Patents by Inventor Juergen Markert

Juergen Markert 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).

  • Influencing the development of crops with 7-chloroquinoline-8-carboxylic acids
    Patent number: 4857103
    Abstract: The development of crops is influenced by means of one or more 7-chloroquinoline-8-carboxylic acids of the general formula ##STR1## where R is fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: August 15, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Henning Rosebrock, Johann Jung, Wilhelm Rademacher, Max Luib, Volker Fischer, Helmut Hagen, Rolf-Dieter Kohler, Juergen Markert, Akihide Watanabe
  • Quinoline-8-carboxylic acid azolides and their use as herbicides
    Patent number: 4832731
    Abstract: Quinoline-8-carboxylic acid azolides of the formula ##STR1## where A, X and R have the meanings given in the disclosure, and their use as herbicides.
    Type: Grant
    Filed: July 9, 1986
    Date of Patent: May 23, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Plath, Karl Eicken, Helmut Hagen, Rolf-Dieter Kohler, Juergen Markert, Norbert Meyer, Bruno Wuerzer
  • 3,7-dichloro-8-quinoline derivatives, and their use for controlling undersirable plant growth
    Patent number: 4717416
    Abstract: 3,7-Dichloroquinoline derivatives which are substituted in the 8-position by --CH.dbd.CHR or --CH.dbd.NR.sup.5, and their use for controlling undesirable plant growth.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: January 5, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Hagen, Rolf-Dieter Kohler, Juergen Markert, Bruno Wuerzer
  • Dichloroquinoline derivatives for use as herbicides
    Patent number: 4632696
    Abstract: Dichloroquinoline derivatives of the formula ##STR1## where R.sup.1, X and Y have the meanings given in the claims, are prepared as described, and are used as herbicides.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: December 30, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Hagen, Juergen Markert, Bruno Wuerzer
  • 3-Chloro-8-cyanoquinolines and their use for controlling undesirable plant growth
    Patent number: 4511393
    Abstract: 3-Chloro-8-cyanoquinolines of the formula ##STR1## where R.sup.1 is --NR.sup.2 R.sup.3, and R.sup.2 and R.sup.3 are identical or different and are each hydrogen, C.sub.1 -C.sub.8 -alkyl, formyl, cyclohexyl, or phenyl, or together are tetramethylene or pentamethylene, and one methylene group in these radicals can be replaced by oxygen, nitrogen or --N(CH.sub.3), are used for controlling undesirable plant growth.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: April 16, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Hagen, Juergen Markert, Rolf-Dieter Kohler, Bruno Wuerzer
  • Dichloroquinoline derivatives for use as herbicides
    Patent number: 4497651
    Abstract: Dichloroquinoline derivatives of the formula ##STR1## are prepared as described, and are used as herbicides.
    Type: Grant
    Filed: February 17, 1982
    Date of Patent: February 5, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Hagen, Juergen Markert, Bruno Wuerzer
  • Method of using 1,2-benzisothiazoles
    Patent number: 4277477
    Abstract: Novel 1,2-benzisothiazoles and a process for the manufacture of 1,2-benzisothiazoles by reacting o-haloaryl ketones with ammonia and elementary sulfur. The compounds are starting materials for the manufacture of dyes, crop protection agents and drugs.
    Type: Grant
    Filed: October 2, 1979
    Date of Patent: July 7, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Hagen, Rolf-Dieter Kohler, Juergen Markert