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IP Verse

Daicel competitive analysis

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Latest oppositions filed by Daicel

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

Last updated on: Nov 13, 2025
Patent NumberTitleApplicantOpposition Date

Get instant updates on new opposition filings by the company

EP3679182
High Dpf Cellulose Acetate Tow And Process For MakingACETATEDec 20, 2024
EP3075667
Method For Producing A Fiber BaleACETATESep 28, 2018

Latest patents of Daicel opposed by its competitors

Explore Daicel'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: Nov 13, 2025
Patent NumberPublication DateTitleTotal Oppositions
EP3117724
Apr 2, 2025Cellulose Acetate Tow Band For Use In Cigarette Filters, Cigarette Filter, Tow Band Production Apparatus, And Tow Band Production Method1
EP3575328
Nov 27, 2024Cellulose Acetate, Cellulose Acetate Composition, Molded Article, And Film1
EP3653765
Jun 19, 2024Cellulose Acetate Tow Band, And Method For Producing Cellulose Acetate Tow Band3
EP4085770
Mar 20, 2024Tow Band For Smoking Article, Filter For Smoking Article, Smoking Article, And Cartridge For Smoking Article2
EP3508301
Dec 13, 2023Metal Molded Body Surface Roughening Method1
EP4026851
Dec 13, 2023Cellulose Acetate And Cellulose Acetate Composition2
EP3821733
Nov 22, 2023Tow Band For Electronic Cigarette Tip, Electronic Cigarette Tip, And Production Method Of Tow Band For Electronic Cigarette Tip1
EP3939444
Sep 6, 2023Aerosol Cooling Member1
EP3862388
Jul 26, 2023Cellulose Acetate And Cellulose Acetate Composition2
EP3369722
Oct 5, 2022Acetic Acid Production Method1

Latest PTAB cases involving Daicel

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

Last updated on: Nov 16, 2025
Proceeding NumberFiling DatePetitionerRespondentStatus

Get alerts for PTAB Cases involving Daicel

IPR2019-00313Nov 12, 2018CELANESEDAICELTerminated
IPR2017-00162Oct 31, 2016CELANESEDAICELTerminated
IPR2017-00163Oct 31, 2016CELANESEDAICELFinal Written Decision
IPR2017-00164Oct 31, 2016CELANESEDAICELTerminated
IPR2017-00165Oct 31, 2016CELANESEDAICELFinal Written Decision
IPR2017-00166Oct 31, 2016CELANESEDAICELFinal Written Decision
IPR2015-00170Oct 28, 2014DAICELCELANESEFinal Written Decision
IPR2015-00171Oct 28, 2014DAICELCELANESEFinal Written Decision
IPR2015-00173Oct 28, 2014DAICELCELANESEFinal Written Decision
IPR2014-01514Sep 17, 2014DAICELCELANESEInstitution Denied

Peer Comparison New

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

Last updated on: Nov 13, 2025
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
DAICEL22956
ACETATE46 - -
CELANESE16965
CERDIA111 - -