Patents by Inventor Dennis Brian Sinfield

Dennis Brian Sinfield 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).

  • Borage seed oil as an anti-irritant in compositions containing hydroxy acids or retinoids
    Patent number: 5989572
    Abstract: Compositions containing hydroxy acids and/or retinoids and further containing borage seed oil as an anti-irritant. Borage seed oil was found to be uniquely effective (when compared to gamma-linolenic acid, or other anti-irritants containing gamma-linolenic acid or other known anti-irritants) in reducing the irritation caused by hydroxy acids and/or retinoids.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: November 23, 1999
    Assignee: Chesebrough-Pond's USA Co.
    Inventors: Stephan Samuel Habif, John Brian Bartolone, Dennis Brian Sinfield, Falguni Snehal Nanavaty
  • Compositions comprising high loading water-dispersible UVA and/or UVB light-absorbing copolymer
    Patent number: 5698183
    Abstract: The invention is concerned with compositions comprising novel water-dispersible copolymers which contain at least one UVA light-absorbing monomer, one UVB light-absorbing monomer, one hydrophilic monomer, and optionally one hydrophobic monomer component. The UVA light-absorbing monomer absorbs at .lambda.max ultraviolet light in the 320-400 nm range. The UVB light-absorbing monomer absorbs at .lambda.max ultraviolet light in the 290-320 nm range. Because of the R.sub.3 group used in the invention, the copolymers used in the compositions of the invention permit higher loading of UV monomers than previously obtainable.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: December 16, 1997
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Matthew Evan Langer, John Frederick Hessel, Ferial Khorshahi, Dennis Brian Sinfield
  • Borage seed oil as an anti-irritant in compositions containing hydroxy acids or retinoids
    Patent number: 5690947
    Abstract: Compositions containing hydroxy acids and/or retinoids and further containing borage seed oil as an anti-irritant. Borage seed oil was found to be uniquely effective (when compared to gamma-linolenic acid, or other anti-irritants containing gamma-linolenic acid or other known anti-irritants) in reducing the irritation caused by hydroxy acids and/or retinoids.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: November 25, 1997
    Assignee: Chesebrough-Pond's USA Co., Division of Conopco, Inc.
    Inventors: Stephan Samuel Habif, John Brian Bartolone, Dennis Brian Sinfield, Falguni Snehal Nanavaty