In its decision dated April 20, 2010 the German Federal Supreme Court (BGH) confirmed the validity of the German part of European patent EP 618 540. The patent had been revoked in its entirety by the Federal Patent Court in October 2006. In view of the importance of the patent in the field of file management, the BGH issued a special press release on the decision. Microsoft was represented before the German Federal Supreme Court by Grünecker, Kinkeldey, Stockmair & Schwanhäusser.