Battery technology — US PTAB Patent Cases
11 decisions indexed
Page 1 of 1 · 11 total
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
CosMX seeks Director Review to overturn the Board’s decision instituting an IPR on Ningde’s battery patent. The request argues that conflicting claim constructions in two parallel petitions require denial under the Director’s guidance and discretionary authority.
Shenzhen Fbtech Electronics Ltd. et al. v.LithiumHub Technologies, LLC
Shenzhen Fbtech and LiTime have petitioned the PTAB to invalidate LithiumHub’s 9,954,207 solid‑state lithium battery patent. They rely on prior art such as Pevear, Porsche, Poff, Grant and Koebler to argue obviousness and lack of novelty across all 21 claims.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
The PTAB denied Zhuhai CosMX Battery’s petition for inter partes review of Ningde Amperex’s lithium‑battery electrolyte patent, finding no reasonable likelihood of success on any claim.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
The PTAB denied Zhuhai CosMX Battery’s petition to invalidate Ningde Amperex’s 2020 electrolyte patent, finding no reasonable likelihood of success. The Board held that the prior art did not adequately disclose all claim elements, especially the propyl propionate ratio.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery petitions the PTAB to invalidate claims 1‑10 of Ningde Amperex’s ’927 lithium‑ion battery separator patent, alleging anticipation and obviousness over Nishikawa, Chen and Zhang. The petition seeks institution and a finding that all claims are unpatentable.
Shenzhen Fbtech Electronics Ltd. et al. v.LithiumHub Technologies, LLC et al.
Chinese challengers have filed an IPR petition seeking cancellation of all 23 claims of LithiumHub’s ‘994 starter‑battery patent, arguing obviousness over six prior‑art references and urging the Board to institute the review.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery has filed an IPR petition seeking cancellation of all 22 claims of Ningde Amperex’s U.S. Patent 11,923,498, alleging obviousness over six prior‑art references. The petition argues no discretionary factors oppose institution.
Solus Advanced Materials Co., Ltd. et al. v.SK nexilis Co., Ltd.
Solus Advanced Materials petitions an IPR against SK nexilis’s 10,811,689 patent covering electrolytic copper foil for lithium‑ion batteries, asserting that claims 1‑10 are obvious over multiple prior‑art references.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery petitions the PTAB to invalidate claims 1‑7, 12 and 14‑17 of Ningde Amperex’s ’131 lithium‑ion battery patent, asserting obviousness over multiple foreign and U.S. references.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery challenges Ningde Amperex’s 11,799,131 patent covering lithium‑ion battery electrolytes and electrode structures, seeking cancellation of claims 14‑17 on obviousness grounds.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery challenges Ningde Amperex Technology's lithium‑ion battery patent, arguing that the claimed electrolyte ratios and electrode compaction ranges are obvious in view of Zeng, Sunose, Matsuoka, Kim and other references. The petitioner seeks a finding that all 17 claims are unpatentable.
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