Patents by Inventor Michael Krancher

Michael Krancher 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 production of perfluoroalkysulphonyl fluorides
    Patent number: 5326437
    Abstract: In the production of perfluoroalkylsulfonyl fluorides by electrolytic fluorination of alkylsulfonyl fluoride, the electrolyte contains anhydrous hydrogen fluoride, an alkylsulfonyl fluoride, and at least one additional component selected from alkaline earth fluorides, alkali tetrafluoroborates, alkali hexafluorophosphates, hexafluorophosphoric acid, tetrafluoroboric acid, boron trioxide, boron trifluoride, or mixtures thereof.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: July 5, 1994
    Inventors: Andreas Bulan, Peter Hafermann, Michael Krancher, Rainer Weber
  • Process for the purification of anhydrous hydrogen fluoride
    Patent number: 5164052
    Abstract: Impure anhydrous hydrogen fluoride is purified by removing metallic and non-metallic impurities by electrolysis under conditions whereby no explosive gas mixture is formed in the electrolytic cell.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: November 17, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Bulan, Michael Krancher