This subject guide provides a starting point for research in patents and trademarks at the Patent and Trademark Resource Center at the AAEL at University of Michigan . Please schedule appointment with the library contact on the left panel.
If you intend to make, use, or sell an invention of yours, you should find out whether someone else has created something like it already. You have a number of options when it comes to searching for patents. Below are some patent searching sites.
Derwent Innovations Index facilitates rapid, precise patent searching and merges the value-added patent information from Derwent World Patents Index with the patent citation information from Derwent Patent Citation Index.