Prosecution Insights
Last updated: October 26, 2026

Michael L Sehn, USPTO Patent Examiner

Listed by the USPTO as SEHN, MICHAEL L

Tech Center 3700 • Art Units: 3677 3745

This examiner grants 81% of resolved cases

Analysis

SEHN, MICHAEL L handles applications in Tech Center 3700 and art unit 3677. The record includes 670 resolved cases, an 81.2% allowance rate, and a 12.7% interview lift. The median days to allowance is 1022, indicating a meaningful interval between examination activity and allowance.

The company profile includes Samsung Electronics Co., Ltd., Volvo Group, and Siemens Gamesa Renewable Energy S.A. The listed firms are CANTOR COLBURN LLP, Cherson Feldenkrais IP Law Firm LLP, and Hinckley, Allen & Snyder, LLP. The positive interview lift gives practitioners a basis for considering interviews when narrowing disputed issues.

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

Performance Statistics

81.2%
Allow Rate
+11.2% vs TC avg
690
Total Applications
+12.7%
Interview Lift
1022
Avg Prosecution Days
Based on 670 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
22.2%
§102 Novelty
48.1%
§103 Obviousness
24.6%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18631443 PROPULSION SYSTEM FOR A MARINE VESSEL AND A USE OF A SLIP CLUTCH ASSEMBLY Non-Final OA VOLVO PENTA CORPORATION
19148702 ACTIVE FLAP FOR A BLADE OF A WIND TURBINE Non-Final OA Siemens Gamesa Renewable Energy A/S
18557097 FAN ASSEMBLY, DUST COLLECTION PILE, AND CLEANING SYSTEM Final Rejection Beijing Roborock Technology Co., Ltd.
18819144 REFRIGERATED TRANSPORT CONTAINER AND REFRIGERATED TRANSPORT VEHICLE Non-Final OA Carrier Corporation
18494632 CONTROL OF CARRIER HEAD SWEEP AND PLATEN SHAPE Non-Final OA Applied Materials, Inc.

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Frequently Asked Questions

What is examiner Michael L Sehn's allowance rate?

81.2% of resolved applications examined by Michael L Sehn were allowed (670 resolved cases), compared with 55.1% across Art Unit 3677 over the last five years.

Does an interview help with examiner Michael L Sehn?

This examiner's interview lift is +12.7 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Michael L Sehn take to allow a patent?

Applications allowed by Michael L Sehn took 1,022 days on average from filing to allowance.

Which art unit does examiner Michael L Sehn work in?

Michael L Sehn examines applications in Art Unit 3677 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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