IP Verse

Sefar competitive analysis

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Latest oppositions filed by Sefar

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

Last updated on: Oct 23, 2025

Patent Number	Title	Applicant	Opposition 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 Method	SAATI	Dec 28, 2023
EP2739472	Process For Manufacturing A Glazing Unit Having A Decorative Effect	SAINT GOBAIN	Nov 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: Oct 23, 2025

Patent Number	Grant Date	Title	Total Oppositions
EP3348393	Jun 21, 2023	Composite Membrane And Method For Producing Same	1
EP3231595	Sep 28, 2022	Composite And Method For Producing A Composite For An Acoustic Component	1
EP3366362	May 5, 2021	A Protective Vent And Method For Producing A Protective Vent	1
EP2986353	May 24, 2017	Filter Medium	1

Latest publications and patents of Sefar New

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

Last updated on: Oct 18, 2025

Publication Number	Publication Date	Title	Legal Status
Get instant update for new patents of Sefar
EP3348393	Jun 21, 2023	Composite Membrane And Method For Producing Same	Granted And Under Opposition
EP3231595	Sep 28, 2022	Composite And Method For Producing A Composite For An Acoustic Component	Granted And Under Opposition
EP3366362	May 5, 2021	A Protective Vent And Method For Producing A Protective Vent	Opposition Rejected
EP2811147	Jan 17, 2018	Filter Element And Heating Jacket Of A Filter Element	No Opposition Filed Within Time Limit
EP2986353	May 24, 2017	Filter Medium	Revoked

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: Oct 23, 2025

Company	Oppositions Filed	Oppositions Faced	PTAB Cases Filed	PTAB Cases Faced
SEFAR	2	4	-	-
SAATI	4	1	-	-
SAINT GOBAIN	165	136	-	-