Prosecution Insights
Last updated: October 26, 2026

Matthew E Warren, USPTO Patent Examiner

Listed by the USPTO as WARREN, MATTHEW E

Tech Center 2800 • Art Units: 2800 2811 2815 2817 2892 2897

This examiner grants 88% of resolved cases

Analysis

WARREN, MATTHEW E has a substantial examination record in tech center 2800 and art unit 2800, with 1020 resolved cases. The allowance rate is 87.7%, median time to allowance is 947 days, and interview lift is 5.0%. The data show a high allowance outcome across a large record, while the interview metric indicates only a limited associated change in outcome.

Samsung Electronics Co., Ltd., Sony Group Corporation, and International Business Machines Corporation are the listed companies. The associated firms are BIRCH STEWART KOLASCH & BIRCH, LLP, Calderon Safran & Wright P.C., and FISH & RICHARDSON P.C. (TC). Applicants in electronics and computing can use the profile to set favorable expectations, with interviews treated as a focused supplement to written prosecution.

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

Performance Statistics

87.7%
Allow Rate
+19.7% vs TC avg
1,038
Total Applications
+5.0%
Interview Lift
947
Avg Prosecution Days
Based on 1020 resolved cases, 2023–2026

Rejection Statute Breakdown

1.0%
§101 Eligibility
35.3%
§102 Novelty
52.1%
§103 Obviousness
9.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18419856 SEMICONDUCTOR DEVICES AND DATA STORAGE SYSTEMS INCLUDING THE SAME Non-Final OA SAMSUNG ELECTRONICS CO., LTD.
18405361 SEMICONDUCTOR MEMORY DEVICE Non-Final OA Samsung Electronics Co., Ltd.
18684279 IMAGING DEVICE AND ELECTRONIC APPARATUS Final Rejection SONY SEMICONDUCTOR SOLUTIONS CORPORATION
18586485 ISOLATED BACKSIDE CONTACT AND PLACEHOLDER Non-Final OA INTERNATIONAL BUSINESS MACHINES CORPORATION
18429941 SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME Non-Final OA SK hynix Inc.
18460174 METHOD AND MATERIAL SYSTEM FOR HIGH STRENGTH SELECTIVE DIELECTRIC IN HYBRID BONDING Final Rejection Applied Materials, Inc.
18433934 SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF Non-Final OA Taiwan Semiconductor Manufacturing Company, Ltd.

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Frequently Asked Questions

What is examiner Matthew E Warren's allowance rate?

87.7% of resolved applications examined by Matthew E Warren were allowed (1,020 resolved cases), compared with 69.7% across Art Unit 2800 over the last five years.

Does an interview help with examiner Matthew E Warren?

This examiner's interview lift is +5.0 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 E Warren take to allow a patent?

Applications allowed by Matthew E Warren took 947 days on average from filing to allowance.

Which art unit does examiner Matthew E Warren work in?

Matthew E Warren examines applications in Art Unit 2800 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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