Prosecution Insights
Last updated: October 26, 2026

Mark T Kopec, USPTO Patent Examiner

Listed by the USPTO as KOPEC, MARK T

Tech Center 1700 • Art Units: 1692 1731 1761 1762 1796

This examiner grants 84% of resolved cases

Analysis

KOPEC, MARK T handles cases in tech center 1700 and art unit 1692. His record contains 1108 resolved cases, an allowance rate of 84.5%, and a median of 849 days to allowance. The high case volume supports a sustained view of the profile, and the allowance rate shows that allowance occurred in most resolved matters.

The interview lift is 12.9%, indicating a positive association between interviews and allowance. Practitioners may use interviews to focus written responses on the limitations that matter most to disposition. The listed companies are Toyota Motor Corporation, Semiconductor Energy Laboratory Co., Ltd., and Samsung SDI Co., Ltd. The associated firms are BIRCH STEWART KOLASCH & BIRCH, LLP, SoraIP, Inc., and Bayramoglu Law Offices LLC.

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

Performance Statistics

84.5%
Allow Rate
+19.5% vs TC avg
1,132
Total Applications
+12.9%
Interview Lift
849
Avg Prosecution Days
Based on 1108 resolved cases, 2023–2026

Rejection Statute Breakdown

1.3%
§101 Eligibility
27.6%
§102 Novelty
38.0%
§103 Obviousness
19.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19069578 CATHODE ACTIVE MATERIAL AND METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
19035884 ELECTRODE ACTIVE MATERIAL, BATTERY, AND PRODUCTION METHOD FOR ELECTRODE ACTIVE MATERIAL Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
19108337 ELECTRODE PRECURSOR COMPOSITION Non-Final OA Dyson Technology Limited
19198251 POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY Non-Final OA SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
18795973 POSITIVE ELECTRODE ACTIVE MATERIAL AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME Non-Final OA SAMSUNG SDI CO., LTD.
18724394 BINDER POLYMER FOR NONAQUEOUS SECONDARY BATTERIES, BINDER COMPOSITION FOR NONAQUEOUS SECONDARY BATTERIES, AND NONAQUEOUS SECONDARY BATTERY ELECTRODE Non-Final OA Resonac Corporation
18703517 METHOD FOR PREPARING A PRECURSOR MATERIAL FOR A LI-CONTAINING CATHODE ACTIVE MATERIAL Non-Final OA Umicore

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Frequently Asked Questions

What is examiner Mark T Kopec's allowance rate?

84.5% of resolved applications examined by Mark T Kopec were allowed (1,108 resolved cases), compared with 71.8% across Art Unit 1692 over the last five years.

Does an interview help with examiner Mark T Kopec?

This examiner's interview lift is +12.9 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Mark T Kopec take to allow a patent?

Applications allowed by Mark T Kopec took 849 days on average from filing to allowance.

Which art unit does examiner Mark T Kopec work in?

Mark T Kopec examines applications in Art Unit 1692 in Tech Center 1700 (Chemistry & Materials).

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