Patents by Inventor Wai-Wah Yiu

Wai-Wah Yiu 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).

  • Hair removal device with vibrating assembly
    Patent number: 6123713
    Abstract: A device for removing unwanted hair, including a hair-plucking assembly and a vibrating assembly adjacent the hair-plucking assembly, wherein the device removes hair by uprooting it while vibrating the skin to minimize discomfort.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: September 26, 2000
    Assignee: K.I.S. LTD
    Inventors: Wai-Wah Yiu, Zeev Golan
  • Hair removal device with disc assembly
    Patent number: 5976157
    Abstract: A device for removing unwanted hair, including a housing and a hair-plucking assembly, rotatably mounted to the housing, wherein the hair-plucking assembly comprises at least one disc assembly, wherein the disc assembly comprises an insert disc having at least one arm and two outer discs having at least one arm apiece, wherein the arms of the outer discs may be pressed against the arm of the insert disc to form two traps for hair.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: November 2, 1999
    Assignee: K.I.S. Ltd.
    Inventor: Wai-Wah Yiu