Patents by Inventor Dwayne Erick Gavin

Dwayne Erick Gavin 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).

  • Liquid dispersion polymer compositions, their preparation and their use
    Patent number: 6833406
    Abstract: Liquid dispersion polymer compositions which comprise microparticles of a hydrophilic, water soluble or swellable polymer, preferably an acrylic-based polymer, dispersed in a silicone polymer fluid and an oil-in-water surfactant, are useful to prepare microparticulate thickening systems to thicken aqueous or aqueous/organic compositions, particularly for use in personal care and pharmaceutical formulations.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: December 21, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Michael Green, Howard Roger Dungworth, Dwayne Erick Gavin, Eleanor Bernice Ridley
  • Liquid dispersion polymer compositions, their preparation and their use
    Patent number: 6365656
    Abstract: Liquid dispersion polymer compositions which comprise microparticles of a hydrophilic, water soluble or swellable polymer, preferably an acrylic-based polymer, dispersed in a di- or triglyceride oil such as soybean oil and an oil-in-water surfactant, are useful to prepare microparticulate thickening systems to thicken aqueous or aqueous/organic compositions, particularly for use in personal care and pharmaceutical formulations. The preparation and the use of these liquid dispersion polymer compositions is described.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: April 2, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Michael Green, Eleanor Bernice Ridley, Dwayne Erick Gavin