Patents by Inventor William W. M. Wong

William W. M. Wong 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: 5042763
    Abstract: A device for maintaining the line of sight of a camera level comprises a hollow cylindrical standard having a plurality of equal-length rigid rods longitudinally slidably contained within said cylinder. Ball-shaped tips on opposite ends of each rod are held within circumferentially spaced-apart sockets in the base of an upper camera support cap, at the upper ends of each rod, and in within similar sockets in the upper surface of a lower base cap. Thus constructed, the upper camera support cap may be moved pivotably with respect to the lower base cap, while maintaining the plane of the upper camera support cap parallel to the lower mounting surface of the base cap.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: August 27, 1991
    Inventor: William W. M. Wong