Patents by Inventor Lee Chen-Yuan

Lee Chen-Yuan 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).

  • Two variable flush gate for lavatory reservoir
    Patent number: 4232408
    Abstract: Disclosed herein is a two variable flush gate for a flush toilet. It is a structure that, by means of adding and altering parts of elements in a traditional flush gate, can select a discharge quantity with simple operation of the discharge lever as needed so that unnecessary water consumption can be avoided.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: November 11, 1980
    Inventor: Lee Chen-Yuan