Patents by Inventor Tekung Lee

Tekung Lee 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: 5132668
    Abstract: An ashtray provided with a heat sensing element, an IC plate and an amplifier for emitting an alarm sound when a cigarette supported on the ashtray has burned down close to the edge of the ashtray.
    Type: Grant
    Filed: January 3, 1991
    Date of Patent: July 21, 1992
    Inventor: Tekung Lee