Patents by Inventor Joshua James Tuinstra

Joshua James Tuinstra 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).

  • Methods of saponifying xanthophyll esters and isolating xanthophylls
    Patent number: 8716533
    Abstract: This invention relates to a practical and effective process for converting esterified xanthophylls, including zeaxanthin, to non-esterified xanthophylls through saponification. In addition, the invention provides a process for obtaining esterified zeaxanthin in high yields and purities, isolating the xanthophylls from interfering substances such as waxes, oils, and fats. A product of this process is a zeaxanthin rich substrate that is suitable for use in foods, nutritional supplements, cosmetics, pharmaceuticals and related products.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: May 6, 2014
    Assignee: Kalamazoo Holdings, Inc.
    Inventors: Joshua James Tuinstra, Gregory S. Reynhout, James Barren
  • PROCESS FOR THE PREPARATION OF ISOHUMULONE COMPOSITIONS
    Publication number: 20120184780
    Abstract: A process for preparing isohumulone compositions, which process provides an improvement over the extant art, and yields an isohumulone preparation derived from a hop extract of high yield and purity, which has excellent physical stability, and is essentially free from undesirable lupulones, fatty acids, hop oils and degradation compounds.
    Type: Application
    Filed: September 22, 2010
    Publication date: July 19, 2012
    Applicant: KALAMAZOO HOLDINGS, INC.
    Inventors: Joshua James Tuinstra, Peter Collins Vanalstyne, Brian Patrick Buffin
  • METHODS OF SAPONIFYING XANTHOPHYLL ESTERS AND ISOLATING XANTHOPHYLLS
    Publication number: 20120107380
    Abstract: This invention relates to a practical and effective process for converting esterified xanthophylls, including zeaxanthin, to non-esterified xanthophylls through saponification. In addition, the invention provides a process for obtaining esterified zeaxanthin in high yields and purities, isolating the xanthophylls from interfering substances such as waxes, oils, and fats. A product of this process is a zeaxanthin rich substrate that is suitable for use in foods, nutritional supplements, cosmetics, pharmaceuticals and related products.
    Type: Application
    Filed: May 28, 2010
    Publication date: May 3, 2012
    Applicant: Kalamazoo Holdings, Inc.
    Inventors: Joshua James Tuinstra, Gregory S. Reynhout, James Barren
  • Process for the preparation of tetrahydroisohumulone compositions
    Publication number: 20110117252
    Abstract: A process for preparing tetrahydroisohumulone compositions from a hop extract, which process provides an improvement over the extant art, and provides a tetrahydroisohumulone preparation of high yield and purity, which tetrahydroisohumulone preparation exhibits excellent physical stability, and is essentially free from undesirable lupulones, fatty acids, hop oils and degradation compounds.
    Type: Application
    Filed: November 10, 2010
    Publication date: May 19, 2011
    Inventors: Brian Patrick Buffin, Joshua James Tuinstra, Peter Collins Vanalstyne, Elizabeth Barren, Paul H. Todd, JR., James Melvin, Bradley Weller