Patents by Inventor Darrel D. Joel

Darrel D. Joel 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).

  • Method for nuclear magnetic resonance imaging using deuterum as a contrast agent
    Patent number: 4893627
    Abstract: A method for in vivo NMR imaging of the blood vessels and organs of a patient characterized by using a dark dye-like imaging substance consisting essentially of a stable, high-purity concentration of D.sub.2 O in a solution with water.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: January 16, 1990
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Joseph J. Kehayias, Darrel D. Joel, William H. Adams, Harry L. Stein