The parties filed cross-motions for summary on the issue of inequitable conduct. The district court had previously denied summary judgment motions on the issue of inequitable conduct but that was prior to the Federal Circuit’s decision in Therasense, Inc. v. Becton Dickinson and Co., 649 F.3d 1276 (Fed. Circ. 2011) (en banc). The district court granted the parties request to re-brief the issue in light of Therasense.
The plaintiff asserted on its renewed summary judgment motion that there was insufficient evidence of specific intent to deceive the Patent and Trademark Office (“PTO”). The defendant did not dispute that there was no direct evidence of specific intent in the case. Instead, the defendant relied on circumstantial evidence, arguing that the only logical inference from the evidence is one of intent to deceive the PTO. To make this argument, the defendant relied on the fact that two of the inventors knew of two significant references and failed to disclose them to the PTO. The district court noted, relying on Therasense, that “[p]roving that the applicant knew of a reference, should have known of its materiality, and decided not to submit it to the PTO does not prove specific intent to deceive.” 649 F.3d at 1290. Based on this quote from Therasense, the district court concluded that the mere fact that the inventors failed to disclose these references was insufficient to defeat summary judgment in favor of the plaintiff.
Continue reading