You can buy patent rights by notifying the United States Patent and Trademark Office (USPTO) and filing the proper forms, including a patent assignment. The USPTO only requires that the name of the original inventor be maintained, as well as the name of the person who purchased the rights.
Find and Buy Patent Rights For Sale
Have the inventor or owner of the patent assign a whole or partial interest in the patent by filing a patent assignment with the USPTO. Assignment forms are available at any branch of the USPTO or you can download them from the official Web site (see Resources below).
Hire a patent attorney or patent agent to conduct the transaction. Ask them to estimate the potential value of the patent, and to verify that all parties have filled the proper paperwork.
Pay all fees for filing and maintenance and make sure the name of the original inventor or patent holder remains on the licensing agreement for the benefit of any future buyers. Confirmation of the entire process should arrive no more than three months from the filing date.
Search for specific patent rights that are being offered for sale on any Web sites that feature patent exchanges and auctions. Many of these sites specialize in certain types of patents. For example, the company called New Idea Trade specializes in technological patents (see Resources below).