Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

Patents and Trademarks

Patent & Trademark basic information, databases, links for legal and status information

Patent & Trademark Resource Center [ *** WE HAVE DONE A LOT VIA EMAIL & PHONE - EVEN BEFORE COVID-19 SHUTDOWN *** ]

The STEM Library is the College Park Patent & Trademark Resource Center

PTRC logo                   PTDLP logo

STEM Library (formerly known as EPSL - Engineering & Physical Sciences Library) was designated a Patent Depository Library by USPTO in January 1984. It was renamed a Patent & Trademark Depository Library in 1990,  and then a PTRC in October 2011

Getting Started

The U.S. Government grants a patent to an inventor "to exclude others from making, using, offering for sale, or selling the invention throughout the United States or importing the invention into the United States."  A trademark is a word, phrase, symbol or design, or combination of words, phrases, symbols or designs, which identifies the source of goods or services of one party from those of another. A copyright protects works of authorship, such as writings, music, and works of art that have been tangibly expressed. See:

Patent Search Aids

Entrepreneurship/Business Links