Patent Oppositions in cancer drugs industry

Explore the competitive field of cancer drugs where companies are constantly innovating to stay ahead. Discover the latest patent opposition trends, top companies filing and facing patent oppositions, and the most recent patents under dispute. Stay informed on patent activity in cancer drugs technology and learn how to protect your intellectual property.

Explore the top companies that have filed the most patent oppositions in the technology industry.

Explore the top companies that have faced the most patent oppositions in the technology industry.

Explore the top law firms that have filed the most patent oppositions in the technology industry.

Patent challenges are becoming increasingly common in the cancer drugs industry as companies work to protect their innovations in a highly competitive market. These legal battles can significantly impact the development and release of new technologies. Below is a list of the latest patents that have been opposed in the cancer drugs industry, offering a snapshot of the ongoing struggles over intellectual property rights. For anyone involved in this industry, understanding these patent disputes is essential for navigating its future.

Last updated on: Jan 22, 2026
Patent NumberTitleApplicantOpposition DateOpposition Name
Chimeric Antigen Receptors Targeting B-Cell Maturation AntigenTHE UNITED STATES OF AMERICADec 31, 2025BOULT WADE TENNANT
Targeted Lipid Particles For Systemic Delivery Of Nucleic Acid Molecules To LeukocytesRAMOT AT TEL AVIV UNIVERSITYDec 18, 2025KARO
Targeted Lipid Particles For Systemic Delivery Of Nucleic Acid Molecules To LeukocytesRAMOT AT TEL AVIV UNIVERSITYDec 15, 2025SANOFI
Compositions And Methods For Improving Mitochondrial Function And Treating Neurodegenerative Diseases And Cognitive DisordersAMAZENTISDec 11, 2025MICROBIOTA MED SP Z OO
Compositions And Methods For Improving Mitochondrial Function And Treating Neurodegenerative Diseases And Cognitive DisordersAMAZENTISDec 11, 2025MICROBIOTA MED SP Z OO
Anti-Pd-L1 Antibodies And Their Use To Enhance T-Cell FunctionF HOFFMANN LA ROCHENov 28, 2025SANDOZ
Uses For And Article Of Manufacture Including Her2 Dimerization Inhibitor PertuzumabF HOFFMANN LA ROCHEOct 29, 2025STORZ
Uses For And Article Of Manufacture Including Her2 Dimerization Inhibitor PertuzumabF HOFFMANN LA ROCHEOct 28, 2025LANYON OPPOSITIONS
Uses For And Article Of Manufacture Including Her2 Dimerization Inhibitor PertuzumabF HOFFMANN LA ROCHEOct 23, 2025BRAND MURRAY FULLER
Method And Compositions For Cellular ImmunotherapySEATTLE CHILDRENS HOSPITALOct 8, 2025BOULT WADE TENNANT

To stay ahead in the competitive cancer drugs industry, companies are constantly innovating. Here are the top patents facing oppositions in the cancer drugs industry. Stay informed on the latest opposition trends and learn how to protect your intellectual property.

Last updated on: Jan 22, 2026
Patent NumberPublication DateTitleApplicantTotal Oppositions
Apr 14, 2021Methods And Compositions For Treating CancerCOUGAR BIOTECHNOLOGY22
Jan 16, 2019(+)-2-[1-(3-Ethoxy-4-Methoxyphenyl)-2-Methylsulfonylethyl]-4-Acetylaminoisoindoline-1,3-Dione: Methods Of Using And Compositions ThereofCELGENE15
Mar 10, 2021Novel Antitumoral Use Of CabazitaxelSANOFI MATURE13
Aug 18, 2021Formulations Of EnzalutamideASTELLAS PHARMA12
Nov 21, 2018Formulation Of Boronic Acid CompoundsTHE UNITED STATES OF AMERICA12
Feb 17, 2021Pharmaceutical Composition For Cancer TreatmentOSAKA UNIVERSITY10
Dec 18, 2019Cabazitaxel And Its Use For Treating CancerSANOFI MATURE10
Aug 21, 2019Rapamycin Derivative For Treating Pancreas CancerNOVARTIS10
Aug 10, 2022High-Purity Quinoline Derivative And Method For Manufacturing SameEISAI R&D MANAGEMENT10
Jan 13, 2021Method Of Treating Cancer Using Immune Checkpoint InhibitorBRISTOL MYERS SQUIBB9