On September 20, 2018, Flooring Industries, Unilin’s IP division, filed a new court case before the Landgericht Düsseldorf against Windmöller GmbH for infringement of European Patent EP 2 843 155. The infringement action is directed against Windmöller’s alleged infringing sales of resilient products, which are amongst others marketed under the brands Wineo Designboden and Wineo Purline Bioboden.

On September 12, 2018, Unilin filed a court case before the Landgericht Düsseldorf against Windmöller GmbH for infringement of European Patent EP 2 588 311. The infringement action is directed against Windmöller's alleged infringing sales of resilient products, which are amongst others marketed under the brand Wineo Designboden. 

On February 2, 2018, the German District Court of Düsseldorf decided that Ulrich Windmöller Consulting GmbH & Co. KG (UWC) may not offer or grant any licenses on the UWC patent rights which are based on the priority applications DE 10 2006 058 655, US 13/214,175, DE-U1-20 2011 107 236.7 and EP 2011008659.2.