Patents by Inventor Ralph F. Medcalf, Jr.

Ralph F. Medcalf, Jr. 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).

  • Mild skin cleansing soap bar with hydrated cationic polymer skin conditioner
    Patent number: 5064555
    Abstract: Disclosed is a mild skin cleansing soap bar composition comprising: (1) 50-90% soap, and (2) a hydrated cationic polymeric skin conditioner. The physical composition of the bar is such that the hydrated polymer is substantially uniformly distributed and well incorporated in the soap. The hydrated cationic polymer improves the mildness of the soap bar to a level approaching that of bars made with very mild synthetic surfactants, while maintaining the desirable physical characteristics of a pure soap bar without the polymer.The preferred polymer is a hydrated cationic guar gum having a typical aqueous viscosity at 1% of from about 125 cps to about 3500.+-.500 cps.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: November 12, 1991
    Assignee: The Procter & Gamble Company
    Inventors: Ralph F. Medcalf, Jr., Martha O. Visscher, John R. Knochel, Richard M. Dahlgren
  • Containing butoxy-propanol with low secondary isomer content
    Patent number: 4943392
    Abstract: Aqueous detergent compositions containing butoxy-propanol with a low level of the "secondary" isomer have improved odor characteristics with a variety of perfume compositions even when the compositions contain other typical cosolvents. Preferred compositions include hard surface cleaners having good filming and streaking properties. The compositions contain a detergent surfactant and, desirably, a detergent builder.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: July 24, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Charlene M. Hastedt, Ralph F. Medcalf, Jr., Geneva G. Otten
  • Mild skin cleansing soap bar with hydrated cationic polymer skin conditioner
    Patent number: 4820447
    Abstract: Disclosed is a mild skin cleansing soap bar composition comprising: (1) 50-90% soap, and (2) a hydrated cationic polymeric skin conditioner. The physical composition of the bar is such that the hydrated polymer is substantially uniformly distributed and well incorporated in the soap. The hydrated cationic polymer improves the mildness of the soap bar to a level approaching that of bars made with very mild synthetic surfactants, while maintaining the desirable physical characteristics of a pure soap bar without the polymer.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: April 11, 1989
    Assignee: The Proctor & Gamble Company
    Inventors: Ralph F. Medcalf, Jr., Martha O. Visscher, John R. Knochel, Richard M. Dahlgren
  • Transparent or translucent toilet soap bars containing water-insoluble silica or silicates
    Patent number: 4719030
    Abstract: Detergent compositions in bar form comprising a water-insoluble, synthetic, amorphous, particulate silica or silicate having a specific surface area of at least 25 square meters per gram. The compositions are preferably milled toilet bars and demonstrate improved lathering, smear, cleansing performance and skin feel characteristics.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: January 12, 1988
    Assignee: The Procter & Gamble Company
    Inventors: Michael K. Williams, Geoffrey G. Dawson, Ralph F. Medcalf, Jr.