Patents by Inventor Harald Willy Werlich

Harald Willy Werlich 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).

  • Holographic opaque document scanner
    Patent number: 4113343
    Abstract: An opaque document scanner in which a moving hologram generates a locus of points from a stationary light beam on an opaque document and the same hologram or a similar one mounted for conjoint movement collects light energy reflected from the document at each point and focuses this energy onto a stationary detector to provide electrical signals corresponding to the information scanned on the document.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: September 12, 1978
    Assignee: International Business Machines Corporation
    Inventors: Robert Vladimir Pole, Harald Willy Werlich