Prosecution Insights
Last updated: October 02, 2026

Examiner: TRAN, ELLEN C

Tech Center 2400 • Art Units: 2134 2433 2434

This examiner grants 74% of resolved cases

Analysis

Examiner Ellen C Tran works in Art Unit 2134 within Tech Center 2400 and has handled 803 resolved cases. The allowance rate is 74.1 percent, which is a favorable figure for applicants. However, the median days to allowance is 1241 days, suggesting that the prosecution process can be somewhat lengthy. This 1241-day median pendency is a factor for practitioners to consider when managing client expectations in Art Unit 2134.

The interview lift of 19.5 percent is a finding that should guide prosecution strategy. While the 74.1 percent allowance rate is already high, the 19.5 percent lift indicates that interviews are effective at overcoming rejections and moving cases toward allowance. For the 803 resolved cases, the data shows that direct communication with the examiner is a productive tactic. This 19.5 percent lift can be a tool for navigating the 1241-day timeline in Tech Center 2400.

Practitioners should view the 74.1 percent allowance rate as a positive indicator of the examiner approach. The 19.5 percent interview lift offers a path to success, especially in complex cases. With 803 resolved cases, the examiner has a track record in Art Unit 2134, and the 1241-day median to allowance provides an expectation for the duration of the prosecution cycle.

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

Performance Statistics

74.1%
Allow Rate
+16.1% vs TC avg
817
Total Applications
+19.5%
Interview Lift
1241
Avg Prosecution Days
Based on 803 resolved cases, 2023–2026

Rejection Statute Breakdown

11.1%
§101 Eligibility
8.8%
§102 Novelty
57.4%
§103 Obviousness
13.3%
§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
19067579 AUTHENTICATION APPARATUS, AUTHENTICATION TARGET APPARATUS, IMAGE FORMING APPARATUS, AND REPLACEMENT UNIT FOR THE IMAGE FORMING APPARATUS Non-Final OA CANON KABUSHIKI KAISHA
18847063 FIRMWARE CONTROLLED SECRETS Final Rejection Hewlett-Packard Development Company, L.P.
17509199 Diameter Charging-Rule Inheritance Support Final Rejection Parallel Wireless, Inc.

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