Patents by Inventor Yung-Lung Hsieh

Yung-Lung Hsieh 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: 6502275
    Abstract: An improved anti-explosion steam vacuum cleaner heating structure, more especially an improved heating structure for the vacuum to provide the function of dirt removal and sterilization, which includes a water chamber and a tubular heat converter to directly heat the transferred clear water pressurized by a water pump to form the steam to be discharged through the discharge port via the free end of the conduit. The volume of the steam is controlled according to the volume of the water flow.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: January 7, 2003
    Assignee: Ye Jen Co., Ltd
    Inventor: Yung-Lung Hsieh