Prosecution Insights
Last updated: October 26, 2026

Kevin Worrell, USPTO Patent Examiner

Listed by the USPTO as WORRELL, KEVIN

Tech Center 3700 • Art Units: 1731 1742 1782 1789 3722

This examiner grants 12% of resolved cases

Performance Statistics

12.5%
Allow Rate
-57.5% vs TC avg
366
Total Applications
-3.1%
Interview Lift
1717
Avg Prosecution Days
Based on 311 resolved cases, 2023–2026

Rejection Statute Breakdown

0%
§101 Eligibility
15.7%
§102 Novelty
58.1%
§103 Obviousness
24.9%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
15120072 SELF SEALING ARTICLES Final Rejection 3M INNOVATIVE PROPERTIES COMPANY
18349202 CUSHIONING MATERIAL Final Rejection SEIKO EPSON CORPORATION
18720911 POLYESTER NONWOVEN FABRIC WITH SUPPRESSED REDUCTION IN PHYSICAL PROPERTIES BY TUFTING PROCESS, METHOD FOR MANUFACTURING SAME, AND BACKING FABRIC FOR CARPET COMPRISING SAME Non-Final OA KOLON INDUSTRIES, INC.
17771503 SKIN COOLING FABRIC, POLYETHYLENE YARN THEREFOR, AND METHOD FOR MANUFACTURING POLYETHYLENE YARN Final Rejection KOLON INDUSTRIES, INC.
18874082 WATER-REPELLENT TEXTILE Non-Final OA TORAY Industries, Inc.
18025298 POLYAMIDE CORE-SHEATH COMPOSITE FIBER AND FABRIC Non-Final OA Toray Industries, Inc.
15088703 NONWOVEN TEXTILE MADE FROM SHORT FIBERS Final Rejection Zephyros, Inc.
18073854 SEMICONDUCTIVE POLYOLEFIN COMPOSITION COMPRISING CARBONACEOUS STRUCTURES, POWER CABLE COMPRISING THE SAME AND USE THEROF Final Rejection Borealis AG
18936012 THERMALLY BONDED ARTICLES Non-Final OA Dow Global Technologies LLC

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Frequently Asked Questions

What is examiner Kevin Worrell's allowance rate?

12.5% of resolved applications examined by Kevin Worrell were allowed (311 resolved cases), compared with 55.4% across Art Unit 1731 over the last five years.

Does an interview help with examiner Kevin Worrell?

This examiner's interview lift is -3.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kevin Worrell take to allow a patent?

Applications allowed by Kevin Worrell took 1,717 days on average from filing to allowance.

Which art unit does examiner Kevin Worrell work in?

Kevin Worrell examines applications in Art Unit 1731 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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