The Detroit Public Library is a Patent and Trademark Resource Center (PTRC), supported by the United States Patent and Trademark Office (USPTO). Specialized reference services relating to patents, trademarks and copyright are provided by highly trained and knowledgeable librarians. In addition, the Library's business section is of great help for those who seek to market their inventions, products or services. All services are free and available to the public. Book and material checkout, however, is subject to DPL circulation rules.
- Two patent and trademark computers dedicated to searching
- PubWest, a powerful database only available at PTRC libraries
- Assistance and training on doing a thorough patentability search using the USPTO website and other patent searching websites
- Books, journals and databases
- Historic materials for studying the history of technology and prior art
- Referrals to business incubators and support organizations
Business, Science and Technology Dept.
Second Floor, Main Library
Detroit Public Library
5201 Woodward Avenue
Detroit, MI 48202
Phone: (313) 481-1391
Fax: (313) 481-1486
E-mail: firstname.lastname@example.org 
Tuesday-Wednesday, Noon - 8 p.m.; Thursday-Saturday, 10 a.m. - 6 p.m.; Sunday-Monday, CLOSED.
Metered street parking on Cass, Woodward, Putnam and Kirby Avenues. Free parking in the lot on the south side of the Main Library, all day on Saturdays and from 6-8 pm on Tuesdays and Wednesdays. Lot is accessible from Putnam Avenue via Cass Avenue. Customers must then use either the Cass or the Woodward entrance.