Prosecution Insights
Last updated: October 27, 2026

Mitchell Brain Hoag, USPTO Patent Examiner

Listed by the USPTO as HOAG, MITCHELL BRAIN

Tech Center 3700 • Art Units: 3771 3774 3792

This examiner grants 70% of resolved cases

Analysis

HOAG, MITCHELL BRAIN has resolved 138 cases in tech center 3700 and art unit 3771. The allowance rate is 70.3%, and interview lift is 19.4%. The allowance rate indicates that allowance is common in the recorded docket, while the positive interview measure supports using examiner discussions when a focused explanation may affect the result.

The median time to allowance is 1123 days, so applicants should incorporate extended prosecution into their planning. The recurring companies are Olympus Corporation, Dale Medical Products Inc., and Boston Scientific Corporation. The recurring firms are ARENTFOX SCHIFF LLP, ALG Intellectual Property | AB, and CROCKETT & CROCKETT, PC. These recurring participants provide useful points of reference for prosecution preparation.

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

Performance Statistics

70.3%
Allow Rate
At TC average
196
Total Applications
+19.4%
Interview Lift
1123
Avg Prosecution Days
Based on 138 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
24.1%
§102 Novelty
56.7%
§103 Obviousness
15.2%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18769873 VESSEL SCORING DEVICE Final Rejection Boston Scientific Scimed, Inc.
18651971 DISTAL NODE GROUNDING FEATURES FOR ACOUSTIC WAVEGUIDE Non-Final OA Cilag GmbH International
19184144 CANNULA CLEARANCE Final Rejection Alcon Inc.
17425712 EVERSION TOOL AND SIZE GUIDE FOR PERFORMING ARTERIAL MICROVASCULAR ANASTOMOSIS Non-Final OA BAXTER HEALTHCARE SA
19127809 SYSTEMS AND METHODS FOR LONG HAIR TRANSPLANTATION Non-Final OA The General Hospital Corporation
18414781 TISSUE REPAIR CONSTRUCTS AND METHODS OF USE Final Rejection Smith & Nephew Asia Pacific Pte. Limited
17142712 SURGICAL SYSTEM AND METHODS OF USE Non-Final OA MEDTRONIC INC.
17684225 DETECTION OF A COMPLETE INCISION BY AN ULTRASONIC TREATMENT DEVICE Non-Final OA OLYMPUS MEDICAL SYSTEMS CORP.
19069448 MEDICAL SYSTEM AND SUTURE DEVICE Non-Final OA OLYMPUS CORPORATION
18121254 VITREOUS SAMPLING DEVICE HAVING VIBRATION-DRIVEN FLUID PRESSURE Non-Final OA Verily Life Sciences LLC
18576614 CIRCUMFERENTIAL NERVE CUTTER Non-Final OA CHECKPOINT SURGICAL, INC.

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Frequently Asked Questions

What is examiner Mitchell Brain Hoag's allowance rate?

70.3% of resolved applications examined by Mitchell Brain Hoag were allowed (138 resolved cases), compared with 65.9% across Art Unit 3771 over the last five years.

Does an interview help with examiner Mitchell Brain Hoag?

This examiner's interview lift is +19.4 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mitchell Brain Hoag take to allow a patent?

Applications allowed by Mitchell Brain Hoag took 1,123 days on average from filing to allowance.

Which art unit does examiner Mitchell Brain Hoag work in?

Mitchell Brain Hoag examines applications in Art Unit 3771 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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