Patents by Inventor Douglas Allan Royce

Douglas Allan Royce 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).

  • Publication number: 20020012646
    Abstract: Disclosed are hair conditioning shampoo compositions comprising: a) from about 5% to about 50%, by weight, of a surfactant component selected from the group consisting of anionic surfactants, amphoteric surfactants, or a combination of anionic and amphoteric or zwitterionic surfactants where the amphoteric surfactants are anionic or zwitterionic at the pH of the composition; b) from about 0.01% to about 5%, by weight, of a water soluble, organic, cationic polymer hair conditioning agent having a cationic charge density of from about 0.1 meq/gram to about 1.2 meq/gram and wherein said water soluble, organic, cationic polymer hair conditioning agent has a molecular weight greater than 600,000; and c) an aqueous carrier.
    Type: Application
    Filed: May 11, 2001
    Publication date: January 31, 2002
    Inventors: Douglas Allan Royce, Robert Lee Wells, Eric Scott Johnson, Jacob Daniel Taylor, Kiichiro Nakamura, Jian-Zhong Yang
  • Patent number: 6297203
    Abstract: Disclosed are styling shampoo compositions with improved styling performance, and which comprise (a) from about 5% to about 50% by weight of a surfactant component selected from the group consisting of a combination of an anionic surfactant and an amphoteric surfactant, and a combination of an anionic surfactant and a zwitterionic surfactant; (b) from about 0.025% to about 3% by weight of a cationic deposition polymer having a cationic charge density of from about 0.2 meq/gram to about 2 meq/gram and which is selected from the group consisting of cationic cellulose polymers, cationic guar gum derivatives, and mixtures thereof, (c) from about 0.5% to about 10% by weight of an organic cationic hair styling polymer having a cationic charge density of greater than about 2 meq/gram to less than about 4.75 meq/gram; and (d) from about 27% to about 94.5% by weight water.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: October 2, 2001
    Assignee: The Procter & Gamble
    Inventors: Susan Marie Guskey, Christine Hall, Douglas Allan Royce, Kimberly Ann Schoch
  • Patent number: 5756436
    Abstract: Disclosed are aqueous conditioning shampoo compositions which comprise an anionic detersive surfactant component; dispersed, liquid, droplets of a water insoluble, hair conditioning agent having a number average particle diameter of from about 0.01 microns to about 2000 microns; from about 0.025% to about 5% by weight of an organic, cationic, non crosslinked, deposition or conditioning polymer having a cationic charge density of from about 4 meq/gm to about 7 meq/gm and an average molecular weight of from about 1,000 to about 1 million. The cationic polymer, in combination with anionic detersive surfactant component and other essential components, provides improved deposition of the conditioning agent on hair or skin, even when the dispersed conditioning agent particles have a number average particle size of up to about 2,000 microns. The composition may be applied to skin or hair, and provides improved conditioning performance even without the use of the dispersed hair conditioning agent particles.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: May 26, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Douglas Allan Royce, Susan Marie Guskey, Everett Junior Inman, Timothy Woodrow Coffindaffer