Patents by Inventor Yu Shi Chen

Yu Shi Chen 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).

  • Quick connection lamppost
    Patent number: 7226202
    Abstract: A lamp base has a lamppost and a base. One end of the lamppost has a connection element and the base has a connection component that corresponds to a connection element. The lamp base is assembled in sequence, with first the lamppost, the connection piece, the insulation piece and then contact points. Inside the lamppost are electrical wires connected to the contact points.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: June 5, 2007
    Inventor: Yu Shi Chen