Patents by Inventor Norbert Schulmeyer

Norbert Schulmeyer 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: 4256752
    Abstract: There are prepared compounds corresponding to the formula ##STR1## in which X is a 5-membered or 6-membered aromatic heterocyclic radical which is attached through a carbon atom to the adjacent CH.sub.2 -group and which contains from 1 to 3 nitrogen atoms or one nitrogen atom and one oxygen or sulphur atom, and which may be substituted once or twice by substituents defined hereinbelow, each R.sup.1 represents hydrogen or a C.sub.1 -C.sub.4 -alkyl group, Alk represents a C.sub.2 -C.sub.6 -alkylene chain and Ac is defined hereinbelow and their salts.
    Type: Grant
    Filed: February 13, 1979
    Date of Patent: March 17, 1981
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Walter von Bebenburg, Norbert Schulmeyer, Istvan Szelenyi
  • Patent number: 4207322
    Abstract: There are produced 6-aryl-s-triazolo-(4,3-a)-pyrido-(2,3-f)-(1,4)-diazepines of the formula: ##STR1## wherein R.sub.1 is hydrogen, a halogen atom, an alkyl mercapto group having 1 to 6 carbon atoms,R.sub.2 is hydrogen, an alkyl group with 1 to 6 carbon atoms,R.sub.3 is hydrogen or a halogen or a halogen atomthe structural part A-B is the group --CH.sub.2 .dbd.NH--and Y-Z is the group >C.dbd.N--, >C.dbd.N(.fwdarw.O), and Y-Z is the group >C.dbd.N--, their optical isomers and their pharmaceutically acceptable salts. The compounds have anticonvulsive properties.
    Type: Grant
    Filed: July 20, 1978
    Date of Patent: June 10, 1980
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Walter von Bebenburg, Norbert Schulmeyer, Vladimir Jakovlev
  • Patent number: 4110455
    Abstract: There are produced 6-aryl-s-triazolo-(4,3-a)-pyrido-(2,3-f)-(1,4)-diazepines of the formula: ##STR1## wherein R.sub.1 is hydrogen, a halogen atom, an alkyl group with 1 to 6 carbon atoms, a hydroxy group, an alkoxy group with 1 to 6 carbon atoms, a mercapto group, an alkyl mercapto group having 1 to 6 carbon atoms, an alkylsulfoxido group with 1 to 6 carbon atoms, an alkyl sulfono group with 1 to 6 carbon atoms, an amino group, an aliphatic acylamino group with 2 to 6 carbon atoms, a monoalkylamino group with 1 to 6 carb0n atoms, a dialkylamino group with 1 to 6 carbon atoms in each alkyl group or a saturated heterocyclic amino group having 5 to 7 members in the ring including 1 to 2 nitrogen atoms and 0 to 1 oxygen atoms in the ring,R.sub.
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: August 29, 1978
    Assignee: Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
    Inventors: Walter von Bebenburg, Norbert Schulmeyer, Vladimir Jakovlev