Patents grant inventors the right to exclude others from making, using, offering for sale, importing, or selling the invention in the United States. The listings contain contact information for attorneys and agents with licenses to practice before the US Patent and Trademark Office.We're going to talk about how to file your own trademark application with the united states patent and trademark office. We offer classes and other presentations about Patents and Trademarks, as well as individual consultations about researching Patents and Trademarks. Federal Registration Requirements. In the United States, each design is considered a separate invention, and only a single invention can be protected in a single design patent. I assist clients ranging from Fortune 500 companies to start-ups and universities with chemical and biotechnology related intellectual property matters. Today, however, the America Invents Act (AIA) has dramatically altered the patent landscape in a number of ways. In the U.S. joint ownership of a trademark is legal.