Patent Litigation: An Introduction to Patent Claims, “Limitations,” Infringement, and Invalidity — Part Three

DisputeSoft presents the third in a series of articles authored by our colleague Andrew Schulman, who introduces readers to patent claims and the role of those claims in patent litigation. The articles are drawn from Andrew’s book, Claim Charts: Marshalling Facts in Patent Litigation, currently in preparation for publication, and are also available on Andrew’s website,

In this article, Andrew describes the process of using a patent claim as a checklist to investigate patent infringement by conducting a limitation-by-limitation walk-through of a software patent claim, including important nuances such as negative limitations, interconnections between limitations, and differences in nomenclature.

Click on the title to read the full article…