Prosecution Insights
Last updated: October 02, 2026

Examiner: PHAN, TRUONG D

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

This examiner grants 69% of resolved cases

Analysis

Examiner Truong D. Phan serves in Tech Center 3600 and Art Unit 1796, where they have overseen 446 resolved cases. The examiner demonstrates an allowance rate of 68.6 percent, providing a baseline expectation for applicants seeking patent protection in this specific art unit. For those navigating the prosecution process, the median days to allowance is 995, which offers a clear metric for the typical duration from filing to a successful grant under this examiner's review.

A notable aspect of this examiner's profile is the interview lift of 16.6 percent. This figure indicates that conducting an interview with the examiner is associated with a higher probability of allowance compared to the general 68.6 percent rate. The data suggests a stable pattern of engagement across the 446 resolved cases. Practitioners should consider the 16.6 percent lift as a reason to prioritize direct communication to resolve potential issues. The 995 median days to allowance further assists in managing client expectations regarding the timeline for achieving a granted patent in Art Unit 1796.

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

Performance Statistics

68.6%
Allow Rate
+16.6% vs TC avg
471
Total Applications
+16.6%
Interview Lift
995
Avg Prosecution Days
Based on 446 resolved cases, 2023–2026

Rejection Statute Breakdown

2.5%
§101 Eligibility
10.9%
§102 Novelty
51.0%
§103 Obviousness
32.4%
§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.
18599303 METHOD FOR MEASURING OIL VISCOSITY AND VISCOSITY TESTING KIT FOR PERFORMING THE METHOD Non-Final OA AKTIEBOLAGET SKF
18607773 COVER FOR TISSUE HOLDER ASSEMBLY AND METHOD THEREOF Final Rejection Hologic, Inc.
18926473 GAS SENSOR Non-Final OA NGK INSULATORS, LTD.
18264238 METAL OXIDE-POLYMER NANO COMPOSITE FOR AMMONIA SENSING AT TEMPERATURES BELOW AMBIENT INCLUDING SUB-ZERO TEMPERATURES Non-Final OA COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH

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