McDonald’s have been forced to relinquish its “big mac” trademark in Europe after losing a court battle with a much smaller fast food chain. In a landmark judgement, the burger giant had claimed the Supermac’s brand was too close to their own, now victory for the Irish company hands them a chance to expand into the UK and Europe. So what can small businesses learn from this if challenged by large, powerful corporates? Well knowledge of trademark law is a good start. Here’s some tips: