Discover how the patent system works in China. Any invention or utility model for which a patent right is to be granted shall meet the requirements of novelty, inventiveness and practical use.The validity of the patent involved is usually crucial to a patent infringement dispute. Here I outline some key defence strategies to help alleviate the pressure of facing unexpected patent litigation in China. Amazon Debuts New Pilot Program to Combat Utility Patent Infringement. LTD. Defendants. Case No. 03-0303-WHA. Therefore, in a civil case involving patent infringement, people's courts cannot directly examine the validity of the patent and declare it invalid. An invention patent is similar to a utility patent in the United States. Greenberg Traurig shareholder Joshua L. Raskin has entered an appearance for boohoo.