Classen raises action against Kronotex for infringement of surface technology patent - On the 23rd of July, 2007 the Classen Group, Kaisersesch raised an action against Kronotex GmbH & Co. KG, Wittstock at the district court in Düsseldorf (File number 4b 0 165/07) for infringement of a patent for the production of surfaces for various flooring types. The Classen Group cites its European Patent EP 1 002 170 B1 in this case, which was registered on 14th October 1998 (and the registration publicised on 24th May 2000). Classen had already, at that time, ensured protection for itself with a process for producing and structuring a flooring panel where, during production of a laminate floor it is possible to do away with the décor paper and print the décor directly onto the bearer material and finally covered with a protective layer in which abrasion resistant material is mixed. Classen are of the opinion that particular products produced by Kronotex in large numbers make use of the technology in the aforementioned patent as they are produced using a sandwich construction of a printed bearer and an overlay with melamine content.