IP Verse

Celltrion competitive analysis

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Latest oppositions filed by Celltrion

Explore patent oppositions filed by Celltrion against competitors, revealing strategic technology disputes and market positioning.

Last updated on: Oct 30, 2025
Patent NumberTitleApplicantOpposition Date

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EP4108259
Process For Concentration Of Antibodies And Therapeutic Products ThereofGENENTECHOct 4, 2024
EP3805248
Process For Concentration Of Antibodies And Therapeutic Products ThereofGENENTECHOct 16, 2023
EP2825558
Combination Therapy For The Treatment Of Ovarian CancerF HOFFMANN LA ROCHEFeb 17, 2020

Latest publications and patents of Celltrion New

Explore the latest publications and patents granted to Celltrion, showcasing their recent innovations and technological advancements.

Latest PTAB cases involving Celltrion

Discover the latest PTAB cases involving Celltrion, highlighting their recent legal challenges and patent disputes.

Last updated on: Oct 29, 2025
Proceeding NumberFiling DatePetitionerRespondentStatus

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IPR2025-00456Jan 15, 2025CELLTRIONREGENERON PHARMACEUTICALSDiscretionary Denial
IPR2024-00260Dec 14, 2023CELLTRIONREGENERON PHARMACEUTICALSTerminated-Adverse Judgment
IPR2023-00620Feb 28, 2023CELLTRIONREGENERON PHARMACEUTICALSInstitution Denied
IPR2023-00532Feb 10, 2023CELLTRIONREGENERON PHARMACEUTICALSFinal Written Decision
IPR2023-00533Feb 10, 2023CELLTRIONREGENERON PHARMACEUTICALSFinal Written Decision
IPR2023-00462Jan 17, 2023CELLTRIONREGENERON PHARMACEUTICALSTerminated-Adverse Judgment
IPR2022-00578Feb 21, 2022CELLTRIONCHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALFinal Written Decision
IPR2022-00579Feb 21, 2022CELLTRIONCHUGAI SEIYAKU KABUSHIKI KAISHA CHUGAI PHARMACEUTICALFinal Written Decision
IPR2022-00257Dec 9, 2021CELLTRIONREGENERON PHARMACEUTICALSFinal Written Decision
IPR2022-00258Dec 9, 2021CELLTRIONREGENERON PHARMACEUTICALSFinal Written Decision

Peer Comparison New

IP litigation analysis comparing Celltrion with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Oct 30, 2025
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
CELLTRION3 - 29 -
BIOGEN4 - - 12
GENENTECH - 87 - 65
REGENERON PHARMACEUTICALS3894931