Patents by Inventor Heinrich Kief

Heinrich Kief 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).

  • Ferrocene derivatives
    Patent number: 4141991
    Abstract: Compounds of the formula I ##STR1## in which R represents a cycloalkenyl radical having 5 to 7 carbon atoms, in which the ethylenic double bond is not in an adjacent position to the CO-group, or a cycloalkenyl radical having 5 to 7 carbon atoms, in which the ethylenic double bond is not in an adjacent position to the CO-group, and substituted one or more times by alkyl having 1 to 4 carbon atoms, phenyl, benzyl or chlorine, process for their manufacture, medicaments containing them and their use for the treatment of sideropenia symptoms and sideropenic anaemiae.
    Type: Grant
    Filed: May 24, 1977
    Date of Patent: February 27, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudolf Lattrell, Heinrich Kief, Hermann Bahr
  • 3,5,5-Trimethylhexanoyl ferrocene
    Patent number: 4118509
    Abstract: 3,5,5-Trimethylhexanoyl ferrocene of the formula ##STR1## a process for its manufacture, medicaments containing this compound and the use thereof for the treatment of sideropeniasymptoms and sideropenic anaemiae.
    Type: Grant
    Filed: May 24, 1977
    Date of Patent: October 3, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudolf Lattrell, Heinrich Kief, Hermann Bahr