Patent and Trademark Resource Center

The St. Louis Public Library has been designated a Patent and Trademark Resource Center (PTRC) by the U.S. Patent and Trademark Office (USPTO) and has been providing patent and trademark information to the public since 1870.

PTRC LogoWhether you have a new invention or a brand that you’ve worked hard to build, SLPL can help you protect your intellectual property. Patents protect inventions and trademarks protect brands. Other forms of intellectual property are protected by copyrights and trade secrets.

What the Library offers:

  • assistance with searching
  • helpful information
  • literature from the USPTO
  • informational books

What the Library cannot provide: 

  • legal advice
  • searching services

Helpful links:

USPTO
PTRC blog
Gateway Venture Mentoring Service
World Intellectual Property Organization


St Louis Public Library's Patent and Trademark Resource Center is located in the Science & Technology Room on the First Floor of Central Library, 1301 Olive Street.

PTRC services are available Monday-Thursday from  10 a.m. to 9 p.m., Friday & Saturday from 10 a.m. to  6 p.m. and Sunday from 1 to 5 p.m.

For more information, call 314-539-0390 or email echadderdon@slpl.org. Schedule an appointment if you want one-on-one assistance; some resources are available all the hours the Library is open, but the Librarian is not. 

Print