Industry Sector
Battery recycling — US PTAB Patent Cases
2 decisions indexed
Page 1 of 1 · 2 total
patent · Jul 3, 2025
Ascend Elements, Inc. v.Duesenfeld GmbH
· PGR2025-00037
Ascend Elements has filed a PGR petition seeking cancellation of Duesenfeld’s battery‑recycling patent. The petition alleges obviousness over multiple prior‑art references and indefiniteness of key claim language.
patent · May 21, 2024
Ascend Elements, Inc. v.Duesenfeld GmbH
· IPR2024-00948
Ascend Elements challenges Duesenfeld GmbH's battery recycling patent (11050097) by asserting that the claims are obvious under 35 U.S.C. § 103. The petitioner argues that combining prior art references, such as Hanisch with Meador and Shin, renders the claimed features predictable for a Person of Ordinary Skill in the Art.
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