Prosecution Insights
Last updated: October 27, 2026

Ellen C Tran, USPTO Patent Examiner

Listed by the USPTO as TRAN, ELLEN C

Tech Center 2400 • Art Units: 2134 2433 2434

This examiner grants 74% of resolved cases

Analysis

TRAN, ELLEN C is assigned to tech center 2400 and art unit 2134. The record contains 806 resolved cases, with a 74.2% allowance rate and a 19.5% interview lift. The median time to allowance is 1240 days. The profile presents a substantial examination record, a favorable observed allowance measure, and a meaningful positive interview association.

The main companies are Robert Bosch GmbH, HP Inc., and AT&T Intellectual Property I L.P. The leading firms are NORTON ROSE FULBRIGHT US LLP, FIG. 1 Patents, and Quarles & Brady LLP. Practitioners can use these recurring names to place prosecution strategy in an electronics, industrial, and communications context.

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

Performance Statistics

74.2%
Allow Rate
+16.2% vs TC avg
823
Total Applications
+19.5%
Interview Lift
1240
Avg Prosecution Days
Based on 806 resolved cases, 2023–2026

Rejection Statute Breakdown

11.1%
§101 Eligibility
8.9%
§102 Novelty
57.0%
§103 Obviousness
13.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18983089 METHOD FOR INITIATING AN ADAPTATION OF AN ACCESS NETWORK Non-Final OA Robert Bosch GmbH
17823990 METHOD FOR MONITORING A COMPONENT OF AN EFFECT CHAIN Non-Final OA Robert Bosch GmbH
18847063 FIRMWARE CONTROLLED SECRETS Final Rejection Hewlett-Packard Development Company, L.P.
19066235 DYNAMIC MULTI-NETWORK SECURITY CONTROLS Final Rejection AT&T Intellectual Property I, L.P.
18979793 MOBILE DEVICE SNATCH DETECTION AND SECURITY Final Rejection Motorola Mobility LLC
17509199 Diameter Charging-Rule Inheritance Support Final Rejection Parallel Wireless, Inc.

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Frequently Asked Questions

What is examiner Ellen C Tran's allowance rate?

74.2% of resolved applications examined by Ellen C Tran were allowed (806 resolved cases).

Does an interview help with examiner Ellen C Tran?

This examiner's interview lift is +19.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Ellen C Tran take to allow a patent?

Applications allowed by Ellen C Tran took 1,240 days on average from filing to allowance.

Which art unit does examiner Ellen C Tran work in?

Ellen C Tran examines applications in Art Unit 2134 in Tech Center 2400 (Networking & Security).

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