The US Court of Appeals for the Federal Circuit upheld the district court’s finding that the patents-in-suit were unenforceable due to inequitable conduct because of a failure to disclose information related to an offer for sale of the claimed invention made more than one year prior to the critical date. GS Cleantech Corp v Adkins Energy LLC, Case Nos. 16-2231, 17-1838; GS Cleantech Corp. et al. v. Big River Resources Galva, LLC et al., Case No. 17-1832 (Fed Cir. March 2, 2020) (Wallach, J.)

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