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

DisputeSoft presents the fifth 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 examines the concept of patent invalidity and explores several ways in which patent claims can be can be invalidated, such as by showing anticipation, “obviousness,” lack of “enablement,” and the on-sale and public-use bars.

Click on the title to read the full article…