Datatrak International filed suit against Medidata Solutions over a patent related to unifying data from multiple sources. 3/4, 1:2011cv00458. The patent was directed at medical clinical trial studies managing multiple information sources. Datatrak is an electronic data capture technology provider. Datatrak was the target of a 2007 patent suit brought by a clinical trial technology company called DataSci. DataSci had previously collected settlements in excess of $10M from two prior defendants.