Prosecution Insights
Last updated: October 26, 2026

Tuan C. Dao, USPTO Patent Examiner

Listed by the USPTO as DAO, TUAN C.

Tech Center 4100 • Art Units: 2193 2194 2198 2445 2859 4100

This examiner grants 82% of resolved cases

Analysis

DAO, TUAN C. is a Tech Center 4100 examiner in Art Unit 2193 with 810 resolved cases. The allowance rate is 82.1%, and the median time to allowance is 1095 days. The established case volume supports prosecution planning based on a substantial set of recorded outcomes.

The interview lift is 15.5%, indicating a positive association with interviews. Practitioners may use an interview to identify the most relevant claim distinctions and to make subsequent written responses more efficient.

Advanced Micro Devices Inc., Capital One Services LLC, and Apple Inc. are the listed companies. Harrity & Harrity , LLP, Briggs Intellectual Property Law, and FINNEGAN, HENDERSON, FARABOW, GARRETT & DUNNER are the listed firms.

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

Performance Statistics

82.1%
Allow Rate
+22.1% vs TC avg
837
Total Applications
+15.5%
Interview Lift
1095
Avg Prosecution Days
Based on 810 resolved cases, 2023–2026

Rejection Statute Breakdown

15.7%
§101 Eligibility
20.9%
§102 Novelty
54.3%
§103 Obviousness
5.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18456791 USER SEGMENTATION FOR DYNAMIC PERSONALIZED APPLICATION FLOWS Non-Final OA Capital One Services, LLC
18383858 MUTABLE PARAMETERS FOR MACHINE LEARNING MODELS DURING RUNTIME Non-Final OA Apple Inc.
18636593 SYSTEMS AND METHODS FOR ASYNCHRONOUS TELEMETRY BANDWIDTH SIMULATOR Final Rejection The Boeing Company
18827392 TASK MANAGEMENT INTERFACES FOR END-TO-END TASK PROCESSING AND SUB-TASK GENERATION AND MODIFICATION Non-Final OA Microsoft Technology Licensing, LLC
18710385 NETWORK TASK PROCESSING METHOD AND APPARATUS BASED ON ARTIFICIAL INTELLIGENCE, AND STORAGE MEDIUM Non-Final OA Beijing Xiaomi Mobile Software Co., Ltd.
18779065 VIRTUAL MACHINE OPERATING SYSTEM CONFIGURATION SYSTEM Non-Final OA MEDIATEK INC.
18747576 EFFICIENT COMBINATORIAL METHOD FOR SCHEDULING A WORK PROCESS Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18524907 Task Graph Control of Data Transfer Final Rejection Advanced Micro Devices, Inc.
18374837 ADVANCED HARDWARE SCHEDULING USING UNMAPPED-QUEUE DOORBELLS Final Rejection ADVANCED MICRO DEVICES, INC.
17708021 DYNAMIC REGISTER RENAMING IN HARDWARE TO REDUCE BANK CONFLICTS IN PARALLEL PROCESSOR ARCHITECTURES Non-Final OA ADVANCED MICRO DEVICES, INC.

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Frequently Asked Questions

What is examiner Tuan C. Dao's allowance rate?

82.1% of resolved applications examined by Tuan C. Dao were allowed (810 resolved cases), compared with 70.7% across Art Unit 2193 over the last five years.

Does an interview help with examiner Tuan C. Dao?

This examiner's interview lift is +15.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Tuan C. Dao take to allow a patent?

Applications allowed by Tuan C. Dao took 1,095 days on average from filing to allowance.

Which art unit does examiner Tuan C. Dao work in?

Tuan C. Dao examines applications in Art Unit 2193 in Tech Center 4100.

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