Patents by Inventor Michael F. Petko

Michael F. Petko 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).

  • High internal phase emulsions
    Patent number: 4606913
    Abstract: An improved high-internal-phase emulsion having increased stability under conditions of long term storage at elevated temperatures and freeze-thaw conditions, methods for preparing and stabilizing said emulsions and cosmetic preparations based thereon are disclosed. The improvement comprises incorporating into said emulsion an amount sufficient to increase the stability of said emulsion of an electrolyte contained in the aqueous phase of the emulsion.
    Type: Grant
    Filed: December 14, 1979
    Date of Patent: August 19, 1986
    Assignee: Lever Brothers Company
    Inventors: Michael P. Aronson, Michael F. Petko