Prosecution Insights
Last updated: October 26, 2026

Tinh Dang, USPTO Patent Examiner

Listed by the USPTO as DANG, TINH

Tech Center 4100 • Art Units: 3655 3659 4100

This examiner grants 85% of resolved cases

Analysis

DANG, TINH is a Tech Center 4100 examiner in Art Unit 3655 with 560 resolved cases. The allowance rate is 85.4%, and the median time to allowance is 716 days. The established case volume supports practical planning around claim scope, response timing, and the expected pace of examination.

The interview lift is 7.9%, indicating a positive association with interviews. Practitioners may use interviews to address discrete issues, while keeping the written record and claim language central to the prosecution strategy.

The listed companies are Toyota Motor Corporation, Contemporary Amperex Technology Co., Limited, and Oshkosh Corporation. FOLEY & LARDNER LLP, BIRCH STEWART KOLASCH & BIRCH, LLP, and HAUPTMAN HAM, LLP are the listed firms.

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

Performance Statistics

85.4%
Allow Rate
+25.4% vs TC avg
581
Total Applications
+7.9%
Interview Lift
716
Avg Prosecution Days
Based on 560 resolved cases, 2023–2026

Rejection Statute Breakdown

1.2%
§101 Eligibility
29.9%
§102 Novelty
29.5%
§103 Obviousness
37.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18929617 VEHICLE FRONT PORTION STRUCTURE Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18502282 ELECTRIFIED VEHICLE Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
19056146 BATTERY BOX, BATTERY AND VEHICLE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
18822501 BOX BODY, BATTERY, AND ELECTRIC DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
19054089 ARTICULATED RIGID AXLE OF A VEHICLE WITH AN AXLE SUPPORT WITH AN ELECTRIC MACHINE AS DRIVE Non-Final OA ZF Friedrichshafen AG
18789368 EMERGENCY OPERATION OF AN LV LOAD OF AN ELECTRIC VEHICLE Non-Final OA AUDI AG
18879049 VEHICLE Non-Final OA JATCO Ltd
19013284 COLD START HYBRID SYSTEM FOR AUTOMOTIVE HYDROGEN FUEL CELL PACKS Non-Final OA International Truck Intellectual Property Company, LLC

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Frequently Asked Questions

What is examiner Tinh Dang's allowance rate?

85.4% of resolved applications examined by Tinh Dang were allowed (560 resolved cases), compared with 78.0% across Art Unit 3655 over the last five years.

Does an interview help with examiner Tinh Dang?

This examiner's interview lift is +7.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Tinh Dang take to allow a patent?

Applications allowed by Tinh Dang took 716 days on average from filing to allowance.

Which art unit does examiner Tinh Dang work in?

Tinh Dang examines applications in Art Unit 3655 in Tech Center 4100.

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