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Explore patent oppositions filed by Sefar against competitors, revealing strategic technology disputes and market positioning. Monitor opposition details, timelines, and disputed innovations to understand competitive dynamics and IP enforcement strategy.

Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

EP3880335A Method For Preparing A Composite Filter Medium And The Composite Filter Medium Obtained With This MethodSAATIDec 28, 2023
EP2739472Process For Manufacturing A Glazing Unit Having A Decorative EffectSAINT GOBAINNov 27, 2019

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.

Patent NumberGrant DateTitleTotal Oppositions
EP3348393Jun 21, 2023Composite Membrane And Method For Producing Same1
EP3231595Sep 28, 2022Composite And Method For Producing A Composite For An Acoustic Component1
EP3366362May 5, 2021A Protective Vent And Method For Producing A Protective Vent1
EP2986353May 24, 2017Filter Medium1