PATENT AND TRADEMARK DEPOSITORY LIBRARIES BY DIVISION
PTRC Libraries: Public
| State | City | Library |
| Alabama | Birmingham | Birmingham Public Library |
| Arizona | Flagstaff | Cline Library |
| Arizona | Phoenix | State Library of Arizona |
| Arkansas | Little Rock | Arkansas State Library |
| California | Los Angeles | Los Angeles Public Library |
| California | Sacramento | California State Library |
| California | San Diego | San Diego Public Library |
| California | San Jose | San Jose Public Library |
| Colorado | Denver | Denver Public library |
| Colorado | Durango | Durango Public library |
| Florida | Fort Lauderdale | Broward County Main Library |
| Florida | Miami | Miami-Dade Public Library |
| Hawaii | Honolulu | Hawaii State Library |
| Illinois | Chicago | Chicago Public Library |
| Indiana | Indianapolis | Indianapolis-Marion County Public Library |
| Iowa | Davenport | Davenport Public Library |
| Maryland | Princess Anne | Frederick Douglass Library |
| Massachusetts | Boston | Boston Public Library |
| Michigan | Detroit | Detroit Public Library |
| Minnesota | Minneapolis | Minneapolis Central Library |
| Mississippi | Jackson | Mississippi Library Commission |
| Missouri | Kansas City | Linda Hall Library |
| Missouri | St. Louis | St. Louis Public Library |
| New Jersey | Newark | Newark Public Library |
| New York | Albany | New York State Library |
| New York | Buffalo | Buffalo and Erie County Library |
| New York | New York | New York Public Library |
| New York | Rochester | Central Library of Rochester and Monroe County |
| New York | Smithtown | Smithtown Main Library |
| Ohio | Akron | Akron-Summit County Library |
| Ohio | Cincinnati | Public Library of Cincinnati and Hamilton County |
| Ohio | Cleveland | Cleveland Public Library |
| Ohio | Toledo | Toledo/Lucas County Public Library |
| Oregon | Portland | Multnomah County Library |
| Pennsylvania | Philadelphia | The Free Library of Philadelphia |
| Pennsylvania | Pittsburgh | The Carnegie Library of Pittsburgh |
| Rhode Island | Providence | Providence Public Library |
| Texas | Dallas | Dallas Public Library |
| Virginia | Harrisonburg | Rose Library |
| Wisconsin | Milwaukee | Milwaukee Public Library |
| Wyoming | Cheyenne | Wyoming State Library |
PTRC Libraries: Academic
| State | City | Library |
| Alabama | Auburn | Auburn University |
| Alabama | Tuskegee | Tuskegee University Libraries |
| Alaska | Fairbanks | Geophysical Institute, University of Alaska |
| Arizona | Tempe | Arizona State University |
| District of Columbia | Washington | Howard University |
| Florida | Orlando | University of Central Florida |
| Georgia | Atlanta | Georgia Institute of Technology |
| Georgia | Statesboro | Georgia Southern University |
| Idaho | Boise | University of Idaho College of Law Library |
| Illinois | Macomb | Western Illinois University |
| Indiana | West Lafayette | Purdue University |
| Iowa | Iowa City | University of Iowa |
| Kansas | Wichita | Wichita State University |
| Kentucky | Louisville | University of Louisville |
| Louisiana | Baton Rouge | John B. Cade Library at Southern University and A&M College |
| Louisiana | Baton Rouge | Louisiana State University |
| Maine | Orono | University of Maine |
| Maryland | College Park | University of Maryland |
| Massachusetts | Amherst | University of Massachusetts-Amherst |
| Michigan | Ann Arbor | University of Michigan |
| Michigan | Big Rapids | Ferris State University |
| Michigan | Houghton | Michigan Technological University |
| Mississippi | Mississippi State | Mississippi State University Libraries |
| Montana | Butte | Montana Tech Library of the University of Montana |
| Nebraska | Lincoln | University of Nebraska-Lincoln |
| Nevada | Las Vegas | University of Nevada – Las Vegas |
| Nevada | Reno | University of Nevada-Reno |
| New Hampshire | Concord | University of New Hampshire School of Law |
| New Jersey | Piscataway | Rutgers University |
| New Mexico | Las Cruces | New Mexico State University |
| New York | Queens | St. John’s University |
| North Carolina | Charlotte | University of North Carolina at Charlotte |
| North Carolina | Raleigh | North Carolina State University |
| North Dakota | Grand Forks | University of North Dakota |
| Ohio | Columbus | The Ohio State University |
| Oklahoma | Stillwater | Oklahoma State University |
| Oregon | Corvallis | Oregon State University Libraries and Press (OSULP) |
| Pennsylvania | University Park | Pennsylvania State University |
| Puerto Rico | Bayamon | University of Puerto Rico |
| Puerto Rico | Mayaguez | University of Puerto Rico at Mayaguez |
| South Carolina | Clemson | Clemson University |
| South Carolina | Orangeburg | South Carolina State University |
| South Dakota | Aberdeen | Northern State University |
| South Dakota | Brookings | South Dakota State University |
| Tennessee | Knoxville | The University of Tennessee Knoxville |
| Texas | Arlington | The University of Texas at Arlington |
| Texas | Austin | University of Texas at Austin |
| Texas | Brownsville | University of Texas Rio Grande Valley – Brownsville Campus |
| Texas | College Station | Texas A&M University |
| Texas | Edinburg | University of Texas Rio Grande Valley – Edinburg Campus |
| Texas | Houston | Rice University |
| Texas | Lubbock | Texas Tech University |
| Texas | Prairie View | John B. Coleman Library at Prairie View A&M University |
| Utah | St. George | Utah Tech University |
| Utah | Salt Lake City | University of Utah |
| Vermont | Burlington | University of Vermont |
| Virgin Islands | St. Thomas | University of the Virgin Islands Libraries |
| Virginia | Blacksburg | University Libraries at Virginia Tech |
| Washington | Seattle | University of Washington |
| West Virginia | Morgantown | West Virginia University |
| Wisconsin | Madison | University of Wisconsin-Madison |