Seagen Inc v. Daiichi Sankyo Co Ltd

  1. April 02, 2024

    Daiichi Gets Award Nixing Seagen Cancer Drug Claims OK'd

    A Washington federal judge has refused to revive U.S. biotech company Seagen Inc.'s claims seeking billions of dollars in damages in a dispute with Japanese drugmaker Daiichi Sankyo Co. Ltd. over cancer drug patents, ruling that an arbitrator who tossed the claims did not disregard the law.

  2. March 12, 2024

    Daiichi Urges Court To OK Arbitrator's Award Against Seagan

    Japanese drugmaker Daiichi Sankyo has asked a Seattle federal judge not to toss an arbitral award refusing Seagen Inc.'s claims for billions of dollars in a dispute over cancer drug patents, saying the U.S. biotech company has incorrectly lodged a petition to vacate the award.

  3. December 04, 2023

    Seagen Looks To Revive Cancer Drug Claims In Daiichi Fight

    U.S. biotech company Seagen Inc. will look to revive its claims seeking billions of dollars in damages in a dispute with Japanese drugmaker Daiichi Sankyo Co. Ltd. over cancer drug patents, arguing that an arbitrator disregarded the "language and essence" of an underlying collaboration agreement.

  4. November 28, 2023

    Daiichi Awarded $46M Fees In Cancer Drug Patent Arbitration

    Japanese drugmaker Daiichi Sankyo Ltd. has scored nearly $46 million in fees and costs in an arbitration initiated by rival Seagen in the companies' patent dispute over cancer drug technology after the arbitrator found that the U.S. biotech company did not file its infringement claims within the six-year statute of limitations.

  5. January 20, 2023

    Daiichi Slams Seagen's Bid To Nix Cancer Drug Patent Award

    Japanese drugmaker Daiichi Sankyo urged a federal court to uphold an arbitral award nixing U.S. biotechnology company Seagen's claims seeking tens of billions of dollars in a dispute over cancer drug patents, arguing Seagen is making "unfounded scattershot attacks" on the award.

  6. November 15, 2022

    Seagen Looks To Nix Daiichi Win In Cancer Drug Dispute

    U.S. biotechnology company Seagen is looking to vacate an arbitral award nixing its claim to patents for technology used in cancer drugs filed by Japanese drugmaker Daiichi Sankyo Ltd. after their seven-year collaboration ended, calling the award "irrational" and saying the arbitrator disregarded the law.

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