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

Last updated on: Jul 24, 2025
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

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

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: Jul 24, 2025
Patent NumberGrant DateTitleTotal Oppositions
Aug 14, 2024Transfer Paper For Sublimation Printing1
Aug 14, 2024Filtration Media1
Jul 10, 2024Heat-Sealing Barrier Paper2
Jan 3, 2024Transfer Paper For Sublimation Printing, Comprising A Cationic Agent1
Mar 29, 2023Compostable Cellulose-Based Paper For Gas Barrier In Packaging Material1
Nov 18, 2020Transfer Paper For Sublimation Printing, Comprising An Alkaline Earth Salt1
Dec 5, 2018Mat And Gypsum Boards Suitable For Wet Or Humid Areas1