Patent and Trademark Depository Library Program

Patent and Trademark Depository Library Program. 

If you have any question or comments about the Library Program or the services it offers, please contact:

United States Patent and Trademark Office
Crystal Park 3, Suite 461
Washington, DC 20231
Fax: (703) 306-2662

The Patent and Trademark Depository Library Program (PTDLP) administers a nationwide network of public, state and academic libraries designated as Patent and Trademark Depository Libraries (PTDLs) authorized by 35 U.S.C. 13 to:

  • Disseminate Patent and Trademark Information
  • Support Diverse Intellectual Property Needs of the Public
GENERAL INFORMATION

SERVICES

PUBLICATIONS