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IP Verse

Sanofi competitive analysis

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Latest oppositions filed by Sanofi

Explore patent oppositions filed by Sanofi 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

EP3728328
Bispecific Antigen Binding ConstructARGENX BVBAJul 23, 2025
EP4226941
Pegylated Liposomes For Delivery Of Immunogen-Encoding RnaGLAXOSMITHKLINEJul 22, 2025
EP3853305
High-Purity Peg Lipids And Uses ThereofMODERNAJun 24, 2025
EP3678654
Pneumococcal Polysaccharides And Their Use In Immunogenic Polysaccharide-Carrier Protein ConjugatesMERCK SHARP & DOHMEMar 18, 2025
EP3668568
Dosage Measurement Module On Injection PenELI LILLYMar 7, 2025
EP3981437
Nucleic Acid VaccinesMODERNAMar 3, 2025
EP4023249
Nucleic Acid VaccinesMODERNAMar 3, 2025
EP4108671
Modified Nucleosides, Nucleotides, And Nucleic Acids, And Uses ThereofMODERNAFeb 28, 2025
EP4017557
Methods And Apparatus For Aspects Of A Dose Detection SystemELI LILLYNov 4, 2024
EP3134120
Compositions And Methods For Treating Cytokine-Related DisordersTHE CHILDRENS HOSPITAL OF PHILADELPHIAOct 23, 2024

Latest patents of Sanofi opposed by its competitors

Explore Sanofi'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
EP3774838
Sep 3, 2025Lixisenatide Synthesis With Capping2
EP2851087
Jun 18, 2025Stabilization Of Vaccines By Lyophilization1
EP3258992
May 28, 2025Data Collection Device For Attachment To An Injection Device2
EP3380136
Apr 30, 2025Auto-Injector2
EP3503946
Dec 11, 2024A Device For Attachment To An Injection Device1
EP2571517
Oct 16, 2024Long - Acting Formulations Of Insulins1
EP4056212
Oct 9, 2024Autoinjector1
EP3506931
Jul 31, 2024Methods For Preventing Or Treating Allergy By Administering An Il-4R Antagonist4
EP3889181
Apr 24, 2024Methods For Treating Atopic Dermatitis By Administering An Il-4R Antagonist7
EP3740267
Feb 28, 2024Packaging Container1

Latest PTAB cases involving Sanofi

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

Last updated on: Nov 14, 2025
Proceeding NumberFiling DatePetitionerRespondentStatus

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IPR2019-01658Oct 7, 2019MYLAN PHARMACEUTICALSSANOFI AVENTIS DEUTSCHLANDInstitution Denied
IPR2019-00977May 2, 2019PFIZERSANOFI AVENTIS DEUTSCHLANDTerminated-Other
IPR2019-00978May 2, 2019PFIZERSANOFI AVENTIS DEUTSCHLANDTerminated-Other
IPR2019-00979May 2, 2019PFIZERSANOFI AVENTIS DEUTSCHLANDFinal Written Decision
IPR2019-00980May 2, 2019PFIZERSANOFI AVENTIS DEUTSCHLANDTerminated-Other
IPR2019-00981May 2, 2019PFIZERSANOFI AVENTIS DEUTSCHLANDTerminated-Other
IPR2019-00982May 2, 2019PFIZERSANOFI AVENTIS DEUTSCHLANDTerminated-Other
IPR2019-00987May 2, 2019PFIZERSANOFI AVENTIS DEUTSCHLANDTerminated-Other
IPR2019-01022May 2, 2019PFIZERSANOFI AVENTIS DEUTSCHLANDTerminated-Other
IPR2019-01023May 2, 2019PFIZERSANOFI AVENTIS DEUTSCHLANDTerminated-Other

Peer Comparison New

IP litigation analysis comparing Sanofi 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
SANOFI5923 - -
CUREVAC - 62 - 1
GLAXOSMITHKLINE29112812
MODERNA57542