Prosecution Insights
Last updated: October 26, 2026

Matthew M Barker, USPTO Patent Examiner

Listed by the USPTO as BARKER, MATTHEW M

Tech Center 3600 • Art Units: 3646 3662

This examiner grants 73% of resolved cases

Analysis

BARKER, MATTHEW M works in Tech Center 3600 and Art Unit 3646. The record contains 794 resolved cases, with a 72.7% allowance rate and a 15.0% interview lift. These results indicate that interviews are associated with a measurable improvement in outcomes for this docket.

The median time to allowance is 1161 days, so prosecution planning should account for a substantial pendency period. The most frequent company stakeholders are Iceye OY, Vega Grieshaber KG, and Apple Inc. Commonly appearing firms include Cozen O'Connor - SEA Patent, OBLON, MCCLELLAND, MAIER & NEUSTADT, L.L.P., and Harrity & Harrity, LLP \ Qualcomm.

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

Performance Statistics

72.7%
Allow Rate
+20.7% vs TC avg
814
Total Applications
+15.0%
Interview Lift
1161
Avg Prosecution Days
Based on 794 resolved cases, 2023–2026

Rejection Statute Breakdown

9.5%
§101 Eligibility
15.5%
§102 Novelty
31.5%
§103 Obviousness
39.3%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18796144 VERTICAL LOCALIZATION BETWEEN DEVICES USING ALTITUDE MEASUREMENTS Non-Final OA APPLE INC.
19042422 ELECTROMAGNETIC REFLECTION APPARATUS AND BASE STATION Non-Final OA Huawei Technologies Co., Ltd.
17806598 TWO-WAY ULTRA-WIDEBAND SENSING Final Rejection QUALCOMM Incorporated
18633059 SIGNAL STRUCTURE DESIGNS FOR WIRELESS COMMUNICATION AND SENSING Final Rejection ZTE Corporation

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Frequently Asked Questions

What is examiner Matthew M Barker's allowance rate?

72.7% of resolved applications examined by Matthew M Barker were allowed (794 resolved cases), compared with 54.4% across Art Unit 3646 over the last five years.

Does an interview help with examiner Matthew M Barker?

This examiner's interview lift is +15.0 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Matthew M Barker take to allow a patent?

Applications allowed by Matthew M Barker took 1,161 days on average from filing to allowance.

Which art unit does examiner Matthew M Barker work in?

Matthew M Barker examines applications in Art Unit 3646 in Tech Center 3600 (Transportation, E-Commerce & Mechanical Systems).

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