Patents by Inventor Dean T. S. Wu

Dean T. S. Wu 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).

  • Wind resistant umbrella
    Patent number: 3930514
    Abstract: A conventional umbrella has three hooks mounted upon each of its downwardly extending ribs. The first hook is located at the bottom of the rib. The second hook is located at the connection point of the rib and one of the elongated struts used to open and close the umbrella. The third hook is located on the same rib intermediate the first and second hooks. A flexible cable is attached to the first hook, passes or extends through the second and third hooks and is then attached to the center pole of the umbrella.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: January 6, 1976
    Assignee: Raymond Lee Organization Inc.
    Inventor: Dean T. S. Wu