Patents by Inventor Klaus Ditrich

Klaus Ditrich 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: 5378680
    Abstract: Dicarboximides of the formulae Ia, Ib and Ic ##STR1## where X is oxygen or sulfur,R.sup.1 is hydrogen, halogen, cyano, alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, haloalkoxy, haloalkylthio, alkylsulfonyl, haloalkylsulfonyl, phenyl, phenylalkyl, phenoxy or phenylthio, a 5-membered or 6-membered saturated or aromatic heterocyclic radical containing one or two hetero atoms selected from the group consisting of oxygen, sulfur and nitrogen, where the stated organic radicals may be further substituted, andR.sup.2 is hydrogen, hydroxyl, alkoxy, alkyl, cycloalkyl, alkenyl, alkynyl, di-C.sub.1 -C.sub.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: January 3, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Maywald, Klaus Ditrich, Thomas Kuekenhoehner, Gerhard Hamprecht, Wolfgang Freund, Karl-Otto Westphalen, Matthias Gerber, Helmut Walter
  • Patent number: 5284821
    Abstract: Oxazole- and thiazolecarboxamides of the formulae Ia and Ib ##STR1## where the substituents have the following meanings: X oxygen or sulfur;R.sup.1 hydrogen; halogen; substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, benzyl, cycloalkyl, alkenyl, alkynyl, phenyl, phenoxy or phenylthio; alkoxy; alkylthio; haloalkoxy; haloalkylthio; or a substituted or unsubstituted 5- or 6-membered heterocyclic radical;R.sup.2 formyl, 4,5-dihydrooxazol-2-yl or --COYR.sup.5 ;Y oxygen or sulfur;R.sup.5 hydrogen; cycloalkyl; substituted or unsubstituted alkyl, phenyl, benzyl, alkenyl, cycloalkenyl or alkynyl; a substituted or unsubstituted 5- or 6-membered heterocyclic radical; phthalimido; tetrahydrophthalimido; succinimido; maleiimido; one equivalent of a cation; or--N.dbd.CR.sup.6 R.sup.7 ;R.sup.6, R.sup.7 hydrogen; alkyl; cycloalkyl; phenyl; furyl or together a methylene chain of 4 to 7 members;R.sup.3 hydrogen or substituted or unsubstituted alkyl or cycloalkyl;R.sup.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: February 8, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Volker Maywald, Gerhard Hamprecht, Albrecht Harreus, Bruno Wuerzer, Karl-Otto Westphalen
  • Patent number: 5280009
    Abstract: Pyrimidine derivatives of the Formula Ia or Ib ##STR1## where the substituents have the following meanings: R.sup.1 is hydrogen or alkyl;A is a substituted or unsubstituted bi- or tricyclic carbo- or heterocyclic radical which may contain one or several double bonds;R.sup.5 is H or alkyl;X is halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio or haloalkylthio; and addition salts thereof with organic or inorganic acids and the use of said pyrimidine derivative to control undesirable plant growth.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: January 18, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Klaus Ditrich, Karl-Otto Westphalen, Matthias Gerber, Helmut Walter
  • Patent number: 5256633
    Abstract: Oxazole- and thiazolecarboxamides of the formulae Ia and Ib ##STR1## where the substituents have the following meanings: oxygen or sulfur;hydrogen; halogen; substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, benzyl, cycloalkyl, alkenyl, alkynyl, phenyl, phenoxy or phenylthio; alkoxy; alkylthio; haloalkoxy; haloalkylthio; or a substituted or unsubstituted 5- or 6-membered heterocyclic radical;formyl, 4,5-dihydrooxazol-2-yl or --COYR.sup.5 ;oxygen or sulfur;hydrogen; cycloalkyl; substituted or unsubstituted alkyl, phenyl, benzyl, alkenyl, cycloalkenyl or alkynyl; a substituted or unsubstituted 5- or 6-membered heterocyclic radical; phthalimido; tetrahydrophthalimido; succinimido; maleiimido; one equivalent of a cation; or--N.dbd.CR.sup.6 R.sup.7 ;R.sup.6, R.sup.7 hydrogen; alkyl; cycloalkyl; phenyl; furyl or together a methylene chain or 4 to 7 members;hydrogen or substituted or unsubstituted alkyl or cycloalkyl;R.sup.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: October 26, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Volker Maywald, Gerhard Hamprecht, Albrecht Harreus, Bruno Wuerzer, Karl-Otto Westphalen
  • Patent number: 5252540
    Abstract: Sulfonamides of the formula I ##STR1## where A is an unsubstituted or substituted aromatic or heteroaromatic radical; W is oxygen or sulfur; B is an unsubstituted or substituted furyl, thienyl, pyrrolyl, oxazolyl, isothiazolyl, imidazolyl, pyrazolyl, thiadiazolyl, oxadiazolyl or triazolyl radical, and the environmentally compatible salts thereof are prepared as described and are used as herbicides.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: October 12, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Elisabeth Heistracher, Klaus Fischer, Horst Mayer, Thomas Saupe, Gerhard Hamprecht, Klaus Ditrich, Thomas Kuekenhoehner, Matthias Gerber, Helmut Walter, Karl-Otto Westphalen
  • Patent number: 5244867
    Abstract: Oxazole- and thiazolecarboxamides of the formulae Ia and Ib ##STR1## where the substituents have the following meanings: X oxygen or sulfur;R.sup.2 formyl, 4,5-dihydrooxazol-2-yl or --COYR.sup.5 ;Y oxygen or sulfur; andR.sup.4 is methyl and herbicidal agents containing compounds of the formulae Ia or Ib as active ingredients.
