Patent No. EP2548950 (titled "Reprogramming T Cells And Hematopoietic Cells") was filed by Cellular Dynamics on Jun 4, 2010. The application was issued on Oct 25, 2017.

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 |
|---|---|---|
| MATHYS & SQUIRE | Jul 25, 2018 | GREGSON |
| LONZA WALKERSVILLE | Jul 25, 2018 | EDER |
| STRAWMAN | Jul 24, 2018 | MEWBURN ELLIS |
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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