Murgitroyd's office in Durham is your go-to destination for European patent and trademark attorney services and comprehensive intellectual property solutions. Counterclaim for Revocation.European Union (EU) law drives the development of intellectual property (IP) law of the EU Member. The result has been some degree of harmonization of national laws in specific areas of IPRs. However, it is the opinion of the European Commission and many. The Federal Circuit recently clarified the law on using foreign revenue as a damages base for US patent infringement. (6). Abusive patent litigation, and especially the assertion of bad‑faith infringement claims, can harm North Carolina companies. Being creations of statute, patents exist and have effect only within the borders of the country that issued the patent. Its flexible organization lets students move freely between topics that range from copyrights, to patents, trademarks and trade secrets. Patent marking refers to the practice of indicating on a product that its underlying technology is protected through a patent.