Patent and Trademark Depository Library

The Minneapolis Public Library 

This library has a complete file of U.S. patents from 1790 to the present. It is the only patent depository library in Minnesota.

Here, we give a brief overview of what you can find at the library. View this chapter on the Patent and Trademark Depository Library.

Hennepin County Library, Minneapolis Central

This library is the only U.S. Patent & Trademark Resource Center in Minnesota. Check out the library's patent and trademark databases online.