Case: Patents/Obviousness (P.T.A.B.)

Some challenged claims of Prolitec Inc.'s patent that relates to a diffusion device cartridge having a housing, a venturi device; an insert having a body, an inlet, and outlet zone; and a tortuous passage extending between the inlet zone and the outlet zone; are unpatentable as obvious over prior art, the Patent Trial and Appeal Board found, in an inter partes review by ScentAir Technologies LLC. The board determined that some of the challenged claims are obvious over various combinations of prior art, including prior art that discloses a reservoir assembly for storing fragrance oil and an atomizer that converts ...