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District Court: Exceptionality Found and Attorney Fees Awarded When Patent Owner Pursued Litigation With a Fraudulently Obtained Patent

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In Energy Heating, LLC v. Heat On-The-Fly, LLC, 15 F.4th 1378 (Fed. Cir. 2021), the United States Court of Appeals for the Federal Circuit affirmed the District Court of North Dakota’s finding that the case was exceptional and that the court may award reasonable attorney fees under 35 U.S.C. §285. The court found that the patent owner was granted its patent due to inequitable conduct for intentionally failing to disclose prior sales and unreasonably pursuing litigation with a fraudulently obtained patent.

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