Finding that a patent’s preamble was not limiting and the patent owner’s secondary considerations of non-obviousness were weak, the US Court of Appeals for the Federal Circuit upheld a finding of obviousness by the Patent Trial and Appeal Board (PTAB). Shoes By Firebug LLC v. Stride Rite Children’s Grp., LLC, Case Nos. 19-1622, -1623 (Fed. Cir. June 25, 2020) (Lourie, J.).