Prosecution Insights
Last updated: October 27, 2026

Hoan H Tran, USPTO Patent Examiner

Listed by the USPTO as TRAN, HOAN H

Tech Center 2800 • Art Units: 2852 2884

This examiner grants 96% of resolved cases

Analysis

TRAN, HOAN H works in tech center 2800 and art unit 2852. Across 559 resolved cases, the allowance rate is 96.1% and the interview lift is 4.1%. The median time to allowance is 594 days. The record therefore shows a very high observed allowance measure and the shortest stated timeline in this profile, while interviews have a limited positive association.

The recurring companies are Canon Inc. and Brother Kogyo Kabushiki Kaisha. The leading firms are MERCHANT & GOULD P.C. and Rossi, Kimms & McDowell LLP. The concentrated company and firm list gives applicants a focused reference for prosecution involving imaging, printing, and related technology.

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

Performance Statistics

96.1%
Allow Rate
+28.1% vs TC avg
573
Total Applications
+4.1%
Interview Lift
594
Avg Prosecution Days
Based on 559 resolved cases, 2023–2026

Rejection Statute Breakdown

4.5%
§101 Eligibility
47.2%
§102 Novelty
21.9%
§103 Obviousness
11.7%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19293179 IMAGE FORMING APPARATUS INCLUDING DEVICE MAIN BODY AND CONSUMABLE ATTACHABLE THERETO AND INCLUDING CONSUMABLE MEMORY FOR STORING RECYCLING HISTORY INFORMATION Non-Final OA BROTHER KOGYO KABUSHIKI KAISHA

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Frequently Asked Questions

What is examiner Hoan H Tran's allowance rate?

96.1% of resolved applications examined by Hoan H Tran were allowed (559 resolved cases), compared with 78.8% across Art Unit 2852 over the last five years.

Does an interview help with examiner Hoan H Tran?

This examiner's interview lift is +4.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Hoan H Tran take to allow a patent?

Applications allowed by Hoan H Tran took 594 days on average from filing to allowance.

Which art unit does examiner Hoan H Tran work in?

Hoan H Tran examines applications in Art Unit 2852 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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