Prosecution Insights
Last updated: October 27, 2026

Michael Y Sun, USPTO Patent Examiner

Listed by the USPTO as SUN, MICHAEL Y

Tech Center 2800 • Art Units: 1725 1726 1728 1757 2844

This examiner grants 57% of resolved cases

Analysis

Sun, Michael Y works in Tech Center 2800 and Art Unit 1725. The profile covers 549 resolved cases, with an allowance rate of 57.4%. This case volume gives practitioners a useful basis for assessing prosecution expectations and planning claim amendments in the relevant technical setting.

The interview lift is 26.3%, indicating that interviews are associated with improved allowance outcomes in the reported cases. The median time to allowance is 1087 days. The listed companies are LG Energy Solution, Contemporary Amperex Technology, and Toyota. The listed firms include MAIER & MAIER, Barron & Young, and BIRCH STEWART KOLASCH & BIRCH.

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

Performance Statistics

57.4%
Allow Rate
-10.6% vs TC avg
615
Total Applications
+26.3%
Interview Lift
1087
Avg Prosecution Days
Based on 549 resolved cases, 2023–2026

Rejection Statute Breakdown

0.2%
§101 Eligibility
14.1%
§102 Novelty
62.2%
§103 Obviousness
19.4%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
19325082 SOLAR CELL MODULE Final Rejection TOYOTA JIDOSHA KABUSHIKI KAISHA
18388365 LAMINATED BATTERY, BATTERY MODULE, AND METHOD OF MANUFACTURING LAMINATED BATTERY Non-Final OA TOYOTA JIDOSHA KABUSHIKI KAISHA
19249536 PHOTOVOLTAIC POWER GENERATION SYSTEM Non-Final OA Panasonic Intellectual Property Management Co., Ltd.
19089947 SOLAR CELL MODULE AND METHOD FOR MANUFACTURING SOLAR CELL MODULE Final Rejection Panasonic Holdings Corporation
18573264 BATTERY PACK Non-Final OA LG ENERGY SOLUTION, LTD.
18289348 BATTERY PACK ASSEMBLY HAVING SHOCK ABSORPTION FUNCTION AND APPARATUS AND METHOD FOR MANUFACTURING THE SAME Non-Final OA LG ENERGY SOLUTION, LTD.
18279019 BATTERY ASSEMBLY HAVING IMPROVED SAFETY Final Rejection LG ENERGY SOLUTION, LTD.
19253704 PREPARATION METHOD OF PEROVSKITE FILM LAYER, PEROVSKITE FILM LAYER, AND SOLAR CELL Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18315483 PEROVSKITE SOLAR BATTERY AND PHOTOVOLTAIC ASSEMBLY Non-Final OA CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
17577823 POSITIVE ELECTRODE PLATE, AND LITHIUM-ION BATTERY AND APPARATUS RELATED THERETO Final Rejection CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
18409004 APPARATUS FOR CONTROLLING FUEL CELL AND CONTROL METHOD THEREOF Non-Final OA HYUNDAI MOBIS CO., LTD.
18654354 NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME Non-Final OA SAMSUNG SDI CO., LTD.
18560889 Dividing Wall Assembly for a Battery Housing, Battery and Vehicle Final Rejection Mercedes-Benz Group AG
19075024 METHOD FOR DETERMINING AN ORIENTATION OF A PHOTOVOLTAIC PANEL TO REDUCE THE DAMAGE CAUSED BY A HAIL EVENT Final Rejection TotalEnergies OneTech
18560554 HIGH TEMPERATURE INSULATION COMPOSITE Non-Final OA W. L. Gore & Associates, Inc.
19222255 PHOTOVOLTAIC MODULE SUPPORT SYSTEM AND MOUNT ASSEMBLY Non-Final OA Unirac, Inc.
19116186 THERMOELECTRIC CONVERSION ELEMENT AND SENSOR Final Rejection NITTO DENKO CORPORATION
18620055 ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS Non-Final OA Ningde Amperex Technology Limited

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Frequently Asked Questions

What is examiner Michael Y Sun's allowance rate?

57.4% of resolved applications examined by Michael Y Sun were allowed (549 resolved cases), compared with 65.5% across Art Unit 1725 over the last five years.

Does an interview help with examiner Michael Y Sun?

This examiner's interview lift is +26.3 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 Y Sun take to allow a patent?

Applications allowed by Michael Y Sun took 1,087 days on average from filing to allowance.

Which art unit does examiner Michael Y Sun work in?

Michael Y Sun examines applications in Art Unit 1725 in Tech Center 2800 (Semiconductors, Circuits & Optics).

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