Skip to main content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

Waidner-Spahr Library

Please see our Library Services Updates: Fall 2020 website for the most up-to-date information about using library services remotely.

Chemistry: Finding Patents

Patent Databases

Use these databases for finding patents in chemistry. 

Patent searching tips

Approximately 80% of patents contain information published nowhere else, but patents can be very difficult to find. In fact, some patents are deliberately designed to be hard to retrieve in a patent search. 

In addition, names used in patents may change over time, and the owner of the patent, or assignee, may change as well. 

Try following these tips when beginning a patent search:

  • Find as much information as you can about the drug: alternate names, patent holder, and approximate dates
  • Try a keyword search for the most common names, combined with the patent holder as assignee
  • Make use of the patent citations 

Subject Guide

Nick Lonergan's picture
Nick Lonergan