The Weekly Litigation News Digest is now live. Subscribe now

IP Verse

Sefar competitive analysis

Loading summary...

Latest oppositions filed by Sefar

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

Last updated on: Nov 13, 2025
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

EP3880335
A Method For Preparing A Composite Filter Medium And The Composite Filter Medium Obtained With This MethodSAATIDec 28, 2023
EP2739472
Process For Manufacturing A Glazing Unit Having A Decorative EffectSAINT GOBAINNov 27, 2019

Latest patents of Sefar opposed by its competitors

Explore Sefar'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
EP3348393
Jun 21, 2023Composite Membrane And Method For Producing Same1
EP3231595
Sep 28, 2022Composite And Method For Producing A Composite For An Acoustic Component1
EP3366362
May 5, 2021A Protective Vent And Method For Producing A Protective Vent1
EP2986353
May 24, 2017Filter Medium1

Latest PTAB cases involving Sefar

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

Peer Comparison New

IP litigation analysis comparing Sefar 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
SEFAR24 - -
SAATI41 - -
SAINT GOBAIN167137 - -