Patents by Inventor Eberhard Schickel

Eberhard Schickel 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).

  • Patent number: 4318898
    Abstract: What are disclosed are a diagnostic agent for visualizing the hepatobiliary system which agent contains Technetium-99m-labelled (2,4,5-trimethylacetanilido)-iminodiacetate in a suitable solvent, and a process for the preparation of this diagnostic agent; chloroacetic acid-(2,4,5-trimethylanilide) as an intermediate product and a process for the preparation thereof; and (2,4,5-trimethylacetanilido)-iminodiacetate and a process for the preparation thereof.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: March 9, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Michael Molter, Gerhard Kloss, Eberhard Schickel
  • Patent number: 4291012
    Abstract: A process is disclosed for the preparation of a diagnositc agent for scanning the RES, in particular the liver, by mixing the sodium salt of 1-phenyl-2,3-dimethyl-pyrazolone-4-methylamino-methylsulfonic acid or 1-phenyl-2,3-dimethyl-pyrazolone in aqueous solution with tin(II) salt, adjusting the solution to a pH between 4 and 9, optionally lyophilizing the mixture and adding .sup.99m Tc-pertechnetate in physiological saline solution.
    Type: Grant
    Filed: January 4, 1979
    Date of Patent: September 22, 1981
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Helmut Strecker, Michael Molter, Gerhard Kloss, Eberhard Schickel