Prosecution Insights
Last updated: October 26, 2026

David Yi, USPTO Patent Examiner

Listed by the USPTO as YI, DAVID

Tech Center 2400 • Art Units: 2126 2132 2441 2449

This examiner grants 69% of resolved cases

Analysis

YI, DAVID works in tech center 2400 and art unit 2126. His profile includes 262 resolved cases, an allowance rate of 68.7%, and a median of 1452 days to allowance. The interview lift is 64.0%, the strongest interview association reflected in this profile.

Apple, Google, and Intel are the listed companies. The listed firms are Meagher Emanuel Laks Goldberg & Liao, LLP and STERNE, KESSLER, GOLDSTEIN & FOX P.L.L.C. Interviews appear highly relevant to prosecution strategy, although the median timing indicates that applicants should anticipate a lengthy process.

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

Performance Statistics

68.7%
Allow Rate
+10.7% vs TC avg
273
Total Applications
+64.0%
Interview Lift
1452
Avg Prosecution Days
Based on 262 resolved cases, 2023–2026

Rejection Statute Breakdown

19.5%
§101 Eligibility
12.6%
§102 Novelty
45.8%
§103 Obviousness
18.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18519307 MULTI-DECODER CLASSIFICATION ARCHITECTURE FOR COARSE-GRAINED CATEGORIZED DATA Non-Final OA Oracle International Corporation
17354392 EXPLAINABLE ARTIFICIAL INTELLIGENCE IN COMPUTING ENVIRONMENT Final Rejection Google LLC
18575139 METHOD AND APPARATUS FOR FUSING LAYERS OF DIFFERENT MODELS Non-Final OA Intel Corporation
18512245 Quantum Solver for Binary Black-box Optimization Non-Final OA International Business Machines Corporation

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Who Appears Before This Examiner

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Frequently Asked Questions

What is examiner David Yi's allowance rate?

68.7% of resolved applications examined by David Yi were allowed (262 resolved cases), compared with 35.2% across Art Unit 2126 over the last five years.

Does an interview help with examiner David Yi?

This examiner's interview lift is +64.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

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

Applications allowed by David Yi took 1,452 days on average from filing to allowance.

Which art unit does examiner David Yi work in?

David Yi examines applications in Art Unit 2126 in Tech Center 2400 (Networking & Security).

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