Patents by Inventor Helmut KOHLHEPP

Helmut KOHLHEPP 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).

  • Process for the preparation of 3-alkylsulfinylbenzoyl derivatives
    Patent number: 8455657
    Abstract: A process is described for the preparation of 3-alkylsulfinylbenzoyl derivatives of the formula (IIIa) by reaction of 3-alkylsulfinylbenzoic acids of the formula (Ib) with compounds of the formula (II) in the presence of a chlorinating agent and a base. In the formulae specified above, Y is a radical such as pyrazolyl and cyclohexanedionyl. R1, R2 and R3 are radicals such as halogen, nitro, cyano and alkyl.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: June 4, 2013
    Assignee: Bayer Cropscience AG
    Inventors: Mark James Ford, Jan Peter Schmidt, Helmut Kohlhepp
  • PROCESS FOR THE PREPARATION OF 3-ALKYLSULFINYLBENZOYL DERIVATIVES
    Publication number: 20120165540
    Abstract: A process is described for the preparation of 3-alkylsulfinylbenzoyl derivatives of the formula (IIIa) by reaction of 3-alkylsulfinylbenzoic acids of the formula (Ib) with compounds of the formula (II) in the presence of a chlorinating agent and a base. In the formulae specified above, Y is a radical such as pyrazolyl and cyclohexanedionyl. R1, R2 and R3 are radicals such as halogen, nitro, cyano and alkyl.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Applicant: BAYER CROPSCIENCE AG
    Inventors: Mark James FORD, Jan Peter SCHMIDT, Helmut KOHLHEPP