Patents by Inventor Maximilian Kunert

Maximilian Kunert 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 regenerating aqueous urea solutions
    Patent number: 4048055
    Abstract: The useful process life of aqueous urea solutions used in mineral oil urea dewaxing processes may be significantly prolonged by contacting with an acidic ion exchange resin at least a portion of the urea solution recovered from n-paraffin-urea adduct decomposition. The useful life of these aqueous urea solutions is further enhanced by contacting the urea solution with activated carbon in addition to the ion exchange resin.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: September 13, 1977
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Hans-Georg Wegner, Maximilian Kunert
  • Urea dewaxing of low n-paraffin content oils
    Patent number: 3945912
    Abstract: Mineral oils containing small amounts (less than 2 weight percent) of normal paraffins may be urea dewaxed to produce refrigerator oils having Freon cloud or flock points of at least minus 55.degree.C. by utilizing large excesses of the amount of crystalline urea theoretically required for complete conversion of the n-paraffins into solid adduct and conducting the adduct formation under conditions of vigorous agitation.
    Type: Grant
    Filed: June 28, 1974
    Date of Patent: March 23, 1976
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Maximilian Kunert, Hans-Georg Wegner