James A. Sheridan

Inequitable Conduct

Expert Witness in Landmark Inequitable Conduct Case

In 2007, Jim Sheridan served as an expert witness in a landmark patent law court case. McKesson v. Bridge Medical significantly altered the requirements for inequitable conduct—a common defense against patent infringement claims, charging that the patent applicant made a material misstatement or omission with intent to deceive. 

While the McKesson decision was later limited by Therasense, Inc. v. Becton, Dickinson and Co.—which raised the standards for proving inequitable conduct—Mr. Sheridan continues to lecture frequently on the topic and is a highly sought-after expert witness in disputes involving inequitable conduct. He also regularly advises companies on avoiding and defending against allegations of inequitable conduct.