The weekly litigation news digest is live. Subscribe now

IP Verse

Chugai Seiyaku Kabushiki Kaisha Chugai Pharmaceutical competitive analysis

Latest PTAB cases involving Chugai Seiyaku Kabushiki Kaisha Chugai Pharmaceutical

Discover the latest PTAB cases involving Chugai Seiyaku Kabushiki Kaisha Chugai Pharmaceutical, highlighting their recent legal challenges and patent disputes.

Last updated on: Jan 11, 2026
Proceeding NumberFiling DatePetitionerRespondentStatus

Get alerts for PTAB Cases involving Chugai Seiyaku Kabushiki Kaisha Chugai Pharmaceutical

IPR2022-00578Feb 21, 2022CELLTRIONCHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALFinal Written Decision
IPR2022-00579Feb 21, 2022CELLTRIONCHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALFinal Written Decision
IPR2022-00201Nov 24, 2021FRESENIUS KABI USACHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALTerminated-Settled
IPR2021-01542Sep 24, 2021FRESENIUS KABI USACHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALTerminated-Settled
IPR2021-01288Aug 18, 2021FRESENIUS KABI USACHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALTerminated-Settled
IPR2021-01336Aug 18, 2021FRESENIUS KABI USACHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALTerminated-Settled
IPR2021-01024Jun 28, 2021FRESENIUS KABI USACHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALTerminated-Settled
IPR2021-01025Jun 28, 2021FRESENIUS KABI USACHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALTerminated-Settled

Peer Comparison New

IP litigation analysis comparing Chugai Seiyaku Kabushiki Kaisha Chugai Pharmaceutical with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Jan 8, 2026
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
CHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICAL - - - 8
CELLTRION3 - 29 -
FRESENIUS KABI USA - - 265