Englishtown, Inc. (“Englishtown”) filed a patent infringement action against Rosetta Stone, Inc. (“Rosetta Stone”) for alleged infringement of patents pertaining to language-learning products, software, online services and practice tools. Englishtown sought leave to amend its complaint to include an allegation of willfulness based solely on post-litigation knowledge and conduct. Rosetta Stone opposed the motion on the ground that the amendment would be futile.
As explained by the district court, “[t]o prevail on a claim of willful infringement, the patentee must prove that: (1) the accused infringer ‘acted despite an objectively high likelihood that its actions constituted infringement of a valid patent’; and (2) this objectively defined risk was either known or so obvious that the accused infringer should have known about it. K-Tec, Inc. v. Vita-Mix Corp., 696 F.3d 1364, 1378 (Fed. Cir. 2012).”
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