Patent No. EP3377103 (titled "Functional Antibody Fragment Complementation For A Two-Components System For Redirected Killing Of Unwanted Cells") was filed by Revitope on Nov 18, 2016. The application was issued on Mar 12, 2025.

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.
| Company | Opposition Date | Representative |
|---|---|---|
| TAKEDA PHARMACEUTICAL | Dec 17, 2021 | DOLPHIN |
| CHERRY BIOLABS | Dec 16, 2021 | MICHALSKI HUTTERMANN & PARTNER PATENTANWALTE MBB |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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