Prosecution Insights
Last updated: October 27, 2026

Truong D Phan, USPTO Patent Examiner

Listed by the USPTO as PHAN, TRUONG D

Tech Center 3600 • Art Units: 1796 1799 2855 2856 2861 3646

This examiner grants 69% of resolved cases

Analysis

PHAN, TRUONG D is a USPTO patent examiner in tech center 3600 and art unit 1796. The profile covers 448 resolved cases, an allowance rate of 68.8%, and a median of 997 days to allowance. The interview lift is 16.5%, indicating a positive association between interviews and allowance outcomes in the reported case history.

The listed companies are Toyota Motor Corporation, Panasonic Holdings Corporation, and The Boeing Company. The listed firms are Dickinson Wright PLLC - Ann Arbor, Knobbe, Martens, Olson & Bear, LLP, and MATTINGLY & MALUR, PC. The allowance rate supports careful analysis of claim scope and prosecution posture. The median timing is relevant to planning, and the interview measure supports considering examiner dialogue where it may clarify technical distinctions or support a focused amendment strategy.

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

Performance Statistics

68.8%
Allow Rate
+16.8% vs TC avg
482
Total Applications
+16.5%
Interview Lift
997
Avg Prosecution Days
Based on 448 resolved cases, 2023–2026

Rejection Statute Breakdown

2.1%
§101 Eligibility
11.0%
§102 Novelty
50.4%
§103 Obviousness
33.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18982308 COVER FOR GAS DETECTOR Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
18850326 GAS METER Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18638510 APPARATUS, SYSTEM, AND METHOD FOR DETECTING AN ABNORMALITY IN A STRUCTURE Non-Final OA The Boeing Company
18693431 VEHICLE DETERMINATION SYSTEM Non-Final OA KOBELCO CONSTRUCTION MACHINERY CO., LTD.
18607773 COVER FOR TISSUE HOLDER ASSEMBLY AND METHOD THEREOF Final Rejection Hologic, Inc.
18941100 NOISE SUPPRESSION USING MULTIPLE LIGHT SENSORS IN A PHOTOELECTRIC SMOKE DETECTOR Non-Final OA Microchip Technology Incorporated
18926473 GAS SENSOR Non-Final OA NGK INSULATORS, LTD.

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Frequently Asked Questions

What is examiner Truong D Phan's allowance rate?

68.8% of resolved applications examined by Truong D Phan were allowed (448 resolved cases), compared with 55.6% across Art Unit 1796 over the last five years.

Does an interview help with examiner Truong D Phan?

This examiner's interview lift is +16.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Truong D Phan take to allow a patent?

Applications allowed by Truong D Phan took 997 days on average from filing to allowance.

Which art unit does examiner Truong D Phan work in?

Truong D Phan examines applications in Art Unit 1796 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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