Patents by Inventor Stefan Fülster

Stefan Fülster 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 substituted phenoxyphenyl ketones
    Patent number: 10093634
    Abstract: The present invention relates to a process for the preparation of the ketone compounds (IA) and their use as intermediates for the preparation of triazole fungicides.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: October 9, 2018
    Assignee: BASF AGRO B.V.
    Inventors: Uwe Josef Vogelbacher, Joachim Gebhardt, Michael Rack, Roland Goetz, Stefan Fuelster
  • PROCESS FOR THE PREPARATION OF SUBSTITUTED PHENOXYPHENYL KETONES
    Publication number: 20160318881
    Abstract: The present invention relates to a process for the preparation of the ketone compounds (IA) and their use as intermediates for the preparation of triazole fungicides.
    Type: Application
    Filed: December 8, 2014
    Publication date: November 3, 2016
    Applicant: BASF AGRO B.V.
    Inventors: Uwe Josef VOGELBACHER, Joachim GEBHARDT, Michael RACK, Roland GOETZ, Stefan FUELSTER
  • Method for producing and purifying trifluoromethanesulfinic acid
    Patent number: 8354007
    Abstract: The invention relates to a process for purifying trifluoromethanesulfinic acid by azeotropic distillation with an aromatic solvent, to processes for preparing purified trifluoromethanesulfinic acid and to the use of the purified trifluoronnethanesulfinic acid for preparing trifluoromethylsulfinylated pyrazole derivatives, especially fipronil.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: January 15, 2013
    Assignee: BASF SE
    Inventors: Martin Sukopp, Alexander Korte, Stefan Fülster, Michael Keil, Michael Rack
  • Method for Producing and Purifying Trifluoromethanesulfinic Acid
    Publication number: 20110190510
    Abstract: The invention relates to a process for purifying trifluoromethanesulfinic acid by azeotropic distillation with an aromatic solvent, to processes for preparing purified trifluoromethanesulfinic acid and to the use of the purified trifluoronnethanesulfinic acid for preparing trifluoromethylsulfinylated pyrazole derivatives, especially fipronil.
    Type: Application
    Filed: September 28, 2009
    Publication date: August 4, 2011
    Applicant: BASF SE
    Inventors: Martin Sukopp, Alexander Korte, Stefan Fülster, Michael Keil, Michael Rack