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IP Verse

Koss competitive analysis

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Latest patents of Koss opposed by its competitors

Explore Koss'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
EP2623529
Jul 19, 2023Elastomer Rubber And Elastomer Product That Do Not Use Vulcanization Accelerator Or Sulfur1
EP2507313
Feb 7, 2018Elastomeric Rubber And Rubber Products Without The Use Of Vulcanizing Accelerators And Sulfur2

Latest PTAB cases involving Koss

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

Last updated on: Nov 13, 2025
Proceeding NumberFiling DatePetitionerRespondentStatus

Get alerts for PTAB Cases involving Koss

IPR2022-01503Sep 30, 2022PLANTRONICSKOSSTerminated-Settled
IPR2022-01504Sep 30, 2022PLANTRONICSKOSSTerminated-Settled
IPR2022-00188Nov 15, 2021APPLEKOSSInstitution Denied
IPR2022-00053Oct 15, 2021APPLEKOSSInstitution Denied
IPR2021-00693Mar 23, 2021APPLEKOSSInstitution Denied
IPR2021-00679Mar 22, 2021APPLEKOSSInstitution Denied
IPR2021-00686Mar 22, 2021APPLEKOSSInstitution Denied
IPR2021-00626Mar 17, 2021APPLEKOSSInstitution Denied
IPR2021-00680Mar 17, 2021BOSEKOSSFinal Written Decision
IPR2021-00600Mar 7, 2021APPLEKOSSTerminated-Settled

Peer Comparison New

IP litigation analysis comparing Koss 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
KOSSAN SDN BHD - 3 - -
SEMPERIT INVESTMENTS ASIA PTE1 - - -
SYNTHOMER SDN BHD1 - - -
ZEON310 - -