Patents by Inventor Ping-Shi Wang

Ping-Shi Wang 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).

  • Pants cleaning and sterilizing apparatus
    Patent number: 5384933
    Abstract: A pants cleaning and sterilizing apparatus, which includes a housing for receiving the user's leg, two rotary brushes turned in reversed directions by a motor drive to remove dust from the bottom of the pants upon the insertion of the user's foot, a sterilizing device for sterilizing the pants, a dust collecting drawer disposed inside the housing at the bottom for collecting dust, and an induced-draft fan for drawing away air from the housing to let dust be gathered in the dust collecting drawer.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: January 31, 1995
    Inventor: Ping-Shi Wang