Patents by Inventor Jochen Würtz

Jochen Würtz 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: 7776792
    Abstract: The invention relates to liquid formulations (preparations) that contain a) one or more alkyl esters of polycarboxylic acids, and b) one or more agrochemical substances from the group of ALS inhibitors.
    Type: Grant
    Filed: January 19, 2002
    Date of Patent: August 17, 2010
    Assignee: Bayer CropScience AG
    Inventors: Thomas Maier, Gerhard Schnabel, Detlev Haase, Jochen Würtz
  • Patent number: 7615232
    Abstract: The present invention relates to surfactant/solvent systems for liquid formulations comprising ?) one or more nonaromatic-based surfactants, ?) as solvent, one or more triester(s) of phosphoric acid with alcohols, preferably from the group consisting of 1) monohydric alkanols having 5 to 22 carbon atoms, for example with n-, i- or neo-pentanol, n-hexanol, n-octanol, 2-ethylhexanol, 2) diols or polyols, such as ethylene glycol, propylene glycol or glycerol, 3) aryl, alkylaryl, poly(alkyl)aryl and poly(arylalkyl)aryl alcohols, for example with phenol and/or cresol, octylphenol, nonylphenol, triisobutylphenol, tristyrylphenol, 4) alkoxylated alcohols obtained by reacting the alcohols mentioned above under 1), 2) or 3) with alkylene oxides, preferably (C1-C4)alkylene oxides, and 5) alkoxylated alcohols obtained by reacting monohydric alkanols having 1 to 4 carbon atoms and alkylene oxides.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: November 10, 2009
    Assignee: Bayer CropScience AG
    Inventors: Jochen Würtz, Gerhard Schnabel, Gerhard Frisch
  • Patent number: 7163910
    Abstract: The present invention relates to formulations comprising a) at least one phosphonium or sulfonium salt of a sulfonylurea, where the phosphonium and sulfonium cation of the salt has at least one substituent which is different from hydrogen, and b) customary auxiliaries and additives.
    Type: Grant
    Filed: January 22, 2000
    Date of Patent: January 16, 2007
    Assignee: Bayer CropScience GmbH
    Inventors: Gerhard Schnabel, Detlev Haase, Thomas Maier, Julio Martinez de Una, Jochen Würtz
  • Patent number: 6743754
    Abstract: The present invention relates to a herbicidal composition comprising A) one or more sulfonylureas of the formula (I) and/or their salts in which R1 is C2-C4-alkoxy or CO—Ra, where Ra is OH, C1-C6-alkoxy or NRbRc, where Rb and Rc independently of one another are identical or different and are H or C1-C6-alkyl, R2 is halogen or (A)n—NRdRe, where n is zero or 1, A is a group CRfRg, where Rf and Rg independently of one another are identical or different and are H or C1-C6-alkyl, Rd is H or C1-C6-alkyl and Re is H, C1-C6-alkyl or an acyl radical, where Rd and Re may also form a heterocyclic ring and where, if R1 is C2-C4-alkoxy, R2 may also be H, R3 is H or C1-C6-alkyl, m is zero or 1, X and Y independently of one another are identical or different and are C1-C6-alkyl, C1-C6-alkoxy or C1-C6-alkylthio, where each of the three radicals mentioned is unsubstituted or substituted by one or more radicals selected from the group consisting of halogen, C1-C4-alkoxy and C1-C4-alkylthio,
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: June 1, 2004
    Assignee: Aventis CropScience GmbH
    Inventors: Jochen Würtz, Jean Kocur, Hans-Peter Krause, Julio Martinez de Una, Detlev Haase, Udo Bickers, Gerhard Schnabel
  • Patent number: 6667276
    Abstract: The invention relates to surfactant systems for liquid aqueous or aqueous-organic formulations comprising a mixture of one or more basic cosurfactants and one or more surfactants from the group of the acidic phosphoric esters. The surfactant system makes possible the preparation of stable liquid formulations for active compounds, the formulations comprising (a) one or more water-soluble active compounds (type (a)) and (b) optionally one or more water-insoluble active compounds (type (b)), (c) optionally organic solvents, (d) the abovementioned surfactant system and water. The formulations are either single-phase aqueous or aqueous-organic formulations of type-(a) active compounds, for example glufosinate-ammonium or glyphosate(salts), or they are microemulsions of type-(a) and type-(b) active compounds, for example diphenyl ether herbicides.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: December 23, 2003
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Thomas Maier, Jochen Würtz
  • Patent number: 6627595
    Abstract: The present invention relates to surfactant/solvent systems for liquid formulations comprising &agr;) one or more nonaromatic-based surfactants, &bgr;) as solvent, one or more triester(s) of phosphoric acid with alcohols, preferably from the group consisting of 1 ) monohydric alkanols having 5 to 22 carbon atoms, for example with n-, i- or neo-pentanol, n-hexanol, n-octanol, 2-ethylhexanol, 2) diols or polyols, such as ethylene glycol, propylene glycol or glycerol, 3) aryl, alkylaryl, poly(alkyl)aryl and poly(arylalkyl)aryl alcohols, for example with phenol and/or cresol, octylphenol, nonylphenol, triisobutylphenol, tristyrylphenol, 4) alkoxylated alcohols obtained by reacting the alcohols mentioned above under 1), 2) or 3) with alkylene oxides, preferably (C1-C4)alkylene oxides, and 5) alkoxylated alcohols obtained by reacting monohydric alkanols having 1 to 4 carbon atoms and alkylene oxides.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: September 30, 2003
    Assignee: Aventis CropScience GmbH
    Inventors: Jochen Würtz, Gerhard Schnabel, Gerhard Frisch