Application of the Brussels I Regulation to applications for panEU patent infringement relief. A User's Guide to Patents.All inventors aboard on your international patent application? Benefits of early filing depend on complete ownership of rights. IPRs are national or regional (ie EU) rights whose infringement is a matter for national (or regional) laws. Member States that participate in the UPCA, as opposed to the traditional European patent, which has effect as a bundle of national patents. Many patent offices provide a specific form to fill in. In some patent offices, you can file a patent application on line. The plaintiff argued that Cook, through a Dutch subsidiary, was infringing its patents in the other European countries. Proceedings have delayed many patent infringement cases in the district courts and have invalidated many patents involved in those litigations.