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

Explore the PTAB proceeding IPR2026-00402 filed by Zhuhai CosMX Battery Co., Ltd. et al. on 2026-07-30. This includes filing dates, application numbers, tech centers, patent numbers, and current case status.

Proceeding Overview

Proceeding Number

IPR2026-00402

Filing Date

2026-07-30

Accorded Filing Date

2026-07-30

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

Stein, Jameset 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 18607737

Respondent Patent Number 12334494

External Links

Espacenet

Google Patents

Respondent Inventor Lilan ZHANG et al

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

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2003

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

2026-10-05 FILING PARTY: PATENT OWNER

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2009

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

2026-10-05 FILING PARTY: PATENT OWNER

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2022

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

2026-10-05 FILING PARTY: PATENT OWNER

Download

2007

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

2026-10-05 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. 2003-Listing of Zhuhai Huafa Group Co., Ltd. Management Team Exhibit

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

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

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

Ningde Amperex Tech. Exhibit No. 2019-European Patent Office English Translation of International Patent Publication No. WO2021174417A1 Exhibit

Ningde Amperex Tech. Exhibit No. 2014-European Patent Office English Translation of Japanese Patent Publication No. JP2018156803 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. 2001-Civil Action No. 2:26-cv-00139, Third Texas Litigation Dismissal Exhibit

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

Ningde Amperex Tech. Exhibit No. 2016-European Patent Office English Translation of Chinese Patent Publication No. CN102668221 Exhibit

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

Ningde Amperex Tech. Exhibit No. 2015-European Patent Office English Translation of Chinese Patent Publication No. CN110739487 Exhibit

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

Ningde Amperex Tech. Exhibit No. 2017-U.S. Patent Office Global Dossier Citation Record for Chinese Patent Publication No. CN114050232 Exhibit

Ningde Amperex Tech. Exhibit No. 2018- European Patent Office English Translation of Chinese Patent Publication No. CN111342129 Exhibit

Notice: Mandatory Notice NOTICE

Notice: Power of Attorney NOTICE

Notice: Notice filing date accorded NOTICE

EX1007_CN 102208590 A to Zhang Exhibit

EX1004_Curriculum Vitae of Yu Zhu, Ph.D. Exhibit

EX1028_U.S. Patent Application Publication No. 2006/0147803 A1 Exhibit

EX1029_U.S. Patent Application Publication No. 2015/0288026 A1 Exhibit

EX1012_PubChem Datasheets (Part 1 of 2) Exhibit

Petition: as filed PETITION

EX1015_Millipore-Sigma Datasheets Exhibit

EX1019_U.S. Patent Application Publication No. 2017/0288268 Exhibit

EX1005_CN 105428720 A to Luo Exhibit

EX1012_PubChem Datasheets (Part 2 of 2) Exhibit

EX1016_U.S. Patent No. 7,304,453 Exhibit

EX1002_File history of U.S. Patent No. 12,334,494 Exhibit

EX1006_Certified English Translation of Luo Exhibit

EX1003_Declaration of Yu Zhu, Ph.D. Exhibit

EX1020_U.S. Patent Application Publication No. 2020/0099098 A1 Exhibit

EX1014_Datasheet of Copper Properties Exhibit

EX1031_Complaint Exhibit

EX1024_U.S. Patent Application Publication No. 2017/0069934 A1 Exhibit

EX1010_Certified English Translation of Li Exhibit

EX1018_Certified English Translation of Zeng Exhibit

EX1025_U.S. Patent Application Publication No. 2015/0017542 A1 Exhibit

Notice: Power of Attorney NOTICE

EX1023_U.S. Patent Application Publication No. 2015/0270578 A1 Exhibit

EX1009_CN 101714624 A to Li Exhibit

EX1011_Salomez publication Exhibit

EX1027_English Translation of Tan Exhibit

EX1021_Japanese Unexamined Patent Appl. Publ. No. 2018-6046 to Yamamoto Exhibit

EX1032_Order Exhibit

EX1030_U.S. Patent Application Publication No. 2020/0153047 A1 Exhibit

EX1001_U.S. Patent No. 12,334,494 Exhibit

EX1013_Data Sheets for Lithium-ion Battery Copper Foil Exhibit

EX1017_CN 106099187 A to Zeng Exhibit

EX1026_CN 205376669 U to Tan Exhibit

EX1008_Certified English Translation of Zhang Exhibit

EX1022_Certified English Translation of Yamamoto Exhibit