Hamilton Beach Brands, Inc. v. f'real Foods, LLC, No. 18-1274 (Fed. Cir. 2018)Annotate this Case
The patent, entitled “Rinseable splash shield and method of use,” discloses a vessel for containing contents to be mixed that is positioned in a mixing machine and a splash shield that is positioned to shield the opening of the vessel. After the material within the vessel is mixed by a mixing element, the splash shield is separated from the vessel and rinsed by a nozzle on the mixing machine. The patent describes how the invention “provide[s] a drink mixer having a splash shield that may be automatically rinsed following mixing of each batch or beverage, preferably without disassembly or removal of any components or disposable covers.” The Patent Trial and Appeal Board upheld the patentability of claim 21 under 35 U.S.C. 103. The Federal Circuit affirmed, rejecting an argument that the Board changed claim construction theories midstream without providing the parties an opportunity to respond, and erred in construing the “nozzle” terms so as to require that the nozzles be prepositioned. Substantial evidence supports the Board’s decision ’s that Hamilton Beach did not persuasively establish a motivation to combine the prior art references to arrive at claim 21.