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Kemira Oyj competitive analysis

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Latest oppositions filed by Kemira Oyj

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

Last updated on: Oct 30, 2025
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

EP4168625
Barrier Paper Or BoardSAPPI NETHERLANDS SERVICESSep 25, 2025
EP2748373
Method For Increasing The Advantages Of Strength Aids In The Production Of Paper And PaperboardASHLAND LICENSINGNov 21, 2024
EP3784833
Heat-Sealable Paperboard Structures And Associated Paperboard-Based ContainersWESTROCK MWVOct 24, 2024
EP3807088
Coated Paperboard And A Tray Made TherefromWESTROCK MWVOct 24, 2024
EP3497282
Compostable Paperboard With Oil, Grease, And Moisture ResistanceWESTROCK MWVOct 10, 2024
EP3710634
Water-Based Coatings For Cellulosic SubstratesSUN CHEMICALFeb 2, 2024
EP3867435
Pulp-Containing Biodegradable Non-Woven Fabric And Method For Producing The SameGLATFELTER GERNSBACHFeb 2, 2024
EP3271297
Control System And Process For Nitrogen And Phosphorus RemovalENVIRONMENTAL OPERATING SOLUTIONSAug 23, 2023
EP3497283
Oil, Grease, And Moisture Resistant PaperboardWESTROCK MWVMay 3, 2023
EP3774573
Biodegradable And Compostable Food Packaging Unit From A Moulded Pulp Material With A Cellulose-Base Laminate Layer, And Method For Manufacturing Such Food Packaging UnitHUHTAMAKI MOLDED FIBER TECHNOLOGYDec 2, 2022

Latest patents of Kemira Oyj opposed by its competitors

Explore Kemira 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: Oct 30, 2025
Patent NumberGrant DateTitleTotal Oppositions
EP3169844
May 7, 2025Method For Preventing Scale Formation1
EP3899136
Dec 21, 2022A Process For Producing Paper Or Board And A Product Thereof2
EP2609990
Jun 1, 2022Method For Preventing Microbial Growth On Filtration Membrane1
EP3313908
Aug 11, 2021A Method For Producing A Material With A Network Of At Least Two Polymers, A Product Thereof And Use Of The Product1
EP3240618
Apr 21, 2021Defoaming Compositions Comprising Hydroxy Terminated Siloxanes And Methods Of Making And Using The Same1
EP2678436
Nov 4, 2020Method For Preventing Bacterial Infection In A Fermentation Process1
EP3454656
Sep 23, 2020Use Of A Composition And Method For Reducing Bacterial Spores In Pulp Suspension1
EP2978894
May 2, 2018Process For Production Of Paper Or Board1
EP3090024
Mar 28, 2018Filler Aggregate Composition And Its Production1
EP3090099
Feb 21, 2018A Method For Providing A Pretreated Filler Composition And Its Use In Paper And Board Manufacturing1

Latest publications and patents of Kemira Oyj New

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

Last updated on: Oct 23, 2025
Publication NumberPublication DateTitleLegal Status

Get instant update for new patents of Kemira Oyj

EP3169844
May 7, 2025Method For Preventing Scale FormationPatent Maintained As Amended
EP3899136
Dec 21, 2022A Process For Producing Paper Or Board And A Product ThereofGranted And Under Opposition
EP2609990
Jun 1, 2022Method For Preventing Microbial Growth On Filtration MembraneGranted And Under Opposition
EP3313908
Aug 11, 2021A Method For Producing A Material With A Network Of At Least Two Polymers, A Product Thereof And Use Of The ProductGranted And Under Opposition
EP3240618
Apr 21, 2021Defoaming Compositions Comprising Hydroxy Terminated Siloxanes And Methods Of Making And Using The SameRevoked
EP2678436
Nov 4, 2020Method For Preventing Bacterial Infection In A Fermentation ProcessRevoked
EP3454656
Sep 23, 2020Use Of A Composition And Method For Reducing Bacterial Spores In Pulp SuspensionRevoked
EP2978894
May 2, 2018Process For Production Of Paper Or BoardOpposition Rejected
EP3090024
Mar 28, 2018Filler Aggregate Composition And Its ProductionRevoked
EP3090099
Feb 21, 2018A Method For Providing A Pretreated Filler Composition And Its Use In Paper And Board ManufacturingRevoked

Latest PTAB cases involving Kemira Oyj

Discover the latest PTAB cases involving Kemira Oyj, highlighting their recent legal challenges and patent disputes.

Peer Comparison New

IP litigation analysis comparing Kemira Oyj with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Oct 30, 2025
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
KEMIRA OYJ2613 - -
BASF220214713
ECOLAB USA2242 - 2
WESTROCK MWV - 8 - 1