Beginning in 2007, nine generic drug manufacturers filed ANDAs along with Paragraph IV certifications of non-infringement, invalidity, or unenforceability with respect to the CRESTOR patents. AstraZeneca and Shionogi (the owner of the '314 patent) filed patent infringement suits against eight manufacturers (various parent or subsidiary entities of Apotex, Aurobindo, Cobalt, Mylan, Par, Sandoz, Sun and Teva) who had challenged the '314 substance patent. The '314 patent, which expires in 2016, covers rosuvastatin calcium, the active ingredient in CRESTOR. These suits were consolidated by order of the Judicial Panel on Multidistrict Litigation and tried in the US District Court, District of Delaware. Trial commenced on February 22, 2010 before Judge Farnan and ended on March 3, 2010.
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