Energy Storage — US PTAB Patent Cases
38 decisions indexed
Page 1 of 2 · 38 total
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery Co., Ltd. successfully demonstrated a reasonable likelihood of success in its IPR against Ningde Amperex Technology Ltd.'s patent, focusing on obviousness under 35 U.S.C. § 103. The Board found that the petitioner adequately showed Murakami discloses key features and that combinations with Beard and Akiike were motivated and predictable.
Ascend Elements, Inc. v.Duesenfeld GmbH
Ascend Elements, Inc.'s petition against Duesenfeld GmbH's battery recycling patent was denied by the PTAB. The Board found that the Petitioner failed to demonstrate unpatentability based on obviousness or indefiniteness across all challenged claims.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery challenges Ningde Amperex Technology’s battery electrolyte patent in IPR2025‑00405. The petitioner argues the Board correctly instituted the IPR and that the Patent Owner’s request for discretionary denial should be denied. Prior art references disclose the claimed electrolyte components.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
The Patent Owner seeks Director review to overturn the Board’s decision instituting an IPR against its battery‑electrolyte patent. It contends that the Petition forfeited challenges to claims 20‑26 and that ten of the raised grounds are fatally flawed, making institution an inefficient use of resources.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery challenges Ningde Amperex’s ’910 battery electrolyte patent, asserting that 21 claims are obvious over a suite of Chinese and foreign prior‑art references. The petition seeks institution of an IPR under § 103, arguing the claims add no inventive contribution. The Board has yet to decide on institution.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery has filed a corrected IPR petition seeking cancellation of 21 claims of Ningde Amperex’s 2023 lithium‑ion battery electrolyte patent. The petition relies on multiple foreign and U.S. references that allegedly disclose the same dinitrile, trinitrile and propyl propionate compositions. The petitioner argues that the claims are obvious under 35 U.S.C. § 103.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery Co., Ltd. successfully petitioned to institute IPR proceedings against Ningde Amperex Technology Ltd.'s patent (11769910). The Board found sufficient evidence that the claims are unpatentable under 35 U.S.C. § 103 over various prior art references, including Zeng and Zhou. This ruling advances a critical battery technology dispute into trial.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery seeks Director review to overturn the Board’s decision instituting an IPR on Ningde Amperex’s lithium‑ion battery patent. The petitioner argues procedural errors, improper reliance on new evidence, and misinterpretation of prior‑art compaction‑density disclosures. It also urges denial based on parallel district‑court challenges.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery opposes Ningde Amperex’s request for Director Review, arguing the PTAB’s institution decision was proper and that no reversible error exists. The petition cites multiple prior‑art references that render all claims likely unpatentable.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
The PTAB granted institution for the petitioner's IPR challenge against U.S. Patent 12,015,118 B2, covering lithium-ion battery electrode structures. The Board found reasonable likelihood of prevailing on both anticipation (Ishigaki) and obviousness grounds over multiple prior art references.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
The PTAB denied Zhuhai CosMX Battery’s petition to review Ningde Amperex’s 10,833,363 battery electrolyte patent, finding no reasonable likelihood of success.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery challenges Ningde Amperex’s attempt to overturn a PTAB institution of a lithium‑battery patent, arguing the parallel‑petition issue is moot and the Board’s decision was proper and efficient.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
The USPTO denied Zhuhai CosMX Battery's request for Director Review of the institution decision in IPR2025-00431, leaving the institution of Ningde Amperex's battery patent intact.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
The PTAB institution decision found that the challenged claims related to lithium-ion battery electrolytes were obvious over various combinations of prior art references. The Petitioner successfully argued that a Person of Ordinary Skill in the Art would be motivated to combine elements from Zeng, Sunose, and Matsuoka to achieve improved performance. This ruling advances the scope of obviousness findings in advanced energy storage technology.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery seeks Director Review after the PTAB denied institution of an IPR challenging Ningde Amperex's lithium‑ion battery separator patent. The petitioner argues the panel misapplied inherency law, treated an apparatus claim as a method step, and used an improper evidentiary standard.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Ningde Amperex Technology successfully defended its lithium‑battery separator patent as the PTAB denied the challenger’s request for Director Review. The Board found the prior art did not disclose the required APDR values and rejected the petitioner’s expert approximations.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
The PTAB denied Zhuhai CosMX Battery’s request for Director Review of the institution denial in IPR2025‑00385 concerning battery patent 10,964,927. The denial leaves the original decision that the IPR was not instituted intact.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery Co., Ltd.'s IPR challenge against Ningde Amperex Technology Ltd. was denied by the PTAB. The Board found insufficient evidence to overcome anticipation and obviousness grounds related to lithium-ion battery separator materials.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Ningde Amperex Technology seeks to overturn the PTAB’s decision to institute an IPR filed by battery maker Zhuhai CosMX, arguing the Board relied on impermissible expert testimony and ignored teaching‑away prior art.
