Patents by Inventor Jan Krummenacker

Jan Krummenacker 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).

  • Hyperpolarization apparatus and method for administration of a hyperpolarized liquid contrast agent
    Patent number: 9554726
    Abstract: A hyperpolarized liquid contrast agent is for use in a MRT device. The liquid contrast agent passes through a conduit of a MW resonator in the magnetic field of the MRT device. A microwave with a frequency of at least 40 GHz couples into the MW resonator for polarizing the liquid contrast agent upon passage through the conduit in the MW resonator using DNP. The contrast agent is polarized in a continuous passage in the MW resonator and administered immediately. A MW mode is formed in the MW resonator which has an antinode in the magnetic field strength and a node in the electric field strength. The power of the introduced microwave and coupling of the microwave into the resonator are adjusted such that in the area of the line, an amplitude of the MW magnetic field strength B 1 ? 1.5 · 10 - 2 ? Ts ? 1 T 1 , e results, wherein T1,e is the relaxation time of the DNP-active electrons.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: January 31, 2017
    Assignee: Johann Wolfgang Goethe-Universität Frankfurt am Main
    Inventors: Jan Krummenacker, Thomas Prisner, Vasyl Denysenkov, Laura Schreiber, Kerstin Münnemann