The Patent Trial and Appeal Board said that challenged claims of The Procter & Gamble Company’s patent directed to deodorant compositions and methods of making the compositions are unpatentable as obvious over prior art, in an inter partes review by Dr. Squatch LLC. According to the board, the challenged claims are obvious over various combinations of prior art, including prior art that provides an anhydrous personal care composition, that discloses a deodorant formulation, and that describes a study that evaluated the effectiveness of baking soda as an underarm deodorant in 90 patients.