Patents by Inventor Wun F. Pan

Wun F. Pan 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).

  • Watertight socket structure for use in a light bulb
    Patent number: 5620343
    Abstract: The present invention relates to a light bulb socket structure provided with sealing elements. The sealing elements, combined with conductor plates and electrical conductor wires, are arranged inside the body of the socket in such a way that the lower end of the socket is closed in a watertight manner. The inventive socket can prevent water or moisture from penetrating into the interior of the socket body and deteriorating the conductor parts of the socket.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: April 15, 1997
    Inventor: Wun F. Pan