Patents by Inventor Waldemar Pfrengle

Waldemar Pfrengle 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).

  • Publication number: 20030055069
    Abstract: The novel compounds of formula I: 1
    Type: Application
    Filed: April 23, 2001
    Publication date: March 20, 2003
    Applicant: BASF Aktiengesellschaft
    Inventors: Klaus-Juergen Pees, Guenter Krummel, Henry Van Tuyl Cotter, Guido Albert, Annerose Rehnig, Leslie May, Waldemar Pfrengle
  • Publication number: 20020068744
    Abstract: The invention provides a method of treating or inhibiting the growth of cancerous tumour cells and associated diseases in a mammal in need thereof which comprises administering to said mammal an effective amount of a substituted triazolopyrimidine derivative or a pharmaceutically acceptable salt thereof and further provides a method of treating or inhibiting the growth of cancerous tumour cells and associated diseases in a mammal in need thereof by interacting with tubulin and microtubules and promoting microtubule polymerization which comprises administering to said mammal an effective amount of a substituted triazolopyrimidine derivative or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: June 29, 2001
    Publication date: June 6, 2002
    Applicant: American Home Products Corporation
    Inventors: Mark R. Schmitt, Donald R. Kirsch, Jane E. Harris, Carl F. Beyer, Klaus-Juergen Pees, Paul A. Carter, Waldemar Pfrengle, Guido Albert
  • Patent number: 6284762
    Abstract: The novel compounds of formula I: (R1, R2, R3, L1, L2 and Hal are defined in the specification) show selective fungicidal activity. These compounds may be processed with carriers, and optionally an adjuvant, to produce fungicidal compositions.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: September 4, 2001
    Assignee: American Cyanamid Company
    Inventor: Waldemar Pfrengle
  • 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
  • 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
  • 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
  • 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
  • Patent number: 5994360
    Abstract: The novel compounds of formula I: ##STR1## (A, L, n and R.sup.1 through R.sup.4 are defined in the specification) show selective fungicidal activity. The new compounds can be combined with carriers and adjuvants to form fungicidal compositions.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: November 30, 1999
    Assignee: American Cyanamid Company
    Inventor: Waldemar Pfrengle
  • 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
  • Patent number: 5981534
    Abstract: The novel compounds of formula I: ##STR1## (R.sup.1, R.sup.2, R.sup.3, L.sup.1, L.sup.2 and Hal are defined in the specification) show selective fungicidal activity. These compounds may be processed with carriers, and optionally an adjuvant, to produce fungicidal compositions.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: November 9, 1999
    Assignee: American Cyanamid Company
    Inventor: Waldemar Pfrengle
  • 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