Patent: A Patent is a grant from the U.S. government giving an inventor the exclusive right to make, use, or sell an invention in the U.S. for a limited time (up to 20 years from the time of application for a utility or plant patent, up to 14 years for a design patent). Design, Plant, and Utility patents are all granted. Consult the document General Information Concerning Patents from the USPTO for more information.
Trademark: A Trademark, Trade Name, Service Mark is a word, name, symbol, or device used to identify goods or services used in commerce; marks used in interstate or international commerce are registered with the U.S. Patent and Trademark Office. Consult the USPTO document Basic Facts about Trademarks< for more information.
Treaty: A written agreement between nations, such as the Treaty of Rome (1957) that was the foundation of the European Union.