Patents by Inventor John Engberg

John Engberg 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).

  • Optical storage device with a stationary mass storage medium
    Patent number: 5184322
    Abstract: An optical storage device having a mass storage medium which remains stationary as data is transferred by a laser. The stationary mass storage medium permits rapid data transfer since delay due to rotation of the medium, as in a compact disk, is eliminated.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: February 2, 1993
    Inventors: Nathan Okun, John Engberg