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.

The Library is open Monday, Tuesday, Friday, Saturday from 11 a.m. to 5 p.m. and Wednesday & Thursday from 1 p.m. to 7 p.m.

At this time, patent & trademark research is limited to 1 hour a day. For more information, to schedule an appointment, or to check when librarian assistance is available, please call 314-539-0390 or email echadderdon@slpl.org, opens a new window.

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