Patents by Inventor Song L. Lee

Song L. 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: 4815515
    Abstract: An improved window shade structure which comprises two sets of brackets mounted on a window frame; two rollers, to be fixed on the brackets; a shade to the be fixed to rollers and having length larger than the distance between the two rollers; a driving mechanism with a motor therein to drive the shade to move and wind the shade between the two rollers; andthe window shade having a plurality of holes in various sizes along its length and being adjusted to a desirable position so as to obtain a suitable intensity of light by the function of the driving mechanism.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: March 28, 1989
    Inventor: Song L. Lee