Prosecution Insights
Last updated: October 27, 2026

Kevin C Butler, USPTO Patent Examiner

Listed by the USPTO as BUTLER, KEVIN C

Tech Center 3700 • Art Units: 2852 2855 2862 3781 3797

This examiner grants 89% of resolved cases

Analysis

Butler, Kevin C handles matters in USPTO Technology Center 3700 and art unit 2852. The record includes 931 resolved cases and an 89.3% allowance rate. The median time to allowance is 679 days, giving applicants a relatively direct timing signal for planning prosecution milestones within this profile.

The reported interview lift is 9.1%, so the record places greater practical emphasis on the underlying application and written prosecution than on interview impact alone. Rosemount Inc., Rolls-Royce plc, and Nippon Telegraph and Telephone Corporation are the listed companies. Command IP LLP, Faegre Drinker NTT, and HENRY M FEIEREISEN, LLC are the identified firms. Applicants should preserve technically precise claim language and use interviews selectively to resolve discrete issues.

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

Performance Statistics

89.3%
Allow Rate
+19.3% vs TC avg
965
Total Applications
+9.1%
Interview Lift
679
Avg Prosecution Days
Based on 931 resolved cases, 2023–2026

Rejection Statute Breakdown

0.9%
§101 Eligibility
33.0%
§102 Novelty
57.4%
§103 Obviousness
5.1%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18747619 PROBE AND METHOD FOR NON-DESTRUCTIVE TESTING OF A COMPONENT Non-Final OA ROLLS-ROYCE plc
18861762 MONITORING SYSTEM, MONITORING METHOD, AND ARITHMETIC DEVICE Non-Final OA NIPPON TELEGRAPH AND TELEPHONE CORPORATION
18755238 METHODS AND APPARATUS TO FORM AN IMAGE WITH DYNAMIC DELAY AND GAIN BEAMFORMING Non-Final OA Texas Instruments Incorporated
18823160 METHOD AND SYSTEM FOR DAMAGE LOCALIZATION USING LOW POWER GUIDED WAVE Non-Final OA Tata Consultancy Services Limited
18677670 SENSOR DATA PEAK TRACKING Non-Final OA STMicroelectronics International N.V.
18903181 WHEEL MONITORING SYSTEM AND METHOD Non-Final OA The Goodyear Tire & Rubber Company
18622219 INDUSTRIAL TRANSMITTER HOUSING AND MOUNT Non-Final OA Rosemount Inc.
18619768 COMPACT THERMAL CONDUCTIVITY HOUSING FOR GAS CHROMATOGRAPH Non-Final OA Rosemount Inc.
18908899 VIBRATION CHARACTERISTIC ESTIMATION SYSTEM IN MACHINE TOOL, MACHINE TOOL, AND VIBRATION CHARACTERISTIC ESTIMATION METHOD Non-Final OA OKUMA CORPORATION

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Frequently Asked Questions

What is examiner Kevin C Butler's allowance rate?

89.3% of resolved applications examined by Kevin C Butler were allowed (931 resolved cases), compared with 78.8% across Art Unit 2852 over the last five years.

Does an interview help with examiner Kevin C Butler?

This examiner's interview lift is +9.1 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 C Butler take to allow a patent?

Applications allowed by Kevin C Butler took 679 days on average from filing to allowance.

Which art unit does examiner Kevin C Butler work in?

Kevin C Butler examines applications in Art Unit 2852 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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