Patents by Inventor Georg Gro?mann

Georg Gro?mann 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 extracting impurities using ionic liquids
    Patent number: 7605297
    Abstract: The invention relates to a process for the extractive removal of phenols, alcohols, amines, phoshines, hydroxylamines, hydrazines, oximes, imines, water, carboxylic acids, amino acids, hydroxamic acids, sulfinic acids, sulfonic acids, peroxycarboxylic acids, phosphonous acids, phosphinous acids, phosphonic acids, phosphinic acids or phosphoric acids from aprotic solvents by means of ionic liquids of the formula [K]n+[A]n?, where n, [K]+ and An? are defined as in the description.
    Type: Grant
    Filed: July 3, 2004
    Date of Patent: October 20, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Maase, Manuel Budich, Georg Groβmann, Laszlo Szarvas