Patent No. EP1909810 (titled "Inhibitors Of Serine Protease Activity And Their Use In Methods And Compositions For Treatment Of Graft Rejection And Promotion Of Graft Survival") was filed by The Board OF Regents OF The University OF Colorado on Jun 7, 2006. The application was issued on Aug 23, 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.
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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