Patents by Inventor Klaus Resag

Klaus Resag 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: 4075409
    Abstract: The present invention relates to pharmacologically valuable new benzophenone derivatives having a pronounced sedative action on the central nervous system and some of which also possess muscle-relaxing and aggression-inhibiting properties. These new derivatives have the structural formula ##STR1## and the pharmaceutically-acceptable acid-addition salts thereof in which R.sub.1 and R.sub.2 are substituents selected from the group consisting of hydrogen, saturated and unsaturated alkyl groups having 1-4 carbon atoms; R.sub.3 is selected from the group consisting of --COOC.sub.3 H.sub.7, --COOC.sub.4 H.sub.9, --COOC.sub.6 H.sub.5, --C.sub.6 H.sub.5, ##STR2## whereby R.sub.4 is an aliphatic radical with 1 to 4 carbon atoms or phenyl and Y is an oxygen or sulfur atom; if m is O R.sub.3 is further selected from the group consisting of --COOCH.sub.3 and --COOC.sub.2 H.sub.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: February 21, 1978
    Assignee: Cassella Farbwerke Mainkur Aktiengesellschaft
    Inventors: Heinz Gunter Greve, Klaus Resag
  • Patent number: 3959281
    Abstract: The present invention relates to new coumarin compounds useful as coronary dilators and having the formula ##SPC1##Or the hydrochloric acid addition salts thereof, and to methods of preparing same either by acylating, in the presence of acid-binding agents, if desired, coumarin derivatives having the formula ##SPC2##With acylating agents selected from the group consisting of alkoxybenzoic acid having the formula ##SPC3##And functional derivatives thereof, or by condensing, in the presence of acid-binding agents, if desired, coumarin derivatives having the formula ##SPC4##With an amine having the formula RH, wherein R is piperazino which is free of acyloxy groups and is bound via a nitrogen atom; R.sub.1 is selected from the group consisting of alkyl radicals having 1-4 carbon atoms and phenyl; R.sub.2 is selected from the group consisting of 5,7-, 6,7- and 7,8-positioned alkoxy groups having 1-4 carbon atoms; R.sub.3 is selected from alkoxy groups having 1-4 carbon atoms; R.sub.
    Type: Grant
    Filed: July 27, 1971
    Date of Patent: May 25, 1976
    Assignee: Cassella Farbwerke Mainkur Aktiengesellschaft
    Inventors: Rudi Beyerle, Adolf Stachel, deceased, Ingeburg Lydia Katharina Stachel, heiress, Rolf-Eberhard Nitz, Klaus Resag, Eckhard Schraven
  • Patent number: 3950383
    Abstract: The present invention relates to pharmacologically valuable new benzophenone derivatives having a pronounced sedative action on the central nervous system and some of which also possess muscle-relaxing and aggression-inhibiting properties. These new derivatives have the structural formula ##SPC1##And their addition salts, in whichR.sub.1 and R.sub.2 are substituents selected from the group consisting of hydrogen, alkyl having 1-5 carbon atoms, alkenyl having 2 to 4 carbon atoms, alkinyl having 2 to 4 carbon atoms or .beta.-bromoallyl (--CH.sub.2 --CBr = CH.sub.2) ; R.sub.3 is --CN; n is an integer selected from 1 and 2; and m is an integer selected from 1, 2 and 3, wherein the rings A and B may be substituted, ring A being substituted preferably with a halogen such as chlorine or with nitro, trifluoromethyl, methyl, methoxy or methylmercapto, preferably in the 5 position, and ring B being preferably substituted in the 2' position with chlorine or fluorine. The radical R.sub.
    Type: Grant
    Filed: November 5, 1974
    Date of Patent: April 13, 1976
    Assignee: Cassella Farbwerke Mainkur Akt
    Inventors: Heinz Gunter Greve, Klaus Resag
  • Patent number: 3931314
    Abstract: The present invention relates to pharmacologically valuable new benzophenone derivatives having a pronounced sedative action on the central nervous system and some of which also possess muscle-relaxing and aggression-inhibiting properties. These new derivatives have the structural formula ##EQU1## and their acid addition salts, in which R.sub.1 and R.sub.2 are substituents selected from the group consisting of hydrogen, saturated and unsaturated alkyl groups having 1-4 carbon atoms; R.sub.3 is a substituent selected from the group consisting of --CN, --CONH.sub.2, --COOCH.sub.3, --COOC.sub.2 H.sub.
    Type: Grant
    Filed: August 26, 1974
    Date of Patent: January 6, 1976
    Assignee: Cassella Farbwerke Mainkur Aktiengesellschaft
    Inventors: Heinz Gunter Greve, Klaus Resag
  • Patent number: 3931301
    Abstract: The present invention relates to pharmacologically valuable new benzophenone derivatives having a pronounced sedative action on the central nervous system and some of which also possess muscle-relaxing and aggression-inhibiting properties. These new derivatives have the structural formula ##SPC1##And their acid addition salts, in whichR.sub.1 and R.sub.2 are substituents selected from the group consisting of hydrogen, saturated and unsaturated alkyl groups having 1-4 carbon atoms;R.sub.3 is a substituent selected from the group consisting of --Cn, --CONH.sub.2, --COOCH.sub.3, --COOC.sub.2 H.sub.
    Type: Grant
    Filed: August 26, 1974
    Date of Patent: January 6, 1976
    Assignee: Cassella Farbwerke Mainkur Aktiengesellschaft
    Inventors: Heinz Gunter Greve, Klaus Resag