Patent No. EP3294325 (titled "Enhancing The Effect Of Car-Engineered T Cells By Means Of Nucleic Acid Vaccination") was filed by Biontech Cell&Gene Therapies on May 9, 2016. The application was issued on Jul 26, 2023.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
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