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Ahlstrom patent opposition analysis

Latest patents of Ahlstrom New

Explore the latest patents granted to Ahlstrom, 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

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
EP3752672
Dec 14, 2022A Method Of Manufacturing A Graphene/Graphehe Oxide Layer And A Graphene/Graphehe Oxide-Coated SupportGranted And Under Opposition
EP3577273
Apr 7, 2021Decoration Paper For LaminatesGranted And Under Opposition
EP3568522
Nov 18, 2020Transfer Paper For Sublimation Printing, Comprising An Alkaline Earth SaltOpposition Rejected
EP3312339
Jan 1, 2020Gypsum Boards Suitable For Wet Or Humid AreasGranted And Under Opposition
EP3186441
Dec 25, 2019Method For The Production Of Heat-Sealing Barrier PaperOpposition Rejected

Latest oppositions filed by Ahlstrom

Explore patent oppositions filed by Ahlstrom 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

EP3919678
Method Of Producing A Fibrous Web Containing Natural And Synthetic FibresPAPTICJul 4, 2024
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
EP3059344
A Method For Manufacturing Paper Comprising Bleached Chemithermo-Mechanical Pulp Suitable For A Release Liner And Products And Uses ThereofUPM KYMMENESep 13, 2018

Latest patents of Ahlstrom opposed by its competitors

Explore Ahlstrom'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
EP3752672
Dec 14, 2022A Method Of Manufacturing A Graphene/Graphehe Oxide Layer And A Graphene/Graphehe Oxide-Coated Support1
EP3577273
Apr 7, 2021Decoration Paper For Laminates1
EP3568522
Nov 18, 2020Transfer Paper For Sublimation Printing, Comprising An Alkaline Earth Salt1
EP3312339
Jan 1, 2020Gypsum Boards Suitable For Wet Or Humid Areas1
EP3186441
Dec 25, 2019Method For The Production Of Heat-Sealing Barrier Paper2

Top competitors of Ahlstrom

Top competitors of Ahlstrom based on patent oppositions.