Patents Represented by Attorney Kevin L. Waugh
  • Patent number: 6485629
    Abstract: A process for separating a first source of a heavy metal ion or mixtures of heavy metal ions, (Me1), from a solution comprising a complex of said Me1 and EDDS, (Me1-EDDS), by displacement of said Me1 with a second source of a heavy metal ion Me2 by addition to the solution of a salt of said Me2.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: November 26, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Diederik Rudolf Schowanek, Tom Cornelis Jan Feijtel
  • Patent number: 6484735
    Abstract: Liquid hard-surfaces cleaning compositions are disclosed which have a pH above 9 and comprise a copolymer of N-vinylpyrrolidone and an alkylenically unsaturated monomer or a mixture thereof, preferably a quaternized or unquaternized vinylpyrrolidone/dialkylaminoalkyl acrylate or methacrylate copolymer. These compositions provide excellent first time and next time cleaning performance on hard-surfaces soiled by various soils especially grease while exhibiting excellent stability against bacterial contamination.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: November 26, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Neil James Gordon, Marc François Theophile
  • Patent number: 6482994
    Abstract: Ether-capped poly(oxyalkylated) alcohol surfactants having superior grease cleaning abilities and improved spotting/filming benefits are provided.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: November 19, 2002
    Assignee: The Procter & Gamble Company
    Inventors: William Michael Scheper, Mark Robert Sivik
  • Patent number: 6482793
    Abstract: Liquid hard-surface cleaning compositions are disclosed which provide outstanding next-time cleaning performance to the hard-surfaces cleaned therewith. The compositions comprise from 0.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: November 19, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Neil James Gordon, Marc François Theophile Evers
  • Patent number: 6479446
    Abstract: Compositions described herein are aqueous detergent compositions, preferably hard surface cleaning compositions, which contain a flexible lamellar sheet phase dispersed in the aqueous phase. The compositions are viscous, provide excellent soap scum and hard water properties and are easy to rinse. Such compositions are formulated by using an alkylaryl detergent composition in combination with an alcohol and/or cationic surfactant, together with a hydrotropic solvent, in an acidic system further optionally comprising a peroxide.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: November 12, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Alan Edward Sherry, Jeffrey Lawrence Flora, Jason Michael Knight, Zuchen Lin
  • Patent number: 6462007
    Abstract: A multi-layered detergent tablet comprising: a) a core having a first detergent active agent; b) a first encapsulating layer surrounding said core, having a second detergent active agent; c) a second encapsulating layer surrounding said first encapsulating layer, having a third detergent active agent and a disruption system; wherein disruption of said second encapsulating layer is such that at least 25% of said third detergent active agent is released prior to release of said second detergent active agent.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: October 8, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Lucio Pieroni, Peter Robert Foley, Lynda Anne Speed, Xiaoqing Song
  • Patent number: 6460548
    Abstract: Liquid hard-surface cleaning compositions are disclosed which comprise particular dicapped polyalkoxylene glycols. These compositions provide excellent next-time cleaning performance on hard-surfaces soiled by various soils, especially greasy type soils and/or burnt/sticky food residues typically found in a kitchen.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: October 8, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Neil James Gordon, Marc Francois Theophile Evers
  • Patent number: 6451754
    Abstract: A process for preparing a detergent tablet comprises the steps of compressing a composition comprising an active detergent component to form a compressed portion and delivering a composition comprising an active detergent component in the form of a solid, liquid or gel to the compressed portion to form a non-compressed, non-encapsulating portion.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: September 17, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Barry Rowland, Alasdair Duncan McGregor, Michael Crombie Addison, Lynda Anne Speed
  • Patent number: 6444631
    Abstract: A dishwashing product containing a diamine-containing detergent composition specifically for hand dishwashing is disclosed. The container or bottle in which the detergent composition is contained is effectively resistant to UV light, thereby preventing any discoloration of the composition prior to full use of the product by the consumer. Alternatively, the composition itself is UV light resistant.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: September 3, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Kofi Ofosu-Asante, Robert Henry Kordenbrock, Robert Owens
  • Patent number: 6440920
    Abstract: The present invention relates to liquid or gel detergents which provide enhanced cleaning, especially improved stain removal and tough food particle removal on plastics, fabrics, and other substrates. These cleaning compositions comprise a diacyl peroxide bleaching agent.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: August 27, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Kofi Ofosu-Asante, Howard David Hutton
  • Patent number: 6440927
