Inequitable Conduct: Prior Device Material to Method Claim?

A court has struck an inequitable conduct defense as inadequately pled because, said the court, the allegedly withheld prior art directed to a device was not material to a patent claim directed to a method for manufacturing a simi… Read More

What Facts Support Inequitable Conduct at the Patent Office?

Here is an interesting case addressing whether the affirmative defense of inequitable conduct was adequately plead as an affirmative defense in answer to a complaint for patent infringement.  In Music Choice v. Stingray Digital G… Read More

Don’t-Ask-Don’t-Tell Approach Meets Intent Requirement for Inequitable Conduct

The filer of a petition to revive an expired patent met the intent prong of the test for inequitable conduct by acting with at best willful ignorance; the filer certified that a failure to pay a maintenance fee was unintentional w… Read More

No Intent to Deceive, No Inequitable Conduct

The Federal Circuit has reversed a finding of inequitable conduct where “the record contains no evidence of a deliberate decision to withhold those references from the PTO as required under Therasense, Inc. v. Becton, Dickin… Read More

Inequitable Conduct After Therasense: Definitely Harder to Prove

Specific intent to deceive the USPTO did not exist where an inventor removed mention of a reference from his patent application, and then testified that the “reference was cumulative or merely provided background information… Read More

Impact of Therasense: Defendant Denied Motion to Plead Inequitable Conduct

In Pixion, Inc. v. Citrix Systems, Inc., No. C 09-03496 (N.D. Cal. April 16, 2012), the court denied Citrix’s motion for leave to amend its Answer to plead the affirmative defense of inequitable conduct because Citrix could… Read More

Inequitable Conduct After Therasense Does Not Always Require "But-for" Materiality

Even under the heightened “but-for” materiality standard for proving inequitable conduct in patent prosecution set forth by the Federal Circuit in Therasense, Inc. v. Becton, Dickinson & Co., 649 F.3d 1276, 1287 (F… Read More

Upcoming Webinar

The August webinar will feature a special guest, Stephen Dargitz, of Manion, Gaynor and Manning.  Stephen is a trial lawyer based in Wilmington Delaware, who with Thomas Bejin will discuss the impact of TC Heartland v. Kraft Foods along with partic…Register

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