28/06/2011 (Agence Europe) - EPO again at the top of the tree. For the second consecutive year, the European Patent Office (EPO), which is headquartered in Munich, Germany, has been ranked first among the world's five largest patent offices for the quality of its delivery of patents. It retained its top spot in a survey conducted by Thomson Reuters and the Intellectual Asset Management magazine among companies and professionals. (Gp/transl.rt)