"Citation Bridge" Patent Citation Tool

Citation Bridge is a free search utility from Metrics Group that lets you look up forward and backward U.S. Patent Citations on an individual patent and search back and forth through citation generations. Here is what the input and output looks like:

Click on the title listed next to each patent number in order to view the title, inventor, assignee, abstract, issue date, and application date. Recenter the output on a new patent by clicking on the patent number.