Patents by Inventor Volkard Austel

Volkard Austel 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).

  • 1,3-Dioxo-2-[(methoxyphenethyl-amino)-alkyl]-4,4-dimethyl-isoquinolines and salts thereof useful as hypotensive agents
    Patent number: 4021558
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is hydrogen, halogen, methoxy or methylthio, R.sub.2 is hydrogen or methoxy,n is 2 or 3,R.sub.3 is hydrogen or methyl, andR.sub.4 and R.sub.5, which may be identical to or different from each other, are each hydrogen or methoxy, and non-toxic, pharmacologically acceptable acid addition salts thereof; the compounds as well as the salts are useful as hypotensives, sedatives, antiarrhythmics and bradycardiacs.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: May 3, 1977
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Eberhard Kutter, Volkard Austel, Wolfgang Eberlein, Joachim Heider
  • 1,3-Dioxo-2-aminoalkyl-4,4-dimethyl-isoquinolines and salts thereof
    Patent number: 3948898
    Abstract: Compounds of the formula ##SPC1##Wherein R.sub.1 is hydrogen, halogen, methoxy or methylthioR.sub.2 is hydrogen or methoxy,n is 2 or 3, andA is ##SPC2##Or ##SPC3##Where R.sub.3 is hydrogen or methyl,R.sub.4 is pyridyl, methy-pyridyl, phenyl, chlorophenyl, trifluoromethyl-phenyl, tolyl, xylyl, ethyl-phenyl, diethyl-phenyl, methoxy-phenyl or dimethoxy-phenyl, andR.sub.5 and R.sub.6, which may be identical to or different from each other, are each hydrogen or methoxy,And non-toxic, pharmacologically acceptable acid addition salts thereof; the compounds as well as the salts are useful as hypotensives, sedatives, antiarrhythmics and bradycardiacs.
    Type: Grant
    Filed: September 4, 1974
    Date of Patent: April 6, 1976
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Eberhard Kutter, Volkard Austel, Wolfgang Eberlein, Joachim Heider