Patents by Inventor Thomas Wollner

Thomas Wollner 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).

  • Method for the regioselective synthesis of 1-alky1-3-haloalkyl-pyrazole-4-carboxylic acid derivatives
    Patent number: 8629288
    Abstract: The present invention relates to a process for the regioselective synthesis of 1-alkyl-3-halo-alkylpyrazole-4-carboxylic acid derivatives by cyclization of 2,3-disubstituted acrylic acid derivatives, and to the hydrazones formed as intermediates in the process.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: January 14, 2014
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Sergii Pazenok, Norbert Lui, Jens-Dietmar Heinrich, Thomas Wollner
  • Method for the regioselective synthesis of 1-Alkyl-3-haloalkyl-pyrazole-4-carboxylic acid derivatives
    Patent number: 8592605
    Abstract: The present invention relates to a process for the regioselective synthesis of 1-alkyl-3-halo-alkylpyrazole-4-carboxylic acid derivatives by cyclization of 2,3-disubstituted acrylic acid derivatives, and to the hydrazones formed as intermediates in the process.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 26, 2013
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Sergii Pazenok, Norbert Lui, Jens-Dietmar Heinrich, Thomas Wollner
  • Method for the production of 2-fluoroacyl-3-aminoacrylic acid derivatives
    Patent number: 8288582
    Abstract: The present invention relates to a process for preparing 2-fluoroacyl-3-aminoacrylic acid derivatives by reacting fluorinated carboxylic acids with dialkylaminoacrylic acid derivatives and acid halides.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: October 16, 2012
    Assignee: Bayer CropScience AG
    Inventors: Norbert Lui, Thomas Wollner, Jürgen Wieschmeyer, Michael Dockner, Jens-Dietmar Heinrich
  • Process for preparing fluoroalkyl nitriles
    Patent number: 8203015
    Abstract: The present invention relates to a process for preparing fluoroalkyl nitriles by reacting fluorinated carboxamides with halides and fluorinated carboxylic acids.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: June 19, 2012
    Assignee: Bayer Cropscience AG
    Inventors: Norbert Lui, Jens-Dietmar Heinrich, Thomas Wollner, Sergii Pazenok
  • Method for producing substituted pyrazolecarboxylic acid chlorides
    Patent number: 7977494
    Abstract: The present invention relates to a process for preparing substituted pyrazolyl chlorides by chlorinating aldehydes of the formula (II) under free-radical conditions.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: July 12, 2011
    Assignee: Bayer Cropscience AG
    Inventors: Norbert Lui, Jens-Dietmar Heinrich, Alexander Straub, Thomas Wollner, James Mark Ford
  • Process For Preparing Fluoroalkyl Nitriles
    Publication number: 20100312002
    Abstract: The present invention relates to a process for preparing fluoroalkyl nitriles by reacting fluorinated carboxamides with halides and fluorinated carboxylic acids.
    Type: Application
    Filed: June 7, 2010
    Publication date: December 9, 2010
    Applicant: Bayer CropScience AG
    Inventors: Norbert Lui, Jens-Dietmar Heinrich, Thomas Wollner, Sergii Pazenok
  • Method for the production of 2-fluoroacyl-3-aminoacrylic acid derivatives
    Publication number: 20100274049
    Abstract: The present invention relates to a process for preparing 2-fluoroacyl-3-aminoacrylic acid derivatives by reacting fluorinated carboxylic acids with dialkylaminoacrylic acid derivatives and acid halides.
    Type: Application
    Filed: December 16, 2008
    Publication date: October 28, 2010
    Applicant: BAYER CROPSCIENCE AG
    Inventors: Norbert Lui, Thomas Wollner, Jürgen Wieschmeyer, Michael Dockner, Jens-Dietmar Heinrich
  • METHOD FOR PRODUCING SUBSTITUTED PYRAZOLECARBOXYLIC ACID CHLORIDES
    Publication number: 20100041899
    Abstract: The present invention relates to a process for preparing substituted pyrazolyl chlorides by chlorinating aldehydes of the formula (II) under free-radical conditions.
    Type: Application
    Filed: January 9, 2008
    Publication date: February 18, 2010
    Applicant: Bayer Crop Science AG
    Inventors: Norbert Lui, Jens-Dietmar Heinrich, Alexander Straub, Thomas Wollner, James Mark Ford