Patents by Inventor Klaus-Juergen Pees

Klaus-Juergen Pees 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).

  • 6-phenyl-pyrazolopyrimidines
    Publication number: 20020049318
    Abstract: 6-Phenyl-Pyrazolopyrimidines of formula I 1
    Type: Application
    Filed: December 12, 2000
    Publication date: April 25, 2002
    Applicant: BASF Corporation
    Inventors: Klaus Juergen Pees, Jordi Tormo i BLasco, Hubert Sauter, Oliver Cullman, Markus Gewehr, Wassilios Grammenos, Bernd Muller, Thomas Grote, Andreas Gypser, Joachim Rheinheimer, Peter Schafer, Frank Schieweck, Eberhard Ammermann, Siegried Strathmann, Gisela Lorenz, Reinhard Stierl
  • Fungicidal trifluorophenyl-triazolopyrimidines
    Patent number: 6297251
    Abstract: The novel compounds of formula I: (R1, R2 and Hal are defined in the specification) show selective fungicidal activity. The new compounds are processed with carriers and adjuvants to fungicidal compositions.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: October 2, 2001
    Assignee: American Cyanamid Co.
    Inventors: Klaus-Juergen Pees, Guido Albert
  • Fungicidal 7-oxy-and 7-thio-substituted-triazolopyrimidines
    Patent number: 6277857
    Abstract: The novel compounds of formula I: wherein (R1, R2, R3, A, X, L and n through L5 are defined in the specification) show high fungicidal activity. The new compounds are processed with carriers and adjuvants to fungicidal compositions.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: August 21, 2001
    Assignee: American Cyanamid Company
    Inventors: Waldemar Pfrengle, Klaus-Juergen Pees
  • Fungicidal trifluoromethylalkylamino-triazolopyrimidines
    Patent number: 6255309
    Abstract: The novel compounds of formula I: wherein (R1, R2, Hal and L1 through L5 are defined in the specification) show selective fungicidal activity. The new compounds may be processed with carriers and adjuvants to produce fungicidal compositions.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: July 3, 2001
    Assignee: American Cyanomid Co.
    Inventors: Klaus-Juergen Pees, Guenter Krummel, Henry Van Tuyl Cotter, Guido Albert, Annerose Rehnig, Leslie May, Waldemar Pfrengle
  • Fungicidal trihalophenyl-triazolopyrimidines
    Patent number: 6242451
    Abstract: The novel compounds of formula I: (R1 to R5 and X are defined in the specification) show selective fungicidal activity, in particular against rice blast disease. The new compounds are processed with carriers and, optionally, an adjuvant to provide fungicidal compositions.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: June 5, 2001
    Inventor: Klaus-Juergen Pees
  • Fungicidal trifluoromethylalkylamino-triazolopyrimidines
    Patent number: 6204269
    Abstract: The novel optically active compounds of formula I: (R1, Hal and L1 through L5 are defined in the specification) wherein the enantiomeric excess of the (S)-enantiomer is at least 70%., show enhanced selective fungicidal activity. The new compounds are processed with carriers, and optionally with adjuvants, to form fungicidal compositions.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: March 20, 2001
    Assignee: American Cyanamid Co.
    Inventors: Waldemar Pfrengle, Klaus-Juergen Pees, Guido Albert, Paul Carter, Annerose Rehnig, Henry Van Tuyl Cotter
  • Fungicidal trifluorophenyl-triazolopyrimidines
    Patent number: 6117865
    Abstract: The novel compounds of formula I: ##STR1## (R.sup.1, R.sup.2 and Hal are defined in the specification) show selective fungicidal activity. The new compounds are processed with carriers and adjuvants to form fungicidal compositions.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: September 12, 2000
    Assignee: American Cyanamid Company
    Inventor: Klaus-Juergen Pees
  • Fungicidal trifluorophenyl-triazolopyrimidines
    Patent number: 6117876
    Abstract: The novel compounds of formula I: ##STR1## (R.sup.1, R.sup.2 and Hal are defined in the specification) show selective fungicidal activity. The new compounds are processed with carriers and adjuvants to fungicidal compositions.
    Type: Grant
    Filed: April 8, 1998
    Date of Patent: September 12, 2000
    Assignee: American Cyanamid Company
    Inventors: Klaus-Juergen Pees, Guido Albert
  • Fungicidal 7-alkyl-triazolopyrimidines
    Patent number: 6020338
    Abstract: The novel compounds of formula I: whereinR.sup.1 represents an optionally substituted alkyl, alkenyl, alkynyl, alkadienyl, or aryl group, or an optionally substituted cycloalkyl or cycloalkenyl group, in which one CH.sub.2 group may also be replaced by O, S or NR.sup.2, in which R.sup.2 represents a hydrogen atom or an alkyl group;X represents a hydrogen or halogen atom, or an alkoxy, aryloxy, aralkyloxy, haloalkoxy, alkylthio, cyano, amino, alkylamino or dialkylamino group;L.sup.1, L.sup.2, L.sup.3, L.sup.4 and L.sup.5 each independently represent an hydrogen or halogen atom or an optionally substituted alkyl or alkoxy group or a nitro or cyano group show selective fungicidal activity. The new compounds are processed with carriers and, optionally, adjuvants, to afford fungicidal compositions, useful in agricultural applications.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: February 1, 2000
    Assignee: American Cyanamid Company
    Inventors: Waldemar Pfrengle, Klaus-Juergen Pees, Guido Albert
  • Fungicidal trifluoromethylalkylamino-triazolopyrimidines
    Patent number: 5986135
    Abstract: An improved process for the preparation of (S)-1,1,1-trifluoroalkyl-2-amines of formula IIIA, ##STR1## where R.sup.1 is a C.sub.1-6 alkyl group, from the corresponding racemic mixture, which process includes treating 1 part by mole of the racemic mixture with approximately 0.3 to 0.7 part by mole of D-(-)-tartaric acid in the presence of an inert solvent.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: November 16, 1999
    Assignee: American Cyanamid Company
    Inventors: Waldemar Pfrengle, Klaus-Juergen Pees, Guido Albert, Paul Carter, Annerose Rehnig, Henry Van Tuyl Cotter
  • Fungicidal trichlorophenyl-triazolopyrimidines
    Patent number: 5985883
    Abstract: The novel compounds of formula I: ##STR1## (R.sup.1, R.sup.2 and Hal are defined in the specification) show selective fungicidal activity, in particular against rice blast disease. The new compounds are processed with carriers, and optionally an adjuvant, to make fungicidal compositions.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: November 16, 1999
    Assignee: American Cyanamid Company
    Inventor: Klaus-Juergen Pees
  • Fungicidal trifluoromethylalkylamino-triazolopyrimidines
    Patent number: 5948783
    Abstract: The novel compounds of formula I: ##STR1## wherein R.sup.1, R.sup.2, Hal and L.sup.1 through L.sup.5, are defined in the specification show selective fungicidal activity.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: September 7, 1999
    Assignee: American Cyanamid Company
    Inventors: Klaus-Juergen Pees, Guenter Krummel, Henry Van Tuyl Cotter, Guido Albert, Annerose Rehnig, Leslie May, Waldemar Pfrengle