Patents by Inventor Gerd Kruger

Gerd Kruger 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: 4073942
    Abstract: Compounds of the formula ##STR1## wherein X is chlorine or bromine;R.sub.1 is hydrogen, chlorine or bromine;R.sub.2 is isopropyl; tert.butyl; tert.pentyl; mono-, di- or tri-hydroxy-substituted branched alkyl of 3 to 5 carbon atoms; cyclohexyl; or hydroxycyclohexyl; andR.sub.3 is alkyl of 1 to 4 carbon atoms or, when R.sub.2 is other than cyclohexyl, also hydrogen;And non-toxic, pharmacologically acceptable acid addition salts thereof; the compounds as well as their salts are useful as secretolytics, antitussives, anti-ulcerogenics and stimulants for the production of the surfactant or anti-atelectasis factor of the alveoli.
    Type: Grant
    Filed: November 25, 1975
    Date of Patent: February 14, 1978
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Johannes Keck, Sigfrid Puschmann, Gerd Kruger, Klaus-Reinhold Noll, Matyas Leitold, Helmut Pieper
  • Patent number: 4006246
    Abstract: Pharmaceutical dosage unit compositions containing as an active ingredient a compound of the formula ##STR1## wherein R.sub.1 is hydrogen, lower alkanoyl, benzoyl or halobenzoyl,R.sub.2 is hydrogen, chlorine or bromine,R.sub.3 is carboxyl or lower carbalkoxy, andR.sub.4 and R.sub.5 are each hydrogen, alkyl of 1 to 5 carbon atoms, mono- or di-hydroxy-(alkyl of 1 to 5 carbon atoms), alkenyl or 2 to 4 carbon atoms, cycloalkyl of 5 to 7 carbon atoms, mono- or di-hydroxy-(cycloalkyl of 5 to 7 carbon atoms) or benzyl,Or a non-toxic, pharmacologically acceptable acid addition salt thereof; and a method of using the same as anti-ulcerogenics, secretolytics, antitussives, and stimulants of the production of the surfactant or antiatelectasis factor of the alveoli.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: February 1, 1977
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Johannes Keck, Klaus-Reinhold Noll, Helmut Pieper, Gerd Kruger, Sigfrid Puschmann
  • Patent number: 3993778
    Abstract: Pharmaceutical compositions containing as an active ingredient an N-(hydroxy-cyclohexyl)-benzylamine of the formula ##SPC1##Wherein R.sub.1 is hydrogen or methyl, or a non-toxic, pharmacologically acceptable acid addition salt thereof; and a method of using the same as anti-ulcerogenics.
    Type: Grant
    Filed: March 25, 1975
    Date of Patent: November 23, 1976
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Johannes Keck, Matyas Leitold, Sigfrid Puschmann, Gerd Kruger
  • Patent number: 3956492
    Abstract: Pharmaceutical dosage unit compositions containing as an active ingredient a compound of the formula ##SPC1##WhereinR.sub.1 and R.sub.2, which may be identical to or different from each other, are each hydrogen, cycloalkyl, phenyl, --A--YwhereinA is alkyl of 1 to 5 carbon atoms or alkenyl of 1 to 5 carbon atoms, andY is furyl, dialkylamino, hydroxyl, carbalkoxy or carbamido,Or, together with each other and the nitrogen atom to which they are attached, pyrrolidino, piperidino, hexamethyleneimino, morpholino, thiomorpholino, thiomorpholino-S-oxide or N'-alkylpiperazino,R.sub.3 is halogen, nitro or trifluoromethyl,R.sub.4 is hydrogen, halogen or trifluoromethyl, andR.sub.5 is hydrogen, alkyl, cycloalkyl-methyl, alkylamino-alkyl, dialkylamino-alkyl or trifluoromethyl-alkyl;And a method of using the same as sedatives, tranquilizers, muscle-relaxants and anticonvulsives.
    Type: Grant
    Filed: December 12, 1974
    Date of Patent: May 11, 1976
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Helmut Pieper, Gerd Kruger, Johannes Keck, Klaus-Reinhold Noll, Joachim Kaehling
  • Patent number: 3950393
    Abstract: Compounds of the formula ##SPC1##WhereinR.sub.1 is hydrogen or aliphatic or aromatic carboxylic acyl,R.sub.2 is hydrogen, chlorine or bromine,R.sub.3 is fluorine, alkyl of 1 to 4 carbon atoms, trifluoromethyl, cyano, carbamoyl, carboxyl, carbalkoxy, alkoxy, acetyl, 1-hydroxyethyl or ##EQU1## where R.sub.6 and R.sub.7 are each alkyl, cycloalkyl, hydroxy-cycloalkyl or, together with each other and the nitrogen atom to which they are attached, pyrrolidino, piperidino or morpholino, andR.sub.4 and R.sub.
    Type: Grant
    Filed: April 5, 1974
    Date of Patent: April 13, 1976
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Johannes Keck, Klaus-Reinhold Noll, Helmut Pieper, Gerd Kruger, Sigfrid Puschmann