Patents by Inventor Mariene Tietjen

Mariene Tietjen 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).

  • Microfine cosmetic powder comprising polymers, silicone, and lecithin
    Patent number: 5023075
    Abstract: A cosmetic containing a powder component and a silicone oil component, said powder component having microfine, low surface energy particles, at least 50% of which have an average particle size of 10 microns, at least 70% being coated with lecithin, and said powder component further containing polymethyl methacrylate, nylon and polyethylene.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: June 11, 1991
    Assignee: Revlon, Inc.
    Inventors: Ralph A. Macchio, Julio G. Russ, Brent Slobody, Mariene Tietjen