Patents by Inventor John H. Ladd

John H. Ladd 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).

  • Document copying apparatus
    Patent number: 4058828
    Abstract: Copying apparatus includes a document reader for generating a series of electrical signals which are representative of imagewise information in an original document, a printer device, and electrical means for (1) transforming, (2) storing, (3) processing and (4) applying the signals to the printer for producing on print material an imagewise representation of the information contained in these signals.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: November 15, 1977
    Assignee: Eastman Kodak Company
    Inventor: John H. Ladd