A blog about patent, copyright and trademark law in the U.S. District Court
for the Southern District of New York

Court Declines to Strike Patent Infringement Affirmative Defense of Prosecution History Estoppel as Inadequately Pled

In an August 30, 2013 ruling, Judge Alvin K. Hellerstein denied plaintiff Alcorn Communications, LLC's motion to strike defendant Marketwire, Inc.'s patent infringement affirmative defenses of prosecution history estoppel and/or prior art finding that "these allegations are too important, and too conclusory, to be answered, but no answer to an affirmative defense is required."  The Court, however, cautioned that "without greater specificity, no discovery will be allowed with respect to this defense, and the defense is likely to be stricken before trial."
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