Patents by Inventor Michael P. Diulus

Michael P. Diulus 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).

  • Stable anhydrous topically-active composition and suspending agent therefor
    Patent number: 5444096
    Abstract: An anhydrous, topically-effective composition that resists phase separation and exhibits improved properties comprising a topically-active compound, such as an astringent salt; an improved suspending agent comprising a finely-divided silica and a suspending wax composition; and a suitable volatile liquid carrier, such as a volatile silicone or a volatile hydrocarbon. The suspending wax composition comprises a wax, an ester including at least 10 to about 32 carbon atoms and a volatile liquid carrier. The anhydrous, topically-effective composition is useful in topical cosmetic and medicinal preparations, such as antiperspirants, sunscreens and topical drug products, and is especially useful in cosmetic and medicinal preparations wherein an insoluble topically-active compound is dispersed throughout a liquid phase.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: August 22, 1995
    Assignee: Helene Curtis, Inc.
    Inventors: Andrew D. McCrea, Michael P. Diulus
  • Stable anhydrous topically-active composition and suspending agent therefor
    Patent number: 5292530
    Abstract: An anhydrous, topically-effective composition that resists phase separation and exhibits improved properties comprising a topically-active compound, such as an astringent salt; an improved suspending agent comprising a finely-divided silica and a suspending wax composition; and a suitable volatile liquid carrier, such as a volatile silicone or a volatile hydrocarbon. The suspending wax composition comprises a wax, an ester including at least 10 to about 32 carbon atoms and a volatile liquid carrier. The anhydrous, topically-effective composition is useful in topical cosmetic and medicinal preparations, such as antiperspirants, sunscreens and topical drug products, and is especially useful in cosmetic and medicinal preparations wherein an insoluble topically-active compound is dispersed throughout a liquid phase.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: March 8, 1994
    Assignee: Helene Curtis, Inc.
    Inventors: Andrew D. McCrea, Michael P. Diulus