    Abstract: A detergent tablet comprises: (a) a compressed solid body portion having at least one mold in the compressed body portion; and (b) a non-compressed, gelatinous portion integrally mounted in the mold of the compressed body portion, wherein the gelatinous portion comprising a thickening system and at least one detergent active. The thickening system preferably includes a non-aqueous diluent and a gelling agent and the detergent active is preferably selected from the group consisting of enzymes, surfactants, effervescing agents, bleaching agents, silver care agents, builders;, and mixtures thereof.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: August 27, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey Donald Painter, Lynda Anne Speed, Xiaoqing Song, Peter Robert Foley, Sabine Ursula Metzger-Groom
  • Patent number: 6433053
    Abstract: The present invention relates to compositions which modify the surface adhesion properties of a surface such as, tableware, cutting boards and food preparation areas generally.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: August 13, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Chandrika Kasturi, Keith Homer Baker, William Michael Scheper, Peter Yau-Tak Lin, Magda El-Nokaly
  • Patent number: 6420326
    Abstract: The present invention relates to an aqueous, liquid hard surface detergent composition having excellent surface lubricity and filming/streaking characteristics. Said composition comprises less than about 1%, by weight of the composition, of surfactant to provide lubricity, preferably straight chain alkyl sulfate wherein at least about 30%, preferably wherein more than about 50%, of said surfactant, by weight, has a C12 or C14 chain length or mixtures thereof; hydrophobic cleaning solvent; an optional substantive material that increases the hydrophilicity of the glass; and preferred low level of alkaline buffering agent to provide composition stability on storage and alkalinity, without diminishing the lubricity.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: July 16, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Michael Stephen Maile, Alan Edward Sherry
  • Patent number: 6413928
    Abstract: A process for preparing a multi-phase detergent tablet comprising the steps of: a) forming a tablet body by compressing a granular detergent mixture, said tablet body having a first surface, said first surface having at least one mold therein and said granular detergent mixture comprises at least one detergent active agent; b) providing a gelatinous mixture under constant agitation, and delivering said gelatinous mixture to said at least one mold in said tablet body to form a gelatinous portion, said gelatinous mixture comprises at least one detergent active agent; and c) hardening or curing said gelatinous portion to form a multi-phase detergent tablet.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: July 2, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Jeffrey Donald Painter, Joseph Herbert Thien, Christopher James Binder, David John Smith
  • Patent number: 6399564
    Abstract: A detergent tablet comprises a compressed portion and a non-compressed portion wherein the compressed portion comprises a mould and dissolves at a faster rate than the non-compressed portion on a weight by weight basis, measured using the SOTAX dissolution test method, and the non-compressed portion is at least partially retained within the mould.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: June 4, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Lynda Anne Speed, Jeffrey Donald Painter
  • Patent number: 6391845
    Abstract: A detergent tablet comprising a non-compressed, gelatinous portion, wherein the gelatinous portion comprising a thickening system and at least one detergent active. The thickening system preferably includes a non-aqueous diluent and a gelling agent and the detergent active is preferably selected from the group consisting of enzymes, surfactants, effervescing agents, bleaching agents, silver care agents, builders, and mixtures thereof. The non-compressed, gelatinous portion, may contain one, two or a plurality of non-compressed, gelatinous portions, all of which comprise a thickening system and at least one detergent active.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: May 21, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Lynda Anne Speed, Jeffrey Donald Painter, Peter Robert Foley, William Michael Scheper, Mark Robert Sivik
  • Patent number: 6372708
    Abstract: The present invention relates to liquid detergent compositions comprising a polymeric material which is a suds enhancer and a suds volume extender, said compositions having increased effectiveness for preventing re-deposition of grease during hand washing. The polymeric material which are suitable as suds volume and suds endurance enhancers comprise an effective amount of a polymeric suds stabilizer comprise: i) units capable of having a cationic charge at a pH of from about 4 to about 12; provided that said suds stabilizer has an average cationic charge density from about 0.0005 to about 0.05 units per 100 daltons molecular weight at a pH of from about 4 to about 12.
    Type: Grant
    Filed: May 18, 2000
    Date of Patent: April 16, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Chandrika Kasturi, Michael Gayle Schafer, Mark Robert Sivik, Bernard William Kluesener, William Michael Scheper
  • Patent number: 6369011
    Abstract: The present relates to cleaning compositions comprising a protease enzyme which is a carbonyl variant having an amino acid sequence not found in nature, which is derived by replacement of a plurality of amino acid residues of a precursor carbonyl ydrolase with different amino acids.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: April 9, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Saroj Rai, Paul Elliott Correa, Yong Zhu, Thomas Paul Graycar, Richard Ray Bott
  • Patent number: 6362147
    Abstract: