Yhdysvaltain patentti- ja tavaramerkkiviraston (USPTO) sivusto.
The role of the US Patent and Trademark Office (USPTO) is to promote the progress of science and the useful arts, by securing for inventors the exclusive right to their respective discoveries for a limited time. By disseminating both patent and trademark information, the USPTO promotes the understanding of intellectual property protection and helps to facilitate the development and sharing of new technologies worldwide.