Patent No. EP2245180 (titled "Methods For Determining The Risk Of Prenatal Complications") was filed by Nicolaides on Jan 26, 2009. The application was issued on Jun 18, 2014.

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 |
|---|---|---|
| BECKMAN COULTER | Mar 18, 2015 | POTTER CLARKSON |
| SIEMENS HEALTHCARE DIAGNOSTICS | Mar 18, 2015 | POTTER CLARKSON |
| ROCHE | Mar 17, 2015 | TESCHEMACHER |
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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