Patents by Inventor Ching-Leei Yu

Ching-Leei Yu 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).

  • Curtain holder
    Patent number: 4205816
    Abstract: The present new invention relates to a "L" shape curtain holder which has a device of adjustable length at both sides, and which can be installed at the upper end of a window of any size with the up-side or the side of the holder. Within the holder there is a roller which can bring the curtain up and down by its attached rope.
    Type: Grant
    Filed: April 11, 1978
    Date of Patent: June 3, 1980
    Inventor: Ching-Leei Yu