Patents by Inventor Wai Man Yeung

Wai Man Yeung 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).

  • Clothes iron with automatic shut off system controlled by multiple switches
    Patent number: 5852279
    Abstract: A clothes iron comprises an automatic shut off system that is controlled by multiple switches. A first switch located on the iron's handle is closed when the iron is held by a user. A second switch located on the iron's heel is closed when the iron stands in the upright position. The switch on the handle prevents the automatic shut off from functioning when the iron is in use. The switch on the heel determines which of two fixed timing periods are used.
    Type: Grant
    Filed: October 2, 1996
    Date of Patent: December 22, 1998
    Assignee: Windmere Corporation
    Inventors: Chi Kin Mak, Ka Hong Wo, Wai Man Yeung