Patents by Inventor Robert Francis Date

Robert Francis Date 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).

  • Patent number: 6740311
    Abstract: Oral care compositions comprising unique silica abrasives and methods for polishing and cleaning dental enamel using these oral care compositions are disclosed.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: May 25, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Donald James White, Jr., Kathleen Marie Kozak, Vincent Bercovici, Robert Francis Date
  • Publication number: 20040033205
    Abstract: The present invention provides a method of whitening a person's teeth comprising treating the teeth with a whitening dentifrice and subsequently, but within a ten minute period thereafter, applying a self-supporting film of liquid bleaching product to said teeth, for a bleaching period of at least five minutes, preferably overnight. At the end of the bleaching period the whitening dentifrice can be used to remove residual bleaching product and the whole process repeated. The whitening dentifrice comprises a surface stain remover, selected from water-soluble polyphosphates, phosphonate polymers and dental abrasives having an RDA value greater than 120, which enhances the whitening effect. The bleaching product comprises a tooth bleaching agent and a liquid carrier and has a viscosity of less than 1000 mPa.s at a shear rate of 10s−1 and a temperature of 25° C.
    Type: Application
    Filed: August 14, 2003
    Publication date: February 19, 2004
    Applicant: The Procter & Gamble Company
    Inventors: Robert Francis Date, Samantha Jane Price, Donald James White
  • Patent number: 6551604
    Abstract: The present invention relates to topical compositions for effecting an immediate improvement in the appearance and feel of skin, in addition to providing chronic improvements in skin appearance. The compositions comprise from 0.5% to 25% of a first particulate material having a refractive index of from 1.3 to 1.7, the particulate material being dispersed in the composition and having a median particle size of from 2 to 30 um, and an active effective for chronically regulating skin condition selected from Vitamin B3 compounds, retinoids, and mixtures thereof. Preferred emobodiments are oil in water emulsions further comprising a second particulate material having a larger particle size than the first.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: April 22, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Petra Helga Beck, Robert Francis Date, Mario Elmen Tremblay
  • Publication number: 20030039617
    Abstract: Oral care compositions comprising unique silica abrasives and methods for polishing and cleaning dental enamel using these oral care compositions are disclosed.
    Type: Application
    Filed: June 24, 2002
    Publication date: February 27, 2003
    Inventors: Donald James White, Kathleen Marie Kozak, Vincent Bercovici, Robert Francis Date
  • Patent number: 6096325
    Abstract: A skin care composition in the form of an oil-in-water dispersion includes, by weight:a) from about 0.1% to about 20% of a silicone component comprising a silicone gum having a molecular weight of from about 200,000 to about 4,000,000;b) from about 2% to about 10% of an emulsifier capable of forming liquid crystals in water and comprising sucrose fatty acid ester and sorbitan fatty acid ester; andc) humectant;wherein at least a portion of the humectant is in the form of an admixture with a particulate carrier material, the weight ratio of humectant to carrier is from about 1:4 to about 3:1, and the particulate carrier is a cross-linked polymethacrylate copolymer.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: August 1, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Robert Francis Date, Elise Courpron, Zahid Nawaz, Richard George A. Rolls
  • Patent number: 5879689
    Abstract: A skin care composition in the form of an oil-in-water dispersion or emulsion is disclosed. The composition contains an emulsifier capable of forming liquid crystals in water which comprises a fatty acid ester blend of sorbitan fatty acid ester and sucrose fatty acid ester. The ratio of primary oil phase to fatty acid ester blend is in the range of about 6:1 to about 1:1.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: March 9, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Robert Francis Date, Elise Courpron, Zahid Nawaz, Richard George A. Rolls
  • Patent number: 5858340
    Abstract: A skin or hair care composition in the form of an aqueous gel comprising a humectant, a water-soluble polyglycerylmethacrylate lubricant, a hydrophilic gelling agent and a polyethyleneglycol glyceryl fatty ester surfactant. The compositions provide improved moisturization, skin feel and skin care benefits, reduced tack and residue characteristics together with excellent visual clarity, rub-in and absorption characteristics.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: January 12, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Gillian Scott Briggs, Robert Francis Date, Marie-Isabelle Moine
  • Patent number: 5674509
    Abstract: A skin care composition in the form of an oil-in-water dispersion which comprises a silicone gum having a molecular weight of from about 200,000 to about 4,000,000 and wherein the composition additionally incorporates a fatty acid ester emulsifier based on a mixture of sorbitan acid ester and sucrose fatty acid ester. The composition provides improved moisturization, skin feel and skin care benefits and reduced greasiness, together with excellent rub-in and absorption characteristics.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: October 7, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Robert Francis Date, Elise Courpron, Zahid Nawaz, Richard George A. Rolls
  • Patent number: 5641493
    Abstract: A skin care composition in the form of an oil-in-water dispersion comprising from 4% to 16% of a primary oil and a liquid crystal fatty acid ester emulsifier based on a mixture of sorbitan fatty acid ester and sucrose fatty acid ester. The composition provides improved moisturization, skin feel and skin care benefits, reduced greasiness, as well as excellent rub-in absorption characteristics.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: June 24, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Robert Francis Date, Elise Courpron, Zahid Nawaz, Richard George A. Rolls