Clash of Decades is a Registered Word Trademark ® (USPTO, EUIPO, UK IPO, WIPO, CTO*) in the USA, Canada, European Union, United Kingdom, Mainland China, Russia, India, North- and South Korea, Australia, New Zealand, Singapore, Japan. United States Patent and Trademark Office, European Union Intellectual Property Office, United Kingdom Intellectual Property Office, World Intellectual Property Organization, China Trademark Office.