Patents by Inventor Heinrich Bahrmann

Heinrich Bahrmann 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).

  • 5,6;8,9-Tetrahydro-7H-dibenz(d,f)azonines
    Patent number: 4415495
    Abstract: The present invention provides 5,6;8,9-tetrahydro-7H-dibenz(d,f)azonine derivatives of the formula: ##STR1## wherein R.sup.1 and R.sup.2, which are the same or different, are hydrogen or halogen atoms or lower alkyl or alkoxy radicals, R.sup.3 is a hydrogen atom or a lower alkyl radical, R.sup.4 is a hydrogen atom or a lower alkyl or alkanoyl radical and n is 1 or 2; and the pharmaceutically acceptable salts thereof formed with inorganic and organic acids; but excluding 6-benzyl-2,12-dimethoxy-1-hydroxy-7-methyl-5,6;8,9-tetrahydro-7H-dibenz(d, f)azonine in which case R.sup.1, R.sup.2 and R.sup.4 are hydrogen, n is 1 and R.sup.3 is methyl. The lower alkyl, alkanoyl and alkoxy radicals are straight chained or branched radicals containing 1 to 5 carbon atoms.The present invention also provides a process for the preparation of these compounds, as well as pharmaceutical compositions containing them.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: November 15, 1983
    Assignee: Godecke Aktiengesellschaft
    Inventors: Gerhard Satzinger, Manfred Herrmann, Edgar Fritschi, Heinrich Bahrmann, Volker Ganser, Bernd Wagner, Wolfgang Steinbrecher
  • Azocine analgesics and method for their preparation
    Patent number: 4294834
    Abstract: Novel azocine derivatives and a method for their preparation are disclosed. The compounds display analgesic effects in mammals.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: October 13, 1981
    Assignee: Godecke Aktiengesellschaft
    Inventors: Johannes Hartenstein, Gerhard Satzinger, Heinrich Bahrmann, Volker Ganser
  • (+)-(3-Methyl-4-oxo-5N-piperidinothiazolidin-2-ylidene)acetic acid esters, method of preparation and use
    Patent number: 4255433
    Abstract: The invention discloses (+)-(3-methyl-4-oxo-5N-piperidinothiazolidin-2-ylidene)acetic acid esters and a process for their preparation. The process provides the dextrorotatory isomers substantially free from the corresponding levorotatory isomers. Antihypertensive pharmaceutical compositions comprising the dextrorotatory esters and methods for using said compositions are also disclosed.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: March 10, 1981
    Assignee: Godecke Aktiengesellschaft
    Inventors: Wolfgang Herrmann, Gerhard Satzinger, Manfred Herrmann, Wolfgang Steinbrecher, Heinrich Bahrmann
  • Phenoxyalkylaminepyridylethers
    Patent number: 4152438
    Abstract: Phenoxyalkylaminepyridyl ethers of the formula ##STR1## wherein R.sub.1 is methyl, methoxy, or chlorine; R.sub.2 is hydrogen, methyl, alkoxy containing 1 to 4 carbon atoms, nitro, amino, halogen, cyano, or a residue of the formula ##STR2## N IS 2 OR 3, AND THEIR PHYSIOLOGICALLY ACCEPTABLE ACID ADDITION SALTS. These compounds are useful for lowering blood pressure.
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: May 1, 1979
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Wolfgang Fleck, Rudolf Petersen, Heinrich Bahrmann