Patents by Inventor John Warren Carroll, III

John Warren Carroll, III 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).

  • Hand-operated scanner
    Patent number: 3978318
    Abstract: A hand-operated scanner having an inverted T-shaped extension for slideably receiving two adjacent fingers for manipulating the scanner and simultaneously allowing the operator's fingers to remain free for merchandise packaging, merchandise check-out and/or making keyboard entries by artful placement of the extension in relation to the scanner reading head.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: August 31, 1976
    Assignee: Data General Corporation
    Inventors: Frank Candilora Romeo, John Warren Carroll, III