Prosecution Insights
Last updated: October 27, 2026

William Eric Mossbrook, USPTO Patent Examiner

Listed by the USPTO as MOSSBROOK, WILLIAM ERIC

Tech Center 3700 • Art Units: 3791 3794

This examiner grants 54% of resolved cases

Analysis

MOSSBROOK, WILLIAM ERIC is assigned to Tech Center 3700 and Art Unit 3791. His profile contains 41 resolved cases, with a 53.7% allowance rate and a median of 1174 days to allowance. Interviews show a 75.5% lift in allowance outcomes, the most prominent quantitative feature of this record.

Named applicants include Boston Scientific Corporation, Omron Corporation, and Shin-Etsu Chemical Co., Ltd. The listed firms are Nelson Mullins Riley & Scarborough LLP, OLIFF PLC, and SCHWEGMAN LUNDBERG & WOESSNER, P.A. The limited case volume calls for caution, but supports careful consideration of examiner interviews.

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

Performance Statistics

53.7%
Allow Rate
-16.3% vs TC avg
86
Total Applications
+75.5%
Interview Lift
1174
Avg Prosecution Days
Based on 41 resolved cases, 2023–2026

Rejection Statute Breakdown

2.7%
§101 Eligibility
20.1%
§102 Novelty
47.4%
§103 Obviousness
27.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17910551 NEEDLE ASSEMBLY FOR FORMING HOLE THROUGH BIOLOGICAL WALL Final Rejection Boston Scientific Medical Device Limited
18626677 CATHETERS WITH REINFORCED SEGMENT AND ATTACHED TUBE Final Rejection Boston Scientific Scimed, Inc.
18784271 END EFFECTOR WITH SELECTIVELY REMOVED COATING FOR APPLYING ELECTRICAL ENERGY AND RELATED METHODS Final Rejection Cilag GmbH International
17798207 ELECTROSURGICAL VESSEL SEALING DEVICE CONTROLLER Final Rejection Conmed Corporation
18063040 FLEXIBLE, INSERTABLE, TRANSPARENT MICROELECTRODE ARRAY FOR DETECTING INTERACTIONS BETWEEN DIFFERENT BRAIN REGIONS Non-Final OA The Regents of the University of California
18058783 WEARABLE DEVICE AND DETECTION METHOD Non-Final OA OMRON HEALTHCARE CO., LTD.
17929523 ELECTRODE-EQUIPPED BAND AND WEARABLE APPARATUS Non-Final OA OMRON HEALTHCARE Co., Ltd.
18528996 ELECTROSURGICAL PROBE AND ELECTRODE ASSEMBLY WITH AN ACTIVE ELECTRODE SUPPORT STRUCTURE Non-Final OA Arthrex, Inc.
18407117 Bio-Electrode, And Method For Manufacturing The Same Non-Final OA Shin-Etsu Chemical Co., Ltd.
18029497 BIO-ELECTRODE, PRODUCTION METHOD FOR BIO-ELECTRODE, AND MEASUREMENT METHOD FOR BIO-SIGNAL Non-Final OA SHIN-ETSU CHEMICAL CO., LTD.
19097672 PLANAR CATHETER WITH STITCHED CONDUCTIVE WIRE Non-Final OA Biosense Webster (Israel) Ltd.
19040512 HANDLE ASSEMBLY AND ENDOSCOPE TREATMENT TOOL Non-Final OA OLYMPUS MEDICAL SYSTEMS CORP.
18656132 ULTRASOUND TREATMENT TOOL AND METHOD OF MANUFACTURING ULTRASOUND TREATMENT TOOL Non-Final OA OLYMPUS MEDICAL SYSTEMS CORP.
19229678 SURGICAL INSTRUMENT Non-Final OA LIVSMED INC.
17912978 BIOLOGICAL SENSOR Final Rejection Nitto Denko Corporation
18570002 AN ADHESIVE SKIN PATCH AND A METHOD FOR MANUFACTURING IT Final Rejection TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

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Frequently Asked Questions

What is examiner William Eric Mossbrook's allowance rate?

53.7% of resolved applications examined by William Eric Mossbrook were allowed (41 resolved cases), compared with 53.3% across Art Unit 3791 over the last five years.

Does an interview help with examiner William Eric Mossbrook?

This examiner's interview lift is +75.5 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner William Eric Mossbrook take to allow a patent?

Applications allowed by William Eric Mossbrook took 1,174 days on average from filing to allowance.

Which art unit does examiner William Eric Mossbrook work in?

William Eric Mossbrook examines applications in Art Unit 3791 in Tech Center 3700 (Medical Devices & Mechanical Engineering).

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