EPO Oppositions

Track EPO patent oppositions in real-time. Monitor which companies are filing challenges, identify patents under dispute, and analyze opposition trends across industries.

Recent patent oppositions filed at the EPO, providing crucial intelligence for R&D strategies, competitive analysis, and litigation planning. The data is updated on a weekly basis to ensure you have access to the most current information.

Last updated on: Aug 13, 2026
Patent NumberTitleApplicantOpposition DateOpposition Name

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A Filler Compound And Use Of A Filler CompoundSAINT GOBAINAug 5, 2026KNAUF INSULATION
+ 5 more oppositions
A Filler Compound And Use Of A Filler CompoundSAINT GOBAINAug 4, 2026AECHTER
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A Filler Compound And Use Of A Filler CompoundSAINT GOBAINAug 4, 2026AKZO NOBEL
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A Filler Compound And Use Of A Filler CompoundSAINT GOBAINAug 3, 2026DANA LIM
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Method Of Treating Cancer Using Immune Checkpoint Inhibitor; Antibody That Binds To Programmed Death-1 Receptor (Pd-1) Or Programmed Death Ligand 1 (Pd-L1)BRISTOL MYERS SQUIBBJul 29, 2026STORZ
+ 8 more oppositions
Method Of Treating Cancer Using Immune Checkpoint Inhibitor; Antibody That Binds To Programmed Death-1 Receptor (Pd-1) Or Programmed Death Ligand 1 (Pd-L1)BRISTOL MYERS SQUIBBJul 28, 2026BRAND MURRAY FULLER
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Method Of Treating Cancer Using Immune Checkpoint Inhibitor; Antibody That Binds To Programmed Death-1 Receptor (Pd-1) Or Programmed Death Ligand 1 (Pd-L1)BRISTOL MYERS SQUIBBJul 28, 2026DEVA HOLDING
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Method Of Treating Cancer Using Immune Checkpoint Inhibitor; Antibody That Binds To Programmed Death-1 Receptor (Pd-1) Or Programmed Death Ligand 1 (Pd-L1)BRISTOL MYERS SQUIBBJul 28, 2026MAIWALD
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Method Of Treating Cancer Using Immune Checkpoint Inhibitor; Antibody That Binds To Programmed Death-1 Receptor (Pd-1) Or Programmed Death Ligand 1 (Pd-L1)BRISTOL MYERS SQUIBBJul 28, 2026PAJARO
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Coated Paper And Paperboard StructuresWESTROCK MWVJul 27, 2026HIGHTONE MANAGEMENT
+ 1 more opposition
Method Of Treating Cancer Using Immune Checkpoint Inhibitor; Antibody That Binds To Programmed Death-1 Receptor (Pd-1) Or Programmed Death Ligand 1 (Pd-L1)BRISTOL MYERS SQUIBBJul 27, 2026GREINER
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Glycolipid-Containing Cleansing Preparation Containing MicellesBEIERSDORFJul 22, 2026APPLEYARD LEES
+ 1 more opposition
Methods For Treating Cancer With Anti-Pd-1 AntibodiesMERCK SHARP & DOHMEJul 22, 2026ABBOTT PRODUCTION OPERATIONS
Method For Controlling A Synthesis LoopCASALEJul 21, 2026TOPSOE
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Method Of Treating Cancer Using Immune Checkpoint Inhibitor; Antibody That Binds To Programmed Death-1 Receptor (Pd-1) Or Programmed Death Ligand 1 (Pd-L1)BRISTOL MYERS SQUIBBJul 17, 2026POHLMAN
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Methods Of Treating Hfpef Employing Dapagliflozin And Compositions Comprising The SameASTRAZENECAJul 15, 2026TEVA PHARMACEUTICALS
+ 3 more oppositions
High-Bulk CtmpBILLERUD AKTIEBOLAG PUBLJul 14, 2026VALMET
+ 1 more opposition
Method Of Treating Cancer Using Immune Checkpoint Inhibitor; Antibody That Binds To Programmed Death-1 Receptor (Pd-1) Or Programmed Death Ligand 1 (Pd-L1)BRISTOL MYERS SQUIBBJul 13, 2026MANZER
+ 8 more oppositions
High-Bulk CtmpBILLERUD AKTIEBOLAG PUBLJul 9, 2026STORA ENSO OYJ
+ 1 more opposition
Hair Cosmetic CompositionKAOJul 9, 2026L'OREAL