Prosecution Insights
Last updated: October 26, 2026

Kareen Kay Thomas, USPTO Patent Examiner

Listed by the USPTO as THOMAS, KAREEN KAY

Tech Center 3700 • Art Units: 1653 3728 3736 3781

This examiner grants 77% of resolved cases

Analysis

THOMAS, KAREEN KAY is a USPTO patent examiner in tech center 3700 and art unit 1653. The record contains 1356 resolved cases, an allowance rate of 77.1%, and a median of 806 days to allowance. Interviews are associated with a 17.1% lift.

Origin Materials Operating Inc., Toyota Motor Corporation, and R & V Aqualine Industries Pty Ltd. are the listed companies. The listed firms are BANNER & WITCOFF, LTD., FITCH EVEN TABIN & FLANNERY, LLP, and GREENBERG TRAURIG, LLP (BOS). The substantial resolved-case record provides a useful basis for evaluating the reported allowance pattern. The median timing supports active schedule management, while the positive interview measure gives practitioners a reason to consider direct discussion when a focused response may benefit from examiner feedback.

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

Performance Statistics

77.1%
Allow Rate
+7.1% vs TC avg
1,383
Total Applications
+17.1%
Interview Lift
806
Avg Prosecution Days
Based on 1356 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
33.2%
§102 Novelty
38.7%
§103 Obviousness
23.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18725249 SELF-CLEANING MAINTENANCE STATION AND SELF-CLEANING SYSTEM Non-Final OA Beijing Roborock Technology Co., Ltd.
19293867 FORM FITTING TERMINALLY STERILIZABLE PACKAGING SYSTEMS FOR CATHETERS Non-Final OA EDWARDS LIFESCIENCES CORPORATION

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Frequently Asked Questions

What is examiner Kareen Kay Thomas's allowance rate?

77.1% of resolved applications examined by Kareen Kay Thomas were allowed (1,356 resolved cases), compared with 23.5% across Art Unit 1653 over the last five years.

Does an interview help with examiner Kareen Kay Thomas?

This examiner's interview lift is +17.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Kareen Kay Thomas take to allow a patent?

Applications allowed by Kareen Kay Thomas took 806 days on average from filing to allowance.

Which art unit does examiner Kareen Kay Thomas work in?

Kareen Kay Thomas examines applications in Art Unit 1653 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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