Patents by Inventor Helmut Siegfried Baltruschat

Helmut Siegfried Baltruschat 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).

  • Herbicidal 6-thienyl pyridines and 4-thienyl pyrimidines
    Patent number: 5922726
    Abstract: The novel 6-thienyl pyridines and 4-thienyl pyrimidines of formula I: ##STR1## (A, R.sub.1 to R.sub.5 and Z are defined in the specification) show selective herbicidal activity.The new compounds can be prepared according to known methods and can be used as herbicides in agriculture and related fields.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: July 13, 1999
    Assignee: American Cyanamid Company
    Inventors: Stefan Scheiblich, Thomas Maier, Helmut Siegfried Baltruschat, Joseph Luke Pont
  • Herbicidal 2, 6-disubstituted pyridines and 2, 4-disubstituted pyrimidines
    Patent number: 5849758
    Abstract: New herbicidal pyrimidine derivatives of general formula (I), ##STR1## wherein Z represents a nitrogen atom; A represents a substituted aryl group or an optionally substituted pyridyl or pyrazolyl group; n represents an integer from 0 to 2 and R.sup.1 or each R.sup.1 independently represents a hydrogen atom or an optionally substituted alkyl, alkoxy, alkylthio or dialkylamino group; m represents an integer from 0 to 5 and R.sup.2 or each R.sup.2 independently represents a hydrogen or a halogen atom or an optionally substituted alkyl, haloalkyl, haloalkoxy, alkoxy, alkylthio group or a nitro, cyano or a halosulphonyl group; and X represents an oxygen or sulphur atom.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: December 15, 1998
    Assignee: American Cyanamid Company
    Inventors: Axel Kleemann, Helmut Siegfried Baltruschat, Thekla Hulsen, Thomas Maier, Stefan Scheiblich
  • Herbicidal 2-(hectero)aryloxy-6-arypyridines and 2-aryl-4-(hetero)aryloxypyrimidines
    Patent number: 5824624
    Abstract: New herbicidal pyridine and pyrimidine derivatives of general formula (I), ##STR1## wherein Z represents a nitrogen atom or a C--H group; A represents an optionally substituted aryl group or an optionally substituted 5- or 6-membered nitrogen-containing heteroaromatic group; n represents an integer from 0 to 2 and R.sup.1 or each R.sup.1 independently represents a hydrogen atom or an optionally substituted alkyl, alkoxy, alkylthio or dialkylamino group; m represents an integer from 0 to 5 and R.sup.2 or each R.sup.2 independently represents a hydrogen or a halogen atom or an optionally substituted alkyl, haloalkyl, haloalkoxy, alkoxy, alkylthio group or a nitro, cyano or a halosulphonyl group; and X represents an oxygen or sulphur atom.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: October 20, 1998
    Assignee: American Cyanamid Company
    Inventors: Axel Kleeman, Helmut Siegfried Baltruschat, Thelka Hulsen
  • Substituted pyridine herbicidal agents
    Patent number: 5807804
    Abstract: There are provided substituted pyridine compounds having the structural formula I ##STR1## Further provided are compositions and methods comprising those compounds for the control of undesirable plant species.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: September 15, 1998
    Assignee: American Cyanamid Company
    Inventors: Axel Kleemann, Helmut Siegfried Baltruschat
  • Herbicidal 6-thienyl and 4-thienyl pyrimidines
    Patent number: 5747423
    Abstract: The novel 6-thienyl pyridines and 4-thienyl pyrimidines of formula I: ##STR1## (A, R.sub.1 to R.sub.5 and Z are defined in the specification) show selective herbicidal activity.The new compounds can be prepared according to known methods and can be used as herbicides in agriculture and related fields.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: May 5, 1998
    Assignee: American Cyanamid Company
    Inventors: Stefan Scheiblich, Thomas Maier, Helmut Siegfried Baltruschat, Joseph Luke Pont
  • Substituted pyridine herbicidal agents
    Patent number: 5710106
    Abstract: There are provided substituted pyridine compounds having the structural formula I ##STR1## Further provided are compositions and methods comprising those compounds for the control of undesirable plant species.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: January 20, 1998
    Assignee: American Cyanamid Company
    Inventors: Axel Kleemann, Helmut Siegfried Baltruschat