PTAB grants review of Seagen patent on eve of court’s infringement ruling

The US Patent Trial and Appeal Board has agreed to review claims of a Seagen patent that Daiichi Sankyo was found to have infringed with its Enhertu (trastuzumab deruxtecan) breast cancer treatment.

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Japanese pharma company wins arbitration over cancer drug

16 August 2022 Dispute over the Enhertu began in 2019 | Antibody drug conjugate tech at issue | American Arbitration Association issued final decision.

Americas

Daiichi and AstraZeneca fight back in cancer drug dispute with Seagen

18 November 2020 Daiichi Sankyo and AstraZeneca have asked the US District Court for the District of Delaware for a declaration that their breast cancer treatment does not infringe a chemotherapy patent owned by biotechnology company Seagen.

Americas

Seagen targets Daiichi in cancer drug suit

22 October 2020 US biotechnology company Seagen has accused Japanese pharmaceutical company Daiichi Sankyo of infringing patents with a recently-approved breast cancer drug.

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PTAB grants review of Seagen patent on eve of court’s infringement ruling

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