    Type: Grant
    Filed: December 26, 1991
    Date of Patent: September 14, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Volker Maywald, Gerhard Hamprecht, Albrecht Harreus, Bruno Wuerzer, Karl-Otto Westphalen
  • Patent number: 5217523
    Abstract: Pyrazole-3-carboxamides of the general formula I ##STR1## where the substituents have the following meaning: R.sup.1 hydrogen;substituted or unsubstituted C.sub.3 -C.sub.8 -cycloalkyl or C.sub.1 C.sub.6 -alkyl;R.sup.2 hydroxy; amino; C.sub.1 -C.sub.4 -alkylamino; di-C.sub.1 -C.sub.4 -alkylamino, aminocarbonyl-C.sub.1 -C.sub.6 -alkyl; substituted or unsubstituted C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl, phenyl or naphthyl,a substituted or unsubstituted 5- to 6-membered heterocyclic ring;one of the groups mentioned for R.sup.1 orR.sup.1 and R.sup.2 together denote a 4- to 7-membered chain which may contain, in addition to methylene groups one of the following groups as ring member: oxygen, sulfur N-methyl or carbonyl;R.sup.3 a substituted or unsubstituted 5- to 6-membered heterocyclic ring.substituted or unsubstituted C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 alkynyl, 5,6,7,8-tetrahydronaphthyl or phenyl orone of the groups mentioned for R.sup.1 ;R.sup.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: June 8, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Gerhard Hamprecht, Peter Plath, Bruno Wuerzer, Karl-Otto Westphalen
  • Patent number: 5176739
    Abstract: Dicarboximides of the formulae Ia, Ib and Ic ##STR1## where X is oxygen or sulfur, R.sup.1 is hydrogen, halogen, cyano, alkyl, cycloalkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, haloalkoxy, haloalkylthio, alkylsulfonyl, haloalkylsulfonyl, phenyl, phenylalkyl, phenoxy or phenylthio, a 5-membered or 6-membered saturated or aromatic heterocyclic radical containing one or two hetero atoms selected from the group consisting of oxygen, sulfur and nitrogen, where the stated organic radicals may be further substituted, andR.sup.2 is hydrogen, hydroxyl, alkoxy, alkyl, cycloalkyl, alkenyl, alkynyl, di-C.sub.1 -C.sub.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: January 5, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Volker Maywald, Klaus Ditrich, Thomas Kuekenhoehner, Gerhard Hamprecht, Wolfgang Freund, Karl-Otto Westphalen, Matthias Gerber, Helmut Walter
  • Patent number: 5171353
    Abstract: Sulfonamides of the general formula I ##STR1## where R.sup.1 is hydrogen of C.sub.1 -C.sub.4 -alkyl,R.sup.2 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl; C.sub.3 -C.sub.4 -alkenyl; C.sub.3 -C.sub.4 -alkynyl or substituted or unsubstituted saturated or singly unsaturated 5- to 7- membered heteroaryl;R.sup.3 and R.sup.4 are halogen; substituted or unsubstituted C.sub.1 -C.sub.4 -alkoxy C.sub.1 -C.sub.4 -alkylthio, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkenyloxy, C.sub.2 -C.sub.6 -alkenylthio, C.sub.2 -C.sub.6 -alkynyl, C.sub.2 -C.sub.6 -alkynyloxy, C.sub.2 -C.sub.6 -alkynylthio, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.3 -C.sub.6 -cycloalkylthio, C.sub.5 -C.sub.6 -cycloalkenyl, C.sub.3 -C.sub.6 -cycloalkoxy, C.sub.5 -C.sub.6 -cycloalkenyloxy, C.sub.5 -C.sub.6 -cycloalkenylthio, phenyl, phenoxy, phenylthio, benzyl, benzyloxy or benzylthio;the group given for R.sup.2, or NR.sup.7 R.sup.8, where R.sup.7 and R.sup.8 are hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: December 15, 1992
    Assignee: BASF Akteingesellschaft
    Inventors: Klaus Fischer, Horst Mayer, Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Karl-Otto Westphalen
  • Patent number: 5117005
    Abstract: Naphthindazole-4,9-quinones of the formula ##STR1## where R.sup.1 to R.sup.5 have the meanings given in the disclosure, and their use for combating unwanted plant growth.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: May 26, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen, Hartmut Laatsch
  • Patent number: 5074904
    Abstract: Naphthindazole-4,9-quinones of the formula ##STR1## where R.sup.1 to R.sup.5 have the meanings given in the disclosure, and their use for combating unwanted plant growth.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: December 24, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen, Hartmut Laatsch
  • Patent number: 5007954
    Abstract: Naphthindazole-4,9-quinones of the formula ##STR1## where R.sup.1 to R.sup.5 have the meanings given in the disclosure, and their use for combating unwanted plant growth.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: April 16, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen, Hartmut Laatsch
  • Patent number: 4983587
    Abstract: Substituted benzofuran derivatives of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are hydrogen, an alkali or alkaline earth metal, alkyl, aralkyl, alkanoyl, halogen-substituted alkanoyl, benzoyl or a radical R.sup.4 R.sup.5 R.sup.6 Si in which R.sup.4, R.sup.5 and R.sup.6 are alkyl, and fungicides containing these compounds.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: January 8, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: John-Bryan Speakman, Rudolf Karl, Gisela Lorenz, Eberhard Ammermann, Bruno Wuerzer, Norbert Meyer, Klaus Ditrich