Reference Collections of U.S. Patents and Trademarks
Available for Public Use in Patent and Trademark Depository Libraries
The following libraries, designated as Patent and Trademark Depository
Libraries (PTDLs), receive patent and trademark information in various formats
from the U.S. Patent and Trademark Office. Many PTDLs have on file all
full-text patents issued since 1790, trademarks published since 1872, and
select collections of foreign patents. All PTDLs have both the patent and
trademark sections of the Official Gazette of the U.S. Patent and Trademark
Office. The full-text utility and design patents are distributed numerically
on 16 mm microfilm, and plant patents on color microfiche. Patent and
trademark search systems on CD-ROM (Compact Disc-Read Only) format are
available at all PTDLs to increase utilization of and enhance access to the
information found in patents and trademarks. It is through the CD-ROM systems
that preliminary patent and trademark searches can be conducted through the
numerically arranged collections.
All information is available for use by the public free of charge.
In addition, each PTDL offers reference publications which outline
and provide access to the patent and trademark classification systems, as
well as other documents and publications which supplement the basic search
tools. PTDLs provide technical staff assistance in using all materials.
Facilities for making paper copies of patent and trademark information are
generally provided for a fee.
Since there are variations in the scope of patent and trademark
collections among the PTDLs, and their hours of service to the public vary,
anyone contemplating use of these collections at a particular library is
urged to contact that library in advance about its collections, services,
and hours in order to avert possible inconvenience.
State Name of Library Telephone Contact
Alabama Auburn University Libraries (205) 844-1747
Birmingham Public Library (205) 226-3620
Alaska Anchorage: Z.J. Loussac Public Library (907) 562-7323
Arizona Tempe: Noble Library, Arizona
State University (602) 965-7010
Arkansas Little Rock: Arkansas State
Library (501) 682-2053
California Los Angeles Public Library (213) 228-7220
Sacramento: California State Library (916) 654-0069
San Diego Public Library (619) 236-5813
San Francisco Public Library Not Yet
Operational
Sunnyvale Patent Clearinghouse (408) 730-7290
Colorado Denver Public Library (303) 640-8847
Connecticut New Haven: Science Park Library (203) 786-5447
Delaware Newark: University of Delaware Library (302) 831-2965
Dist. of Columbia Washington: Howard University Libraries (202) 806-7252
Florida Fort Lauderdale: Broward County Main
Library (305) 357-7444
Miami-Dade Public Library (305) 375-2665
Orlando: University of Central Florida
Libraries (407) 823-2562
Tampa Campus Library, University
of South Florida (813) 974-2726
Georgia Atlanta: Price Gilbert Memorial Library,
Georgia Institute of Technology (404) 894-4508
Hawaii Honolulu: Hawaii State Public Library
System (808) 586-3477
Idaho Moscow: University of Idaho Library (208) 885-6235
Illinois Chicago Public Library (312) 747-4450
Springfield: Illinois State Library (217) 782-5659
Indiana Indianapolis-Marion County Public
Library (317) 269-1741
West Lafayette: Siegesmund Engineering
Library, Purdue University (317) 494-2873
Iowa Des Moines: State Library of Iowa (515) 281-4118
Kansas Wichita: Ablah Library, Wichita State
University (316) 689-3155
Kentucky Louisville Free Public Library (502) 574-1611
Louisiana Baton Rouge: Troy H. Middleton Library,
Louisiana State University (504) 388-2570
Maine Orono: Raymond H. Fogler Library,
University of Maine Not Yet
Operational
Maryland College Park: Engineering and Physical
Sciences Library, University of Maryland(301) 405-9157
Massachusetts Amherst: Physical Sciences Library,
University of Massachusetts (413) 545-1370
Boston Public Library (617) 536-5400
Ext. 265
Michigan Ann Arbor: Engineering Library,
University of Michigan (313) 764-5298
Big Rapids: Abigail S. Timme Library,
Ferris State University (616) 592-3602
Detroit Public Library (313) 833-1450
Minnesota Minneapolis Public Library and
Information Center (612) 372-6570
Mississippi Jackson: Mississippi Library Commission (601) 359-1036
Missouri Kansas City: Linda Hall Library (816) 363-4600
St. Louis Public Library (314) 241-2288
Ext. 390
Montana Butte: Montana College of Mineral
Science and Technology Library (406) 496-4281
Nebraska Lincoln: Engineering Library, University
of Nebraska-Lincoln (402) 472-3411
Nevada Reno: University of Nevada, Reno
Library (702) 784-6579
New Hampshire Durham: University of New Hampshire
Library (603) 862-1777
New Jersey Newark Public Library (201) 733-7782
Piscataway: Library of Science and
Medicine, Rutgers University (908) 445-2895
New Mexico Albuquerque: University of New Mexico
General Library (505) 277-4412
New York Albany: New York State Library (518) 474-5355
Buffalo and Erie County Public Library (716) 858-7101
New York Public Library (The Research
Libraries) (212) 930-0917
North Carolina Raleigh: D.H. Hill Library, North
Carolina State University (919) 515-3280
North Dakota Grand Forks: Chester Fritz Library,
University of North Dakota (701) 777-4888
Ohio Cincinnati and Hamilton County, Public
Library of (513) 369-6936
Cleveland Public Library (216) 623-2870
Columbus: Ohio State University
Libraries (614) 292-6175
Toledo/Lucas County Public Library (419) 259-5212
Oklahoma Stillwater: Oklahoma State University
Center for International Trade
Development (405) 744-7086
Oregon Salem: Oregon State Library (503) 378-4239
Pennsylvania Philadelphia, The Free Library of (215) 686-5331
Pittsburgh, Carnegie Library of (412) 622-3138
University Park: Pattee Library,
Pennsylvania State University (814) 865-4861
Rhode Island Providence Public Library (401) 455-8027
South Carolina Clemson University Libraries (803) 656-3024
South Dakota Rapid City: Devereaux Library, South
Dakota School of Mines and
Technology Not Yet
Operational
Tennessee Memphis & Shelby County Public Library
and Information Center (901) 725-8877
Nashville: Stevenson Science Library,
Vanderbilt University (615) 322-2775
Texas Austin: McKinney Engineering Library,
University of Texas at Austin (512) 495-4500
College Station: Sterling C. Evans
Library, Texas A & M University (409) 845-3826
Dallas Public Library (214) 670-1468
Houston: The Fondren Library, Rice
University (713) 527-8101
Ext. 2587
Utah Salt Lake City: Marriott Library,
University of Utah (801) 581-8394
Virginia Richmond: James Branch Cabell Library,
Virginia Commonwealth University (804) 828-1104
Washington Seattle: Engineering Library,
University of Washington (206) 543-0740
West Virginia Morgantown: Evansdale Library, West
Virginia University (304) 293-2510
Wisconsin Madison: Kurt F. Wendt Library,
University of Wisconsin Madison (608) 262-6845
Milwaukee Public Library (414) 286-3247
Wyoming Casper: Natrona County Public Library Not Yet
Operational