Patents by Inventor Robert Denyer

Robert Denyer 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).

  • Dental compositions
    Patent number: 4689015
    Abstract: The invention relates to a dental composition which is suitable as a fissure sealant, dental glaze, bonding agent or orthodontic adhesive and which is a mixture of a selected vinyl urethane prepolymer, selected comonomer, and visible light cure catalyst comprising an organic amine and selected .alpha.-diketone.
    Type: Grant
    Filed: October 22, 1985
    Date of Patent: August 25, 1987
    Assignee: Imperial Chemical Industries PLC
    Inventors: Robert Denyer, Michael S. Fortuin
  • Dental compositions from urethane acrylate, diacrylate monomer, camphorquinone and dimethylaminoethyl methacrylate
    Patent number: 4457818
    Abstract: The invention relates to a dental composition which is suitable as a fissure sealant, dental glaze, bonding agent or orthodontic adhesive and which is a mixture of a selected vinyl urethane prepolymer, selected comonomer, and visible light cure catalyst comprising an organic amine and selected .alpha.-diketone.
    Type: Grant
    Filed: December 4, 1979
    Date of Patent: July 3, 1984
    Assignee: Imperial Chemical Industries PLC
    Inventors: Robert Denyer, Michael S. Fortuin