The dictionaries of the Langenscheidt publishing house appear in yellow. Also yellow, one of its competitors packs up its language learning software - it may not use this colour, though, decided the German Federal Supreme Court now. “Handelsblatt” talked about this decision with Dr. Holger Gauss, attorney-at-law at Grünecker. Dr. Gauss appreciates this decision: The judgment was an important signal for the economy, which spent a lot of money in trademarks. However, obtaining protection for colour marks was not easy. The German Patent and Trademark Office followed a rather restrictive approach.