Prosecution Insights
Last updated: October 26, 2026

Trang U Tran, USPTO Patent Examiner

Listed by the USPTO as TRAN, TRANG U

Tech Center 2600 • Art Units: 2422 2426 2622

This examiner grants 79% of resolved cases

Analysis

TRAN, TRANG U is assigned to Tech Center 2600 and Art Unit 2422. The profile records 934 resolved cases, a 78.6% allowance rate, and a 15.7% interview lift. The median time to allowance is 1061 days. The large docket shows a favorable allowance outcome and a measurable interview effect, while the pendency figure supports planning prosecution steps before commercial timing becomes constrained.

LG Electronics Inc., Samsung Electronics Co., Ltd., and Fujifilm Corporation are the leading companies. The principal firms are DUANE MORRIS LLP - San Diego, FAEGRE DRINKER BIDDLE & REATH LLP (DC), and FOLEY & LARDNER LLP. Practitioners may combine focused examiner interviews with written amendments that clearly define the technical distinction and preserve support for the desired claim scope.

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

Performance Statistics

78.6%
Allow Rate
+16.6% vs TC avg
954
Total Applications
+15.7%
Interview Lift
1061
Avg Prosecution Days
Based on 934 resolved cases, 2023–2026

Rejection Statute Breakdown

6.8%
§101 Eligibility
32.7%
§102 Novelty
48.3%
§103 Obviousness
2.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19070528 CONTROL DEVICE, OPERATION METHOD OF CONTROL DEVICE, OPERATION PROGRAM OF CONTROL DEVICE, IMAGING APPARATUS, AND DISPLAY APPARATUS Non-Final OA FUJIFILM Corporation
19280617 SIGNAL PROCESSING DEVICE AND VIDEO DISPLAY DEVICE COMPRISING SAME Non-Final OA LG ELECTRONICS INC.
19221135 CONTROL DEVICE, BROADCAST RECEIVER, METHOD FOR CONTROLLING BROADCAST RECEIVER, AND METHOD FOR PROVIDING SERVICE Final Rejection SAMSUNG ELECTRONICS CO., LTD.
19014575 CAMERA OPERATION VERIFICATION SYSTEM AND METHOD Final Rejection Tyco Fire & Security GmbH
19106776 IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD Final Rejection HAMAMATSU PHOTONICS K.K.

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Frequently Asked Questions

What is examiner Trang U Tran's allowance rate?

78.6% of resolved applications examined by Trang U Tran were allowed (934 resolved cases), compared with 64.2% across Art Unit 2422 over the last five years.

Does an interview help with examiner Trang U Tran?

This examiner's interview lift is +15.7 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 U Tran take to allow a patent?

Applications allowed by Trang U Tran took 1,061 days on average from filing to allowance.

Which art unit does examiner Trang U Tran work in?

Trang U Tran examines applications in Art Unit 2422 in Tech Center 2600 (Communications).

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