Patents Represented by Attorney Kevin L. Waugh
  • Patent number: 6358912
    Abstract: Liquid hard-surface cleaning compositions are disclosed which provide outstanding cleaning performance to the hard-surfaces cleaned therewith. The compositions comprise a polyalkoxylene glycol diester according to formula (I) wherein the substituents R1 and R2 each independently are substituted or unsubstituted, saturated or unsaturated, linear or branched hydrocarbon chains having from 1 to 36 carbon atoms and wherein n is an integer form 10 to 400, and an amphoteric surfactant according to the formula (II): RaRbRcN or RaRbRcN+X wherein the substituent Ra is a substituted or unsubstituted, saturated or unsaturated, linear or branched hydrocarbon chain having from 6 to 22 carbon atoms, wherein the substitutents Rb and Rc each independently are a C1 to C6 aklyl carboxylic acid group, which may be the same or different, and wherein X is hydrogen.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: March 19, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Marc François Theophile Evers, Neil James Gordon
  • Patent number: 6322748
    Abstract: A method for removing stains or odors and for disinfecting plastics, dishware, countertops, appliances, and other substrates by activating a bleaching composition with microwaves and applying the activated composition to the substrate to be cleaned, deodorized, and/or sanitized is presented. This method provides enhanced cleaning and improved stain removal as compared to the conventional use of cleaning compositions applied directly to a substrate.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: November 27, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Howard David Hutton, Kofi Ofosu-Asante
  • Patent number: 6258750
    Abstract: The invention provides pesticidal, algicidal, herbicidal and/or fungicidal compositions, containing a complexing agent containing ethylene diamine disuccinic acid and one or selected metal ions, preferably cobalt, zinc or ions. The invention also relates to an aqueous pesticidal, algicidal, herbicidal, fungicidal composition comprising specific levels of calcium ions and complexing agent, containing a complex of a specific metal ion and a complexing a compound.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: July 10, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Anthony Joseph Simpson, Stephen Wayne Heinzman, Barry Thomas Ingram
  • Patent number: 6200793
    Abstract: A psychrophilic protease is here disclosed which has the following physicochemical properties: (a) specific activity and substrate specificity: the protease acts on casein, gelatin, hemoglobin and albumin to specifically decompose them, and the substrate specificity decreases in the order of casein, gelatin, hemoglobin and albumin; (b) optimal pH: 8.0; (c) pH stability: the protease is stable in the range of pH 6.5 to pH 10.0 at 30° C. for 1 hour; (d) optimal temperature: about 40° C.; (e) temperature stability: at pH 7 for 1 hour, the protease is active at a temperature up to 30° C., but it is inactivated at 40° C. as much as about 40% and completely inactivated at 50° C. in about 10 minutes; (f) enzyme activity: the protease has 50% or more of its maximum activity at about 20° C.; (g) the active center of the enzyme is serine; and (h) the molecular weight of the protease is about 70 kDa as measured by SDS-PAGE.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: March 13, 2001
    Assignees: The Procter & Gamble Company, Japan Advanced Institute of Science and Technology
    Inventors: A. K. M. Quamrul Hasan, Eiichi Tamiya
  • Patent number: 6197070
    Abstract: Fabrics are laundered in detergent compositions containing a mixture of &agr;-amylase enzymes to remove malodorous materials.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: March 6, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Wilhelm Hörner, Kristien Greta Govers
  • Patent number: 6187740
    Abstract: Granular detergent compositions contain a bleach and a cellulase enzyme derived from Trichodenna SPP. The compositions are especially useful in a fabric laundering process where bleaching activity is desired.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: February 13, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Jean-Luc Philippe Bettiol, Christiaan Arthur Jacques Kamiel Thoen
  • Patent number: 6165966
    Abstract: Aqueous liquid detergent compositions are described which comprising a proteolytic enzyme wherein the proteolytic activity is reversibly inhibited by a protease inhibitor selected from the group consisting of aldehydes and trifluoromethyl ketones.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: December 26, 2000
    Assignee: The Procter & Gamble Company
    Inventors: John McMillan McIver, Alan Carl Huber, Kirsten Louise McKillop