Patents by Inventor Heinrich Michel

Heinrich Michel 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).

  • Oxidation inhibitors in prostane derivatives
    Patent number: 6512139
    Abstract: The invention relates to the use of an oxidation inhibitor, i.e. active carbon, for ambient air in industrial manufacturing, especially in the processing of prostane derivatives, whereby the oxidation inhibitor removes ozone from the process air before contact with said prostane derivatives. The concentration of decomposition products is reduced.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: January 28, 2003
    Assignee: Schering Aktiengesellschaft
    Inventors: Torsten Wagner, Martin Wessel, Ralph Lipp, Bernd Iffert, Heinrich Michel, Jürgen Westermann, Helmut Dahl, Werner Skuballa
  • Enteral contrast medium useful for nuclear magnetic resonance imaging and its preparation
    Patent number: 4719098
    Abstract: An enteral contrast medium useful for proton nuclear spin tomography contains at least one physiologically compatible paramagnetic compound in combination with a physiologically compatible, osmotically active substance, as well as a physiologically compatible base/buffer or buffer mixture with a pH value of 3 to 8, and, optionally, also a viscosity-raising material, all dissolved or suspended in water. It is excellently suitable for enhancing contrast in imaging, e.g., of the gastrointestinal tract by nuclear spin tomography.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: January 12, 1988
    Assignee: Schering Aktiengesellschaft
    Inventors: Hanns-Joachim Weinmann, Heinz Gries, Heinrich Michel