Patents by Inventor Yan-Tzong Kao

Yan-Tzong Kao 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).

  • Pressure cooker
    Patent number: 6178876
    Abstract: A pressure cooker has a hollow main body, a cover disposed on a top portion of the hollow main body, an upper joint disposed on the cover, a handle connected to the upper joint, and a heating device disposed on a bottom of the hollow main body. The heating device has a bottom casing, an upper casing engaging with the bottom casing, a thermal conducting plate disposed on the upper casing, and a thermal generating device disposed between the thermal conducting plate and the bottom casing. An electric circuit board is disposed in the bottom casing. An electric control board is disposed on the upper casing.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: January 30, 2001
    Inventor: Yan-Tzong Kao