Patent and Trademark Resource Center Libraries (PTRCs)
- The U.S. Patent and Trademark Office (USPTO) has specially designated over 80 libraries throughout the U.S. as Patent and Trademark Resource Center Libraries (PTRC).
- PTRC Libraries are open to the public and provide specialized services
for people seeking patent and trademark information. If you have a PTRC
Library close to you, a visit to it may save you hours of searching.
- PTRC Libraries receive and make available to users:
-Utility, Design, Plant and Reissue Patents
- Reexamination Certificates
- Statutory Invention Registrations (SIRs)
-Post-issue patent status information
-The Official Gazette of the U.S. Patent and Trademark Office (both patent and trademark sections)
-All PTO search tools, indices and directories
- PTRC Libraries are required to have at least 20 years of U.S. Patents available for the public; many PTRC Libraries have much more extensive collections of patents. They also can provide assistance in accessing and using web based products available from the USPTO.
Click on the state name to see the listings for each state.
Patent and Trademark Resource Center (PTRC) Libraries State Listings:
Alabama| Alaska|Arizona| Arkansas| California| Colorado| Connecticut| Delaware| District of Columbia| Florida| Georgia| Hawaii| Idaho| Illinois| Indiana| Iowa| Kansas| Kentucky| Louisiana| Maine| Maryland | Massachusetts| Michigan| Minnesota| Mississippi| Missouri| Montana| Nebraska| Nevada| New Hampshire| New Jersey| New Mexico| New York| North Carolina| North Dakota| Ohio| Oklahoma| Oregon| Pennsylvania| Puerto Rico| Rhode Island| South Carolina| South Dakota| Tennessee| Texas| Utah| Vermont| Virginia| Washington| West Virginia| Wisconsin| Wyoming|