ATTENTION: We are currently in the process of moving to our new website located at http://www.lib.purdue.edu/.
Please make note of this and update your bookmarks accordingly. We apologize for any inconvience.
The Engineering Library is a Patent and Trademark Depository Library (PTDL). This program provides a computer devoted to searching patents and trademarks. Free viewing and printing of full-text patents, patent applications, and trademark registrations on DVD are also available.
United States patents on DVD are available from 1790-date and patent applications are available from March 2001-date. There is no cost for using this service. The Engineering Library also has full color plant patents available on paper and microfiche for use in the library.
U.S. patents can also be searched on the web from the United States Patent and Trademark Office (USPTO). Issued Patents are loaded each Tuesday while Published Applications are loaded each Thursday. Publications on DVD arrive at the Engineering Library a few weeks after the patent documents are loaded. Presently, the site requires a TIFF viewer that is available on the site. Pages are printed one at a time.
See this page for more information about US Patents and Trademarks
Please contact Charlotte Erdmann, Engineering Librarian, for class or group instruction or to schedule individual assistance. Charlotte has extensive experience with patents and trademarks and spent 1998-1999 as a Fellowship Librarian at the USPTO.