Patents by Inventor Mark S. Chawla

Mark S. Chawla 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).

  • In vivo magnetic resonance vascular imaging using laser-polarized gas microbubbles
    Patent number: 6051208
    Abstract: Nuclear magnetic resonance (NMR) images of a human or animal subject's vascular system are enhanced by injecting a liquid comprised of a biocompatible liquid carrier and a dispersion of hyperpolarized gas microbubbles into the subject, followed by generating an image by NMR representing a spatial distribution of the hyperpolarized gas microbubbles injected into the human or animal subject's vascular system. Preferably, the hyperpolarized gas is Helium-3 and/or Xenon-129. The microbubbles most preferably have a mean diameter of less than about 35 .mu.m.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: April 18, 2000
    Assignee: Duke University
    Inventors: G. Allan Johnson, Mark S. Chawla