Patents by Inventor Gil Raviv

Gil Raviv 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).

  • Internal structure holography
    Patent number: 4643514
    Abstract: A method and apparatus are provided for the holographic examination of the internal features of cavities and passageways of a structure. The apparatus employs laser beam sources positioned within the structure to form a laser reference beam and laser object beam which combine in a holographic recordation means to form a hologram of the internal features of the structure, or under certain circumstances a holographic interferogram of the selected features is formed.
    Type: Grant
    Filed: July 29, 1983
    Date of Patent: February 17, 1987
    Assignee: Northwestern University
    Inventors: Gil Raviv, Michel E. Marhic, Max Epstein