Patents by Inventor Guenter Retzlaff

Guenter Retzlaff 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: 6262091
    Abstract: Compositions for controlling harmful fungi, containing in a solid or liquid carrier a) at least one p-hydroxyaniline derivative of the formula I b) at least one amide compound of the formula II A—CO—NR8—R9  (II) where the substituents have the meanings indicated in the description; and methods of controlling harmful fungi using compositions of this type are described.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: July 17, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Oliver Wagner, Karl Eicken, Eberhard Ammermann, Gisela Lorenz, Siegfried Strathmann, Harald Köhle, Günter Retzlaff
  • Patent number: 4923503
    Abstract: Agents for influencing plant growth, containing as active ingredient an azolylacetophenone oxime ether of the formula ##STR1## where R and R.sup.1 independently of one another are each hydrogen, halogen, alkyl, cycloakyl, alkoxy, alkylthio, alkylsulfonyl, haloalkyl, nitro, cyano, phenyl or phenoxy, R.sup.2 is hydrogen, alkyl, aralkyl, allyl or propargyl, R.sup.3 is a divalent radical of the formula --(CH.sub.2).sub.m --, --(CH.sub.2 CH.sub.2 O--).sub.u CH.sub.2 CH.sub.2 --, --(CH.sub.2).sub.v CH.dbd.CH--(CH.sub.2).sub.t -- or --(CH.sub.2).sub.v --C.tbd.C--(CH.sub.2).sub.t --, n, p, u, v and t independently of one another are each 1, 2 or 3, m is an integer from 2 to 10, and Az is 1,2,4-triazol-1-yl, pyrazol-1-yl or imidazol-1-yl, or a salt or metal complex thereof, and a method of influencing plant growth or of destroying unwanted plants with these active ingredients.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: May 8, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Schulz, Ernst Buschmann, Hubert Sauter, Bernd Zeeh, Bruno Wuerzer, Johann Jung, Guenter Retzlaff
  • Patent number: 4566900
    Abstract: Aniline derivatives of the formula ##STR1## where R.sup.1, Y, A, Z and n have the meanings given in the description, are used for controlling undesirable plant growth.
    Type: Grant
    Filed: December 1, 1982
    Date of Patent: January 28, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Plath, Ulrich Schirmer, Gernot Reissenweber, Bruno Wuerzer, Guenter Retzlaff
  • Patent number: 4459238
    Abstract: N-Arylthiolcarbamates for the formula ##STR1## where R denotes methyl or ethyl, X denotes halogen, Y denotes alkyl, haloalkyl of at least 2 carbon atoms, alkoxyalkyl, cycloalkyl, alkoxy or halomethoxy, and n denotes one of the integers 1 and 2, herbicides containing these compounds, and their use as herbicides.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: July 10, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Schirmer, Karl-Heinz Koenig, Bruno Wuerzer, Guenter Retzlaff
  • Patent number: 4396418
    Abstract: N-aryl(thiol)carbamates of the formula ##STR1## where X denotes hydrogen, fluorine, bromine, iodine, alkyl, alkoxy, haloalkyl, haloalkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, phenyl or benzyloxy, Y denotes hydrogen, halogen, alkyl, alkoxy, haloalkyl, haloalkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, phenyl or benzyloxy, n denotes one of the integers 1 and 2, Z denotes hydrogen, halogen or trifluoromethyl, A denotes oxygen, sulfur, sulfinyl or sulfonyl, and Q denotes oxygen or sulfur, and their use for combating unwanted plant growth.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: August 2, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Schirmer, Rainer Becker, Bruno Wuerzer, Guenter Retzlaff
  • Patent number: 4158559
    Abstract: New and valuable substituted 2,1,3-benzothiadiazine compounds having a good herbicidal action, herbicides containing these active ingredients, methods of controlling the growth of unwanted plants with these compounds, and processes for manufacturing them.
    Type: Grant
    Filed: November 15, 1977
    Date of Patent: June 19, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Stubenrauch, Gerhard Hamprecht, Bruno Wuerzer, Guenter Retzlaff
  • Patent number: 4075004
    Abstract: New and valuable substituted 2,1,3-benzothiadiazine compounds having a herbicidal action, herbicides containing these compounds, a method of controlling the growth of unwanted plants with these compounds, and methods for their manufacture.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: February 21, 1978
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Ulrich Schirmer, Bruno Wuerzer, Guenter Retzlaff