This book gives a systematic comparative overview of the characteristic principles of patent enforcement proceedings in the US, Japan, and Germany, i.e. the major jurisdictions where patent holders might seek for legal remedies in parallel proceedings. The book examines topics such as: survey matter of infringement, claims of the patent holder and objections of the infringer, pre-procedural measures, infringement proceedings, and procedural principles. It will be of interest to practitioners working in the field of copyright, patent, and trademark law.