Patents by Inventor John S. Hagood

John S. Hagood 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).

  • Data plotter
    Patent number: 4085407
    Abstract: A data plotter for use in a multi-channel chart recorder operable to record time-variant analog scalar components of vector data signals on a moving recording medium. The data plotter comprises stationary printing means, preferably a thermal print head, for plotting vectors and other data derived from sampled scalar components as an aid in the interpretation of their analog traces.
    Type: Grant
    Filed: April 28, 1976
    Date of Patent: April 18, 1978
    Assignee: Health Technology Laboratories, Inc.
    Inventors: Robert A. Stratbucker, John S. Hagood