Zhuhai CosMX Battery Co., Ltd. et al. vs. Ningde Amperex Technology Ltd.

Explore the PTAB proceeding IPR2026-00399 filed by Zhuhai CosMX Battery Co., Ltd. et al. on 2026-07-21. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00399

Filing Date

2026-07-21

Accorded Filing Date

2026-07-21

Institution Decision Date

—

Last Modified Date

2026-10-14

Proceeding Type

IPR

Termination Date

—

Trial Status

Pending

Parties & Counsel

Petitioner

Zhuhai CosMX Battery Co., Ltd. et al.

Represented By

Eisenberg, Jasonet al

Patent Owner / Respondent

Ningde Amperex Technology Ltd.

Represented By

Douglas, Christopheret al

Tribunal & Venue

Tribunal

Patent Trial and Appeal Board (USPTO)

Technology Center

TC 1700 - Chemical & Materials Engineering

Patent Information

1 Patent Involved

Respondent Application Number 17699555

Respondent Patent Number 12374686

External Links

Espacenet

Google Patents

Respondent Inventor Xiaojing Liu

Respondent Tech Center TC 1700 - Chemical & Materials Engineering

Address and Attorney/Agent Information

11 Registered Practitioners

Power of Attorney & Correspondence

Firm / Entity Name MAIER & MAIER, PLLC

Customer Number 62008

Address 345 SOUTH PATRICK STREET, ALEXANDRIA, VA, 22314, UNITED STATES

Attorney / Agent Information

Reg #	Name	Phone
34423	Surinder Sachar	703-413-3000
40294	Michael Casey	571-278-6379
51986	Timothy Maier	703-740-8322
53255	Christopher Maier	703-740-8322
58543	Robert Madsen	703-740-8322
59241	Patrick Wamsley	703-519-9801
68584	Max Kaganov	305-807-4358
70435	Timothy Harbeck	703-740-8332
74285	Christopher Ohslund	703-740-8332
80717	Ryan Thompson	703-740-8322
L1386	Lin Chen	703-740-8322

Proceeding Documents

Petitioner's Updated Mandatory Notices NOTICE

2026-10-14 FILING PARTY: PETITIONER

Download

2008

Ningde Amperex Tech. Exhibit No. 2008-Darts IP Report for Global Cases Involving Petitioner and PO Exhibit

2026-09-29 FILING PARTY: PATENT OWNER

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2003

Ningde Amperex Tech. Exhibit No. 2003-Listing of Zhuhai Huafa Group Co., Ltd., Management Team Exhibit

2026-09-29 FILING PARTY: PATENT OWNER

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2011

Ningde Amperex Tech. Exhibit No. 2011-Global Dossier Search Record for CN113270568A Exhibit

2026-09-29 FILING PARTY: PATENT OWNER

Download

2002

Ningde Amperex Tech. Exhibit No. 2002-English Translation of Patent Wars Article Exhibit

2026-09-29 FILING PARTY: PATENT OWNER

Download

Zhuhai CosMX Battery Co., Ltd. et al. vs. Ningde Amperex Technology Ltd.

Proceeding Overview

Parties & Counsel

Petitioner

Zhuhai CosMX Battery Co., Ltd. et al.

Represented By

Patent Owner / Respondent

Ningde Amperex Technology Ltd.

Represented By

Tribunal & Venue

Patent Information

Address and Attorney/Agent Information

Power of Attorney & Correspondence

Attorney / Agent Information

Proceeding Documents

Petitioner's Updated Mandatory Notices NOTICE

Ningde Amperex Tech. Exhibit No. 2008-Darts IP Report for Global Cases Involving Petitioner and PO Exhibit

Ningde Amperex Tech. Exhibit No. 2003-Listing of Zhuhai Huafa Group Co., Ltd., Management Team Exhibit

Ningde Amperex Tech. Exhibit No. 2011-Global Dossier Search Record for CN113270568A Exhibit

Ningde Amperex Tech. Exhibit No. 2002-English Translation of Patent Wars Article Exhibit

Patent Owner's Discretionary Denial Brief RESPONSE

Ningde Amperex Tech. Exhibit No. 2005-Industrial Investment Sector Exhibit

Ningde Amperex Tech. Exhibit No. 2004-History of Zhuhai Huafa Group Co., Ltd. Exhibit

Ningde Amperex Tech. Exhibit No. 2014-U.S. Patent Publication No. US 2018/0026298 Exhibit

Ningde Amperex Tech. Exhibit No. 2022- Chinese battery makers ATL Exhibit

Ningde Amperex Tech. Exhibit No. 2013-English Translation of CosMX 2025 Semi Annual Report Exhibit

Ningde Amperex Tech. Exhibit No. 2015-Machine Translation of Japanese Patent Publication No. JP 2016018654 Exhibit

Ningde Amperex Tech. Exhibit No. 2007-Docket Navigator Report for U.S. Cases Involving Petitioner and PO Exhibit

Ningde Amperex Tech. Exhibit No. 2001-Civil Action No. 2:26-cv-00139, Third Texas Litigation Dismissal Exhibit

Ningde Amperex Tech. Exhibit No. 2012-Global Dossier Search Record for CN113097435A Exhibit

Ningde Amperex Tech. Exhibit No. 2010-English Translation of CNIP Search Record for CN112331930A Exhibit

Ningde Amperex Tech. Exhibit No. 2009-English Translation of CosMX 2026 Semi Annual Report Exhibit

Ningde Amperex Tech. Exhibit No. 2006-Application Proof for Zhuhai Kingsware Artificial Intelligence Co., Ltd. Exhibit

Petitioner's Updated Mandatory Notices NOTICE

Notice: Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Notice filing date accorded to Petition NOTICE

EX1005 - CN 108894475A (Hu) Exhibit

EX1013 - Yao, X-Y., Tab_Design_and_Failures_in_Cylindrical_Li-ion_Batteries Exhibit

EX1003 - Zhu Declaration Exhibit

EX1016 - Zhang SiC Composites as Negative Electrode for High Energy Lithium Exhibit

EX1008 - US20180040881A1 (Kusagawa) Exhibit

EX1022 - US20180366775A1 (Tao2) Exhibit

EX1011 - CN204809314U (Guo) Exhibit

EX1015 - Obrovac Alloy Negative Electrodes for Li-Ion Batteries Exhibit

EX1006 - JP2016-122628A (Takano) Exhibit

EX1009 - Zhibo Effect of Tab Position on Cylindrical Li-ion Battery Perform Exhibit

EX1021- CN101714624A (Li) Exhibit

EX1002 - '686 Patent File History (2 of 4) Exhibit

Petitioner's Power of Attorney NOTICE

EX1012 - US20180034109A1 (Wang) Exhibit

U.S. Patent No. 12,274,686 Exhibit

EX1007 - US20150207111A1 (Tao) Exhibit

Petition for Inter Partes Review of U.S. Patent No. 12,374,686 PETITION

EX1020 - Kumudinie PolymerCeramic Nanocomposites Exhibit

EX1014 - Zhao, W., Effect of tab design Exhibit

EX1018 - Ma Microrheological modeling of lithium ion battery anode slurry Exhibit

EX1019 - US20170214041A1 (Minami) Exhibit

EX1002 - '686 Patent File History (3 of 4) Exhibit

EX1010 - CN103797607B (Kakinuma) Exhibit

EX1002 - '686 Patent File History (1 of 4) Exhibit

EX1004 - Zhu CV Exhibit

EX1002 - '686 Patent File History (4 of 4) Exhibit

EX1017 - Silane Coupling Agents Exhibit