Patents by Inventor Ronald P. Wirth

Ronald P. Wirth 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 recovery of amino acids from aqueous mixtures
    Patent number: 4936999
    Abstract: Disclosed is a process for recovery of amino acids from aqueous mixtures. In particular, it relates to a treatment of said amino acid containing aqueous mixture prior to extraction of the amino acid with a water immiscible organic solution containing a water insoluble extractant for said amino acid. The overall process of the invention which includes the pretreatment and extraction, also includes optional methods of recovering said extracted amino acid from the water immiscible organic solution. Accordingly, the invention also relates to a process for recovery of the amino acid by stripping of the amino acid from the organic solution and precipitation of the amino acid.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: June 26, 1990
    Assignee: Henkel Corporation
    Inventors: Phillip L. Mattison, Ronald P. Wirth, Michael J. Virnig, LeRoy Krbechek
  • Process for recovery of an amino acid from aqueous mixtures thereof
    Patent number: 4886889
    Abstract: Disclosed is a process for recovery of amino acids from aqueous mixtures. In particular, it relates to a treatment of said amino acid containing aqueous mixture prior to extraction of the amino acid with a water immiscible organic solution containing a water insoluble extractant for said amino acid. The overall process of the invention which includes the pretreatment and extraction, also includes optional methods of recovering said extracted amino acid from the water immiscible organic solution. Accordingly, the invention also relates to a process for recovery of the amino acid by stripping of the amino acid from the organic solution and precipitation of the amino acid.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: December 12, 1989
    Assignee: Henkel Corporation
    Inventors: Phillip L. Mattison, Ronald P. Wirth, Michael J. Virnig, LeRoy Krbechek
  • Diester derivatives of tocopherol
    Patent number: 4665204
    Abstract: Tocopherol diester derivatives having high vitamin E potency can be produced by the esterification of tocopherol acid esters with amino alcohols. Some preferred tocopherol diesters also have excellent water solubility. One of the preferred diesters is the tocopherol diester having choline, a vitamin B.sub.4 moiety.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: May 12, 1987
    Assignee: Henkel Corporation
    Inventor: Ronald P. Wirth