Prosecution Insights
Last updated: October 26, 2026

David Tuyang Yu, USPTO Patent Examiner

Listed by the USPTO as YU, DAVID TUYANG

Tech Center 4100 • Art Units: 1600 1633 1635 1651 1657 1693 4100

This examiner grants 100% of resolved cases

Analysis

YU, DAVID TUYANG is assigned to Tech Center 4100 and Art Unit 1600. The profile contains 3 resolved cases, with a 100.0% allowance rate and a 0.0% interview lift. The median time to allowance is 1360 days.

The listed companies are Beam Therapeutics Inc., Novartis AG, and Wisconsin Alumni Research Foundation. The listed firms are COOLEY LLP, GATES & COOPER LLP (General), and GOODWIN PROCTER LLP. The very small record does not support broad forecasting. Application-specific analysis remains more reliable than assuming that the allowance result or interview measure will recur.

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

Performance Statistics

100.0%
Allow Rate
+40.0% vs TC avg
45
Total Applications
+0.0%
Interview Lift
1360
Avg Prosecution Days
Based on 3 resolved cases, 2023–2026

Rejection Statute Breakdown

3.5%
§101 Eligibility
19.7%
§102 Novelty
33.0%
§103 Obviousness
28.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18579766 STRUCTURE-BASED DESIGN OF ANTISENSE OLIGONUCLEOTIDE DRUGS Non-Final OA The Regents of the University of California
18231684 MUSCLE RETENTION IN AGING AND DUCHENNE MUSCULAR DYSTROPHY (DMD) THROUGH S1P INHIBITION Non-Final OA Washington University
17797217 CIRCULAR BIFUNCTIONAL APTAMERS AND TRIFUNCTIONAL APTAMERS TARGETING Tau Non-Final OA The United States Government as represented by the Department of Veterans Affairs
18368737 COMPOSITIONS AND METHODS OF TREATMENT OF TUMORS EXPRESSING PUTATIVE ZIKA VIRUS RECEPTOR PROTEINS Final Rejection THE NEMOURS FOUNDATION

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Frequently Asked Questions

What is examiner David Tuyang Yu's allowance rate?

100.0% of resolved applications examined by David Tuyang Yu were allowed (3 resolved cases), compared with 37.3% across Art Unit 1600 over the last five years.

Does an interview help with examiner David Tuyang Yu?

This examiner's interview lift is +0.0 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 Tuyang Yu take to allow a patent?

Applications allowed by David Tuyang Yu took 1,360 days on average from filing to allowance.

Which art unit does examiner David Tuyang Yu work in?

David Tuyang Yu examines applications in Art Unit 1600 in Tech Center 4100.

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