Patents by Inventor Marinus Gerardus Cornelis Kivits

Marinus Gerardus Cornelis Kivits 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 obtaining growth factor (tgf-beta and igf-1), lactoperoxidase and immunoglobulins preparations from milk products having low mutual cross-contamination
    Publication number: 20040219225
    Abstract: Process for extracting beneficial compounds, in particular growth factors, such as TGF &bgr; and IGF-1 from milk. In this process a hydrophobic interaction chromatography step is included. A resin having a butyl group, or a phenyl group as the ligand is used as hydrophobic interaction resin. The resin can be eluted with a salt gradient which, when the ligand is a phenyl group, contains substantially no alcohol, and thus resulting in fractions enriched in the desired growth factors. These fractions can be separated further with a hydroxyapatite column.
    Type: Application
    Filed: June 21, 2004
    Publication date: November 4, 2004
    Inventors: Marinus Gerardus Cornelis Kivits, Catharina Maria Galama, Andor Wilhelm Joseph Hendriks
  • Process for recovering growth factors, or a composition containing one or more growth factors, from milk or a milk derivative
    Patent number: 6010698
    Abstract: The invention relates to a process for recovering one or more growth factors from milk or a milk derivative, comprising adsorbing at least one growth factor from the milk or the milk derivative to a cation exchanger, followed by fractionated elution of the cation exchanger, whereby at least one fraction is obtained which is enriched in growth factors, followed by the further treatment of this fraction at a pH of at least 3.5 and not more than 4.5.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: January 4, 2000
    Assignee: Campina Melkunie B. V.
    Inventors: Klaas Daniel Kussendrager, Marinus Gerardus Cornelis Kivits, Hubert Karel Lemmen, Theodorus Johannes Antonia Maria van Kessel