Patents by Inventor Darrin M. Wai

Darrin M. Wai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6481338
    Abstract: Apparatus for measuring ground coffee, brewing coffee and producing a foam layer on the brewed coffee that includes an elongated handle and a bowl shaped housing fixed to one axial extremity of the handle. The housing has an open top and open bottom. A cover is dimensioned and configured for sealing engagement with the open top. The cover is movable between a position that covers the open top and a second position in which the cover does not cover the open top. A porous mesh is dimensioned and configured for sealing engagement with the open bottom. A plate is dimensioned and configured for sealing engagement with the porous mesh and the plate has an aperture therein dimensioned and configured to control the pressure and velocity of coffee to thereby generate foam on the coffee brewed by the apparatus. A lower housing is dimensioned and configured for sealing engagement with the plate. The lower housing has at least one aperture for directing the flow of brewed coffee to an associated cup.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: November 19, 2002
    Assignee: Electrical and Electronics Limited
    Inventor: Darrin M. Wai