Prosecution Insights
Last updated: October 26, 2026

David Choi, USPTO Patent Examiner

Listed by the USPTO as CHOI, DAVID

Tech Center 3700 • Art Units: 3626 3683 3684 3685 3796

This examiner grants 20% of resolved cases

Analysis

CHOI, DAVID works in Tech Center 3700 and Art Unit 3626. The profile includes 70 resolved cases, a 20.0% allowance rate, and a median of 1123 days to allowance. The interview lift is 29.8%, showing a positive association that may be relevant when applications face substantive examination issues.

Beijing Zitiao Network Technology Co., Ltd., Stryker Corporation, and Boston Scientific Corporation are the listed leading companies. DINSMORE & SHOHL LLP, Troutman Pepper Locke LLP, and Astute IP Law Group are the listed leading firms. The allowance result and timing support early planning for amendments and continued prosecution.

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

Performance Statistics

20.0%
Allow Rate
-50.0% vs TC avg
109
Total Applications
+29.8%
Interview Lift
1123
Avg Prosecution Days
Based on 70 resolved cases, 2023–2026

Rejection Statute Breakdown

39.1%
§101 Eligibility
9.4%
§102 Novelty
35.5%
§103 Obviousness
14.5%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18657644 INFORMATION PROCESSING APPARATUS, METHOD, AND PROGRAM Final Rejection FUJIFILM CORPORATION
18882636 METHOD, APPARATUS, DEVICE AND STORAGE MEDIUM FOR INFORMATION INTERACTION Non-Final OA Beijing Zitiao Network Technology Co., Ltd.
18334344 SYSTEMS AND METHODS FOR NON-COMPLIANCE DETECTION IN A SURGICAL ENVIRONMENT Non-Final OA Stryker Corporation
18232104 SYSTEM AND METHOD FOR ANALYSIS OF ADVICE IN HEALTH MANAGEMENT ACTION Non-Final OA NEC Corporation
18523540 SYSTEM FOR DIAGNOSIS DECISION SUPPORT BY AN AI ASSISTED AND OPTIMIZED CARE ASSISTANCE TOOL, AND ASSOCIATED METHOD Non-Final OA GE Precision Healthcare LLC
19108344 SEGMENT-BASED MACHINE LEARNING MODEL CLASSIFICATION OF HEALTH EVENTS Non-Final OA Medtronic, Inc.

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Frequently Asked Questions

What is examiner David Choi's allowance rate?

20.0% of resolved applications examined by David Choi were allowed (70 resolved cases), compared with 24.6% across Art Unit 3626 over the last five years.

Does an interview help with examiner David Choi?

This examiner's interview lift is +29.8 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner David Choi take to allow a patent?

Applications allowed by David Choi took 1,123 days on average from filing to allowance.

Which art unit does examiner David Choi work in?

David Choi examines applications in Art Unit 3626 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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