You may not have heard of each of the 10 cases highlighted over the next 10 pages. In fact you may not be familiar with any of them. They are being litigated as far apart as Tokyo and Florida, Paris and Zhejiang, and some of them on the face of it are more concerned with patents and copyright than with trade marks. But what they have in common is that they all deal with cutting-edge legal issues that are shaping the way that the courts handle trade mark disputes. As such, they are cases that IP owners, and their advisers, need to understand.