Patents by Inventor Nelson Yang

Nelson Yang 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-way elevation curtain structure
    Publication number: 20070199663
    Abstract: The present invention provides a two-way elevating curtain structure, which uses a fixed curtain rod with several pull strings to assemble the cord fabric. A control structure is used to elevate the curtains up and down. The control structure includes a first/second roll-up cord shaft, which is placed on the fixed curtain rod to help the first/second controlling components on both sides of the fixed curtain rod operate the first/second roll-up cord shaft independently. The curtain is made to elevate more smoothly.
    Type: Application
    Filed: February 27, 2006
    Publication date: August 30, 2007
    Inventor: Nelson Yang
  • Toothbrush holder
    Patent number: D248907
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: August 15, 1978
    Inventor: Nelson Yang