Patent No. EP1926829 (titled "Labelled Modified Guanine-Containing Nucleosides And Nucleotides Comprising A Fluorophore Attached To The Base Through A Linking Group Comprising A Polyethylene Glycol Spacing Group And Methods For Their Use") was filed by Illumina Cambridge on Aug 18, 2006. The application was issued on Jul 19, 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 |
|---|---|---|
| KILGER, CHRISTIAN | Apr 28, 2015 | CH KILGER ANWALTSPARTNERSCHAFT 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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