Patent No. EP4128145 (titled "Combining Angiographic Information With Fluoroscopic Images") was filed by Brainlab on Apr 13, 2022. The application was issued on Aug 23, 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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