Patents by Inventor Shirley M. Ng

Shirley M. Ng 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).

  • Aqueous gel retinoid dosage form
    Patent number: 5643584
    Abstract: This invention relates to aqueous gel retinoid compositions and their methods of use. More specifically, the aqueous gel retinoid compositions of the invention utilize micronized particles of retinoids, particularly tretinoin, to provide an aqueous gel for topical application of such retinoids to the skin which minimizes skin irritation while retaining drug efficacy.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: July 1, 1997
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Richard K. Farng, Gerard J. Gendimenico, James A. Mezick, Shirley M. Ng, Stanley B. Wrobel, Jr.
  • Stable hydrogen peroxide dental gel
    Patent number: 4839156
    Abstract: A stable aqueous hydrogen peroxide dental gel for oral cleaning and anti-gingivitis application having an acid pH of about 4.5-6, comprising about 18-25% by weight of a solid flake or powder poly-oxyethylene polyoxypropylene block copolymer gelling agent, hydrogen peroxide, about 15-40% by weight of a polyethylene glycol humectant, flavor, or sweetening agent such as sodium saccharine, and a nonionic surfactant, as the essential ingredients. Distilled (deionized) water is preferred to prevent minimal contamination.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: June 13, 1989
    Assignee: Colgate-Palmolive Company
    Inventors: Shirley M. Ng, Susan Wieckowski
  • Stable hydrogen peroxide dental gel containing fumed silicas
    Patent number: 4788052
    Abstract: A stable aqueous hydrogen peroxide gel dentifrice for oral anti-gingivitis application having an acid pH of about 3-6 comprising a combination of hydrophilic and hydrophobic fumed silica gelling agent, hydrogen peroxide, about 20-40% by weight of a polyethylene glycol humectant, flavor, sweetening agent, sodium benzoate, and a nonionic surfactant as the essential ingredients, prepared by a process which comprises controlling the order of addition of the essential ingredients. Distilled (deionized) water is preferred in the formulation to prevent minimal contamination.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: November 29, 1988
    Assignee: Colgate-Palmolive Company
    Inventors: Shirley M. Ng, Denise-Marie DiTomasso