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Ahlstrom Oyj patent opposition analysis

Latest patents of Ahlstrom Oyj New

Explore the latest patents granted to Ahlstrom Oyj, showcasing their recent innovations and technological advancements.

Last updated on: Sep 1, 2025
Patent NumberGrant DateTitleLegal Status

Get instant update for new patents of Ahlstrom Oyj

EP4178706
Aug 14, 2024Filtration MediaGranted And Under Opposition
EP4177398
Aug 14, 2024Transfer Paper For Sublimation PrintingGranted And Under Opposition
EP3186442
Jul 10, 2024Heat-Sealing Barrier PaperPatent Maintained As Amended
EP3568521
Jan 3, 2024Transfer Paper For Sublimation Printing, Comprising A Cationic AgentPatent Maintained As Amended
EP3819426
Mar 29, 2023Compostable Cellulose-Based Paper For Gas Barrier In Packaging MaterialGranted And Under Opposition
EP3568522
Nov 18, 2020Transfer Paper For Sublimation Printing, Comprising An Alkaline Earth SaltOpposition Rejected
EP3204551
Dec 5, 2018Mat And Gypsum Boards Suitable For Wet Or Humid AreasGranted And Under Opposition

Latest oppositions filed by Ahlstrom Oyj

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

Last updated on: Sep 4, 2025
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

EP3464723
Method Of Producing A Fibrous WebPAPTICMar 14, 2024
EP3732040
Method Of Producing A Fibrous Product And A Fibrous ProductPAPTICMar 7, 2024
EP3867435
Pulp-Containing Biodegradable Non-Woven Fabric And Method For Producing The SameGLATFELTER GERNSBACHFeb 1, 2024
EP3433421
Method Of Producing A Fibrous Web Containing Natural And Synthetic FibresPAPTICApr 13, 2022
EP3224411
Fiber Sheets And Structures Comprising Fiber SheetsPAPTICMay 6, 2020

Latest patents of Ahlstrom Oyj opposed by its competitors

Explore Ahlstrom Oyj'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: Sep 4, 2025
Patent NumberGrant DateTitleTotal Oppositions
EP4177398
Aug 14, 2024Transfer Paper For Sublimation Printing1
EP4178706
Aug 14, 2024Filtration Media1
EP3186442
Jul 10, 2024Heat-Sealing Barrier Paper2
EP3568521
Jan 3, 2024Transfer Paper For Sublimation Printing, Comprising A Cationic Agent1
EP3819426
Mar 29, 2023Compostable Cellulose-Based Paper For Gas Barrier In Packaging Material1
EP3568522
Nov 18, 2020Transfer Paper For Sublimation Printing, Comprising An Alkaline Earth Salt1
EP3204551
Dec 5, 2018Mat And Gypsum Boards Suitable For Wet Or Humid Areas1

Top competitors of Ahlstrom Oyj

Top competitors of Ahlstrom Oyj based on patent oppositions.