Prosecution Insights
Last updated: October 27, 2026

Trent R Clarke, USPTO Patent Examiner

Listed by the USPTO as CLARKE, TRENT R

Tech Center 1600 • Art Units: 1651 1657 1678

This examiner grants 42% of resolved cases

Analysis

CLARKE, TRENT R is a USPTO patent examiner in tech center 1600 and art unit 1651. The record contains 441 resolved cases, with an allowance rate of 42.2% and a median of 1383 days to allowance. Interviews show a 24.7% lift, making interview preparation a potentially important consideration in applications assigned to this examiner.

The listed companies are Revival Animal Health LLC, Saudi Arabian Oil Company, and THE GENERAL HOSPITAL Corporation. The listed firms are The Juhasz Law Firm, P.C., AMSTER, ROTHSTEIN & EBENSTEIN LLP, and CANTOR COLBURN LLP. The portfolio spans animal health, energy, and hospital-related technologies, giving practitioners identifiable examples of the examiner's represented subject matter.

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

Performance Statistics

42.2%
Allow Rate
-17.8% vs TC avg
482
Total Applications
+24.7%
Interview Lift
1383
Avg Prosecution Days
Based on 441 resolved cases, 2023–2026

Rejection Statute Breakdown

5.1%
§101 Eligibility
11.6%
§102 Novelty
42.8%
§103 Obviousness
27.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18657413 COMPOSITIONS AND METHODS FOR THE TREATMENT OF PULMONARY ARTERIAL HYPERTENSION Non-Final OA The Regents of the University of Michigan
18190660 Using Water Ponds for Capturing Dioxide and Growing Algae Non-Final OA Saudi Arabian Oil Company
18889325 Methods and Compositions for Preserving Tissues and Organs Non-Final OA The General Hospital Corporation
18684262 METHODS COMPRISING THERAPEUTIC COMPOUNDS AND IN VITRO MAMMALIAN SKIN Non-Final OA AMGEN INC.
17923679 FUNCTIONALIZED POLY(GLYCEROL SEBACATE)S AND USES THEREOF Final Rejection CORNELL UNIVERSITY
17425039 MICROCARRIER FOR CELL CULTURE, METHOD FOR PRODUCING THE SAME, AND CELL CULTURE METHOD USING THE SAME Non-Final OA LG CHEM, LTD.

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Frequently Asked Questions

What is examiner Trent R Clarke's allowance rate?

42.2% of resolved applications examined by Trent R Clarke were allowed (441 resolved cases), compared with 31.6% across Art Unit 1651 over the last five years.

Does an interview help with examiner Trent R Clarke?

This examiner's interview lift is +24.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Trent R Clarke take to allow a patent?

Applications allowed by Trent R Clarke took 1,383 days on average from filing to allowance.

Which art unit does examiner Trent R Clarke work in?

Trent R Clarke examines applications in Art Unit 1651 in Tech Center 1600 (Biotechnology & Pharmaceuticals).

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