The lawsuit was filed on 15 April 2011 and alleges that Samsung infringed on Apple's trademarks and patents of the iPhone and iPad.[23] Samsung issued a counterclaim against Apple of patent infringement.[24] In August 2011, at The Regional Court of Düsseldorf, Apple was granted a preliminary injunction against the sale and marketing of the Samsung Galaxy Tab 10.1 across the whole of Europe excluding the Netherlands.[25] The ban has been temporarily lifted in the European Union, with the exclusion of Germany, whilst it is investigated whether or not the original injunction was appropriate.[26]