric Corporation, Apple Inc., and Toyota Motor Corporation are the listed leading companies. CANTOR COLBURN LLP, CHIP LAW GROUP, and Eversheds Sutherland (US) LLP - Rheem are the listed leading firms. Interview preparation may support prosecution strategy, while the timing measure calls for realistic client expectations.

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

Performance Statistics

77.3%
Allow Rate
+25.3% vs TC avg
418
Total Applications
+30.0%
Interview Lift
1003
Avg Prosecution Days
Based on 387 resolved cases, 2023–2026

Rejection Statute Breakdown

12.6%
§101 Eligibility
18.1%
§102 Novelty
47.3%
§103 Obviousness
19.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18895988 FAN CONTROL FOR HEADSET COMPUTING DEVICE Non-Final OA Apple Inc.
18945570 ELECTRICITY STORAGE SYSTEM Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18527613 Validation Logic for OPC UA Connected Devices Final Rejection ABB Schweiz AG
18704226 AIR CONDITIONER AND AIR CONDITIONING SYSTEM Final Rejection FUJITSU GENERAL LIMITED
18854564 DISTRIBUTED POWER SUPPLY INTEGRATION MANAGEMENT DEVICE AND POWER SYSTEM Non-Final OA Mitsubishi Electric Corporation
18262308 DIAGNOSIS APPARATUS AND DIAGNOSIS METHOD Non-Final OA Mitsubishi Electric Corporation
18437956 SYSTEM AND METHOD FOR SYSTEM-WIDE DER MANAGEMENT IN DISTRIBUTION GRID Non-Final OA HITACHI, Ltd.
18420783 INTELLIGENT MANUFACTURING EXECUTION SYSTEM (MES) FOR BATTERY MANUFACTURING WITH AUTONOMOUS SYSTEMS Non-Final OA HONEYWELL INTERNATIONAL INC.
18390571 SHOVEL Final Rejection SUMITOMO HEAVY INDUSTRIES, LTD.
18820544 DETECTING SYSTEMS IN BAGS Non-Final OA Dell Products L.P.
18907417 SYSTEMS AND METHODS FOR REDUCING TEMPERATURE OVERSHOOT OF A HEATING, VENTILATION, AND AIR CONDITIONING SYSTEM Non-Final OA Rheem Manufacturing Company
18939496 DISPATCH METHOD OF ENERGY MANAGEMENT SYSTEM FOR ENERGY STORAGE AND PHOTOVOLTAIC SYSTEM FOR INDUSTRIAL AND COMMERCIAL USE Non-Final OA Zhejiang Jinko Energy Storage Co., Ltd.

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Frequently Asked Questions

What is examiner Michael W Choi's allowance rate?

77.3% of resolved applications examined by Michael W Choi were allowed (387 resolved cases), compared with 70.1% across Art Unit 2116 over the last five years.

Does an interview help with examiner Michael W Choi?

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 Michael W Choi take to allow a patent?

Applications allowed by Michael W Choi took 1,003 days on average from filing to allowance.

Which art unit does examiner Michael W Choi work in?

Michael W Choi examines applications in Art Unit 2116 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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