Prosecution Insights
Last updated: October 27, 2026

William C Choi, USPTO Patent Examiner

Listed by the USPTO as CHOI, WILLIAM C

Tech Center 2800 • Art Units: 2872 2873 2874

This examiner grants 93% of resolved cases

Analysis

CHOI, WILLIAM C is assigned to Tech Center 2800 and Art Unit 2872. The record covers 1146 resolved cases, with a 92.7% allowance rate and a median of 770 days to allowance. The interview lift is 4.1%, indicating a positive but modest association with allowance outcomes.

Genius Electronic Optical (Xiamen) Co., Ltd., Snap Inc., and Actutek Corporation are the listed leading companies. JCIPRNET, Muncy, Geissler, Olds & Lowe, P.C., and NORTH AMERICA INTELLECTUAL PROPERTY CORPORATION are the listed leading firms. Practitioners may consider interviews, while relying primarily on substantive claim strategy.

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

Performance Statistics

92.7%
Allow Rate
+24.7% vs TC avg
1,162
Total Applications
+4.1%
Interview Lift
770
Avg Prosecution Days
Based on 1146 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
54.2%
§102 Novelty
27.3%
§103 Obviousness
11.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18991058 EYEWEAR WITH A SHAPE MEMORY ALLOY ACTUATOR Non-Final OA SNAP INC.
18924372 MICROELECTROMECHANICAL SYSTEMS CONTACT AREA REDUCTION Non-Final OA Texas Instruments Incorporated
18954418 SYSTEMS AND METHODS FOR NEW VR DEVICE FORM-FACTOR Non-Final OA Meta Platforms Technologies, LLC
18961314 CONTROL METHOD FOR TINTABLE WINDOWS Non-Final OA View, Inc.

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Frequently Asked Questions

What is examiner William C Choi's allowance rate?

92.7% of resolved applications examined by William C Choi were allowed (1,146 resolved cases), compared with 64.9% across Art Unit 2872 over the last five years.

Does an interview help with examiner William C Choi?

This examiner's interview lift is +4.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner William C Choi take to allow a patent?

Applications allowed by William C Choi took 770 days on average from filing to allowance.

Which art unit does examiner William C Choi work in?

William C Choi examines applications in Art Unit 2872 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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