Prosecution Insights
Last updated: October 27, 2026

Trang Thanh Dang, USPTO Patent Examiner

Listed by the USPTO as DANG, TRANG THANH

Tech Center 3700 • Art Units: 3656 3664 3771

This examiner grants 59% of resolved cases

Analysis

Trang Thanh Dang works in Tech Center 3700 and Art Unit 3656. She has 51 resolved cases and an allowance rate of 58.8 percent. The interview lift is 29.3 percent, indicating that interviews are a helpful strategy for applicants when compared to the 58.8 percent baseline. This lift suggests that direct communication can be an effective way to resolve issues and improve the chances of obtaining an allowance.

The median days to allowance is 1134. Top companies include Toyota Motor Corporation, Fujitsu Limited, and FANUC Corporation. These companies are often represented by Barnes & Thornburg LLP (IN), DINSMORE & SHOHL LLP, and SHUMAKER, LOOP & KENDRICK, LLP. The 1134 median days to allowance provides a benchmark for these firms when advising their clients on the expected timeline for patent prosecution for the 51 cases resolved by this examiner.

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

Performance Statistics

58.8%
Allow Rate
-11.2% vs TC avg
70
Total Applications
+29.3%
Interview Lift
1134
Avg Prosecution Days
Based on 51 resolved cases, 2023–2026

Rejection Statute Breakdown

8.2%
§101 Eligibility
21.4%
§102 Novelty
39.6%
§103 Obviousness
28.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18815118 AUTONOMOUS DRIVING SYSTEM Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18768104 COMPUTER-READABLE RECORDING MEDIUM STORING INFORMATION PROCESSING PROGRAM, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING DEVICE Final Rejection Fujitsu Limited
19194591 CONTROL DEVICE, ROBOT SYSTEM, OBJECT PRESENCE/ABSENCE DETERMINATION METHOD, AND PROGRAM Non-Final OA FANUC CORPORATION
17974173 METAVERSE SERVICE INTERACTION WITH SMART ROBOTS Non-Final OA AT&T Intellectual Property I, L.P.
19086177 SYSTEM, UNIT, AND MANUFACTURING METHOD Non-Final OA KABUSHIKI KAISHA YASKAWA DENKI
17242201 Methods and Systems for Tracking an Object Non-Final OA Aptiv Technologies AG

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Frequently Asked Questions

What is examiner Trang Thanh Dang's allowance rate?

58.8% of resolved applications examined by Trang Thanh Dang were allowed (51 resolved cases), compared with 66.7% across Art Unit 3656 over the last five years.

Does an interview help with examiner Trang Thanh Dang?

This examiner's interview lift is +29.3 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Trang Thanh Dang take to allow a patent?

Applications allowed by Trang Thanh Dang took 1,134 days on average from filing to allowance.

Which art unit does examiner Trang Thanh Dang work in?

Trang Thanh Dang examines applications in Art Unit 3656 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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