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IP Verse

Celgard competitive analysis

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Latest patents of Celgard opposed by its competitors

Explore Celgard's recently opposed patents, revealing key competitive challenges and strategic patent disputes in the industry. Track oppositions filed by competitors to understand technology battlegrounds and assess potential risks.

Last updated on: Nov 13, 2025
Patent NumberPublication DateTitleTotal Oppositions
EP2544841
Jul 7, 2021Biaxially Oriented Porous Membranes, Composites, And Methods Of Manufacture And Use1

Latest PTAB cases involving Celgard

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

Last updated on: Nov 12, 2025
Proceeding NumberFiling DatePetitionerRespondentStatus

Get alerts for PTAB Cases involving Celgard

IPR2015-01511Jun 25, 2015UBE MAXELLCELGARDInstitution Denied
IPR2014-00679May 9, 2014SK INNOVATIONCELGARDFinal Written Decision
IPR2014-00680May 9, 2014SK INNOVATIONCELGARDFinal Written Decision
IPR2014-00692Apr 25, 2014LG CHEMCELGARDFinal Written Decision
IPR2014-00524Mar 20, 2014MITSUBISHI PLASTICSCELGARDFinal Written Decision

Peer Comparison New

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

Last updated on: Nov 13, 2025
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
CELGARD - 1 - 5
LG CHEM - 63314
MITSUBISHI PLASTICS - - 1 -
SK INNOVATION - 1102