Prosecution Insights
Last updated: October 26, 2026

Michael L Dignan, USPTO Patent Examiner

Listed by the USPTO as DIGNAN, MICHAEL L

Tech Center 1700 • Art Units: 1722 1723 1725

This examiner grants 58% of resolved cases

Analysis

DIGNAN, MICHAEL L has resolved 739 cases in Tech Center 1700 and Art Unit 1722. The allowance rate is 58.1%, and the median time to allowance is 1172 days. The interview lift is 16.1%, indicating a positive association between interviews and allowance within the recorded matters.

The company portfolio includes Contemporary Amperex Technology Co., Limited, LG Energy Solution Ltd., and Toyota Motor Corporation. The listed firms are BIRCH STEWART KOLASCH & BIRCH, LLP, MAIER & MAIER, PLLC, and NIXON & VANDERHYE, PC. Counsel can use the profile to anticipate a moderate allowance result and consider interviews as part of a broader response strategy.

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

Performance Statistics

58.1%
Allow Rate
-6.9% vs TC avg
805
Total Applications
+16.1%
Interview Lift
1172
Avg Prosecution Days
Based on 739 resolved cases, 2023–2026

Rejection Statute Breakdown

0.4%
§101 Eligibility
18.0%
§102 Novelty
57.9%
§103 Obviousness
20.0%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
18308417 Battery Pack with Lanyard Receiver and Tether with Quick Attachment Final Rejection Milwaukee Electric Tool Corporation
18385949 DEVICE FOR DETERMINING WATER CONTENT STATE OF FUEL CELL STACK AND FUEL CELL VEHICLE Final Rejection SUBARU CORPORATION
18385934 POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL FOR SODIUM ION BATTERY, POSITIVE ELECTRODE MATERIAL, SOLID-STATE BATTERY, AND METHOD OF PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18838386 NEGATIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18838111 POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
18685818 Battery Cell and Battery Module Including the Same Non-Final OA LG Energy Solution, Ltd.
18570316 Electrode And Method For Preparing Same Non-Final OA LG Energy Solution, Ltd.
18290506 JIG DEVICE FOR CHARGING AND DISCHARGING SECONDARY BATTERY Final Rejection LG ENERGY SOLUTION, LTD.
17639232 METHOD OF MANUFACTURING LITHIUM METAL UNIT CELL FOR ALL-SOLID-STATE BATTERIES AND UNIT CELL MANUFACTURED USING THE SAME Final Rejection LG ENERGY SOLUTION, LTD.
18598908 TEMPERATURE RAISING CONTROLLER Non-Final OA DENSO CORPORATION
18488697 COOLING SYSTEM FOR FUEL CELL Final Rejection DENSO CORPORATION
18765077 ANTI-EXPLOSION VALVE PATCH FOR BATTERY, END COVER ASSEMBLY, BATTERY, AND ELECTRIC APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18408488 ELECTROLYTIC SOLUTION, SECONDARY BATTERY AND ELECTRICAL DEVICE CONTAINING SAME Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18408265 BATTERY MODULE, BATTERY AND ELECTRICAL APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18533219 STACKING DEVICE AND METHOD FOR MANUFACTURING STACKED TYPE ELECTRODE ASSEMBLY Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18487742 BATTERY HOUSING STRUCTURE, METHOD FOR MANUFACTURING SAME, BATTERY, AND ELECTRICAL DEVICE Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18451770 BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
17947080 BATTERY BOX, BATTERY AND ELECTRICAL DEVICE Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18511355 METHOD OF MANUFACTURING A NEGATIVE ELECTRODE ACTIVE MATERIAL Final Rejection MURATA MANUFACTURING CO., LTD.
18077705 BATTERY ENCLOSURE WITH REMOVABLE COVER SECTIONS Final Rejection Ford Global Technologies, LLC
18287568 ALL-SOLID-STATE BATTERY Final Rejection SAMSUNG ELECTRO-MECHANICS CO., LTD.
18183026 PARTITION MEMBER AND ASSEMBLED BATTERY Final Rejection Mitsubishi Chemical Corporation
18651945 COOLING STRUCTURE FOR BATTERY ASSEMBLY Non-Final OA GM Global Technology Operations LLC
18838045 Secondary Battery Binder Composition and Secondary Battery Electrode Mixture Comprising Same Non-Final OA LG Chem, Ltd.
18622476 LITHIUM METAL BATTERY AND ELECTRONIC APPARATUS Non-Final OA Ningde Amperex Technology Limited
18067125 BATTERY SHELL AND BATTERY PACK WITH SAID BATTERY SHELL Non-Final OA Ningde Amperex Technology Limited

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Frequently Asked Questions

What is examiner Michael L Dignan's allowance rate?

58.1% of resolved applications examined by Michael L Dignan were allowed (739 resolved cases), compared with 60.4% across Art Unit 1722 over the last five years.

Does an interview help with examiner Michael L Dignan?

This examiner's interview lift is +16.1 percentage points: the difference in allowance rate between resolved applications that had an examiner interview and those that did not.

How long does examiner Michael L Dignan take to allow a patent?

Applications allowed by Michael L Dignan took 1,172 days on average from filing to allowance.

Which art unit does examiner Michael L Dignan work in?

Michael L Dignan examines applications in Art Unit 1722 in Tech Center 1700 (Chemistry & Materials).

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