Patents by Inventor Stephen Wilkowski

Stephen Wilkowski 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).

  • Siloxane-containing oil compositions with good spreading properties
    Patent number: 6669949
    Abstract: This invention relates to asymmetrical, substituted polysiloxanes which show good compatibility in a variety of oils and improve the spreading behavior of oil-based formulations, to a process for preparing these asymmetrical polysiloxanes and to oil formulations containing said asymmetrical polysiloxanes. The asymmetrical polysiloxanes of this invention are used in herbicidal and pesticidal compositions, in cosmetic and pharmaceutical preparations as well as in industrial applications. The assymmetrical substituted polysiloxanes have the following formula wherein R1, R2, Z a and b are described herein.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: December 30, 2003
    Assignee: Goldschmidt AG
    Inventors: Wayne Kennedy, Arno Knebelkamp, Peter Lersch, Jörg Simpelkamp, Stephen Wilkowski
  • Siloxane-containing oil compositions with good spreading properties
    Publication number: 20010039321
    Abstract: This invention relates to asymmetrical, substituted polysiloxanes which show good compatibility in a variety of oils and improve the spreading behavior of oil-based formulations, to a process for preparing these asymmetrical polysiloxanes and to oil formulations containing said asymmetrical polysiloxanes. The asymmetrical polysiloxanes of this invention are used in herbicidal and pesticidal compositions, in cosmetic and pharmaceutical preparations as well as in industrial applications.
    Type: Application
    Filed: June 14, 2001
    Publication date: November 8, 2001
    Inventors: Wayne Kennedy, Arno Knebelkamp, Peter Lersch, Jorg Simpelkamp, Stephen Wilkowski