Patents by Inventor Uwe Welz-Biermann

Uwe Welz-Biermann 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 organic salts containing bis(perfluoroalkyl) phosphinate anions
    Publication number: 20070128515
    Abstract: The invention relates to a method for the production of organic salts containing bis(perfluoroalkyl)phosphinate anions. According to said method, a tris(perfluoroalkyl)phosphine oxide is reacted with an alcohol and an organic base, which is stronger than the alcohol. The invention also relates to the salts which are produced according to said method and to the use thereof as ionic liquids.
    Type: Application
    Filed: October 26, 2004
    Publication date: June 7, 2007
    Inventors: Nikolai Ignatyev, Uwe Welz-Biermann, Helge Willner, Andriy Kucheryna