Zhuhai CosMX Battery Co., Ltd. v.Ningde Amperex Technology Ltd.
Zhuhai CosMX Battery Co. successfully petitioned the PTAB, leading to the institution of IPR proceedings against Ningde Amperex Technology Ltd.'s lithium-ion battery patent (11,923,498). The Board found a reasonable likelihood of success on obviousness grounds over multiple prior art references.
Shenzhen Fbtech Electronics Ltd. et al. v.LithiumHub Technologies, LLC
Shenzhen FBTech and LiTime settled their IPR against LithiumHub's battery‑technology patent before trial, prompting the PTAB to terminate the proceeding and keep the settlement confidential.
Shenzhen Fbtech Electronics Ltd. et al. v.LithiumHub Technologies, LLC et al.
Petitioners and the patent owner jointly filed a motion asking the PTAB to treat their settlement agreements as business confidential information, invoking 35 U.S.C. §317(b) and 37 C.F.R. §42.74(c). The request is presented as timely and compliant with the applicable statutes and regulations.
Shenzhen Fbtech Electronics Ltd. et al. v.LithiumHub Technologies, LLC et al.
The parties to IPR2025‑00825 settled their dispute over U.S. Patent 9,412,994 and jointly moved to terminate the inter partes review. The Board has not yet ruled on institution, and the motion cites statutory authority for termination.
Shenzhen Fbtech Electronics Ltd. et al. v.LithiumHub Technologies, LLC
LithiumHub Technologies and two Shenzhen firms settled IPR2025‑00822 concerning a solid‑state lithium battery patent, seeking dismissal of the proceeding.
Samsung Electronics Co., Ltd. et al. v.Molecular Rebar Design, LLC
Samsung successfully challenged all 16 claims of Molecular Rebar Design’s ’282 patent covering carbon‑nanotube binders for batteries. The Board found the claims obvious over prior art and adopted a construction that “discrete” does not require non‑attachment.
LG Energy Solution, Ltd. v.Molecular Rebar Design, LLC
The PTAB affirmed all claims of LG Energy Solution’s lithium‑ion battery patent after finding the challenger’s obviousness arguments unsupported. The Board emphasized that Ohata’s masterbatch embeds carbon nanotubes, preventing the required ionic attachment, and rejected the petitioner’s speculation about resin removal.
LG Energy Solution, Ltd. v.Molecular Rebar Design, LLC
LG Energy Solution initiated an IPR challenge against Molecular Rebar Design, LLC regarding patents covering battery/electrolyte materials utilizing nanotubes. The core dispute centers on whether the challenged claims are obvious over various combinations of prior art references like Bosnyak-392 and Son. Petitioner argues that a Person of Ordinary Skill in the Art (POSITA) would have been motivated to make these claimed innovations.
LG Energy Solution, Ltd. v.Molecular Rebar Design, LLC
LG Energy Solution successfully petitioned to institute an IPR against Molecular Rebar Design, LLC's battery patent (8968924). The Board found sufficient evidence of obviousness over combinations of prior art references like Ohata and Kavan. This decision allows the challenge to proceed to a full trial phase at the PTAB.
Solus Advanced Materials Co., Ltd. et al. v.SK nexilis Co., Ltd.
The PTAB denied Solus Advanced Materials' IPR challenges against SK nexilis regarding claims covering electrolytic copper foils for secondary batteries. The Board found that Petitioner failed to establish a reasonable likelihood of prevailing, particularly rejecting conclusory expert testimony used to bridge prior art gaps.
Solus Advanced Materials Co., Ltd. et al. v.SK nexilis Co., Ltd.
Solus Advanced Materials Co., Ltd.'s IPR challenge against SK nexilis Co., Ltd. was denied institution by the PTAB, despite a 'close call' on the merits. The denial hinged primarily on procedural factors related to scheduling and parallel litigation.
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