Prosecution Insights
Last updated: October 26, 2026

Michael F Peffley, USPTO Patent Examiner

Listed by the USPTO as PEFFLEY, MICHAEL F

Tech Center 3700 • Art Units: 3739 3794

This examiner grants 78% of resolved cases

Analysis

Peffley, Michael F is assigned to Tech Center 3700 and Art Unit 3739, with 1385 resolved cases. The allowance rate is 77.8%, the interview lift is 13.5%, and the median time to allowance is 1261 days. The allowance rate is substantially higher than the interview measure, while the extended median timing calls for early prosecution planning.

The listed companies are Boston Scientific Corporation, Covidien L.P., and Medtronic Inc. The leading firms are Blank Rome LLP, NEW RIVER VALLEY INTELLECTUAL, and AMPACC Law Group, PLLC. The extensive record supports using the profile for preparation, with strong written claim development and selective interviews serving complementary roles.

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

Performance Statistics

77.8%
Allow Rate
+7.8% vs TC avg
1,419
Total Applications
+13.5%
Interview Lift
1261
Avg Prosecution Days
Based on 1385 resolved cases, 2023–2026

Rejection Statute Breakdown

2.0%
§101 Eligibility
24.5%
§102 Novelty
38.2%
§103 Obviousness
15.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18971532 Control Console And Accessories For RF Nerve Ablation And Methods Of Operating The Same Non-Final OA Stryker Corporation
18929053 NON-STICK COATED ELECTROSURGICAL INSTRUMENTS AND METHOD FOR MANUFACTURING THE SAME Non-Final OA Covidien LP
18669660 COMBINATION THERAPY TOOL FOR ONCOLOGY MANAGEMENT Non-Final OA Covidien LP
18974379 METHOD AND APPARATUS FOR RAPID AND SELECTIVE TRANSURETHRAL TISSUE ABLATION Non-Final OA Boston Scientific Scimed, Inc.
18784247 END EFFECTOR AND METHOD OF LASER REMOVAL OF COATING FOR APPLYING ELECTRICAL ENERGY Final Rejection Cilag GmbH International
18984669 CARDIAC PULSED FIELD ABLATION Non-Final OA Medtronic, Inc.
18338696 ELECTROSURGICAL ENERGY HARVESTING Final Rejection Medtronic, Inc.
18348605 IMMUNOTHERAPEUTIC METHODS USING ELECTROPORATION Non-Final OA Virginia Tech Intellectual Properties, Inc.

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Frequently Asked Questions

What is examiner Michael F Peffley's allowance rate?

77.8% of resolved applications examined by Michael F Peffley were allowed (1,385 resolved cases), compared with 0.0% across Art Unit 3739 over the last five years.

Does an interview help with examiner Michael F Peffley?

This examiner's interview lift is +13.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Michael F Peffley take to allow a patent?

Applications allowed by Michael F Peffley took 1,261 days on average from filing to allowance.

Which art unit does examiner Michael F Peffley work in?

Michael F Peffley examines applications in Art Unit 3739 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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