Patents by Inventor Rinke Marcel

Rinke Marcel 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 isolation of levulinic acid
    Patent number: 9856203
    Abstract: The invention relates to a process for the isolation of levulinic acid from an organic solution, comprising washing said organic solution with an alkaline aqueous stream to yield a washed organic solution; subjecting the washed organic solution to a distillation to yield a distillate and a distillation residue; and recovering levulinic acid from the distillate or the residue. This process may result in high yields of levulinic acid.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: January 2, 2018
    Assignee: Georgia-Pacific LLC
    Inventors: Pierre Louis Woestenborghs, Rinke Marcel