Patents by Inventor Hein Simon Koger

Hein Simon Koger 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).

  • Phytosphingosine-based ceramide I analogs
    Patent number: 6054599
    Abstract: Novel phytosphingosine-based analogs of ceramide I, methods for the preparation of these novel compounds, cosmetic and pharmaceutical compositions containing such compounds, and methods for the use thereof are described.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: April 25, 2000
    Assignee: DSM N.V.
    Inventors: Pieter Gijsbert Weber, Johannes Wilhelmus Jacobus Lambers, Hein Simon Koger, Jan Verweij
  • Phytosphingosine-based ceramide I analogs
    Patent number: 5919960
    Abstract: The present invention describes phytospringosine-based analogs of ceramides I, as well as cosmetics and pharmaceutical compositions containing these novel compounds and their use.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: July 6, 1999
    Assignee: Gist-brocades, B.V.
    Inventors: Pieter Gijsbert Weber, Johannes Wilhelmus Jacobus Lambers, Hein Simon Koger, Jan Verweij
  • Linoleoylamide based ceramide derivative and its use in cosmetic preparations for the treatment of dry skin
    Patent number: 5840940
    Abstract: The present invention discloses a novel ceramide 3 derivative which is N-linoleoylphytosphingosine (Ceramide IIIA). In addition, a method for preparing this compound is described. The solubility of this diunsaturated ceramide IIIA is much higher than the solubility of ceramide 1 and a saturated ceramide 3 compound. Compositions containing ceramide IIIA are described which are suitable for topical use. Furthermore, a method is given for maintaining the water permeability characteristics of the skin using compositions comprising ceramide IIIA.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: November 24, 1998
    Assignee: Gist-Brocades B.V.
    Inventors: Robertus Mattheus De Pater, Hein Simon Koger, Johannes Wilhelmus Jacobus Lambers, Jan Verweij