Patent No. EP2981607 (titled "Effective Generation Of Tumor-Targeted T-Cells Derived From Pluripotent Stem Cells") was filed by Memorial Sloan Kettering Cancer Center on Apr 3, 2014. The application was issued on Aug 19, 2020.

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 |
|---|---|---|
| VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB | May 19, 2021 | VOSSIUS & PARTNER |
| VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB | May 19, 2021 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
| STRAWMAN | Mar 31, 2021 | CARPMAELS & RANSFORD |
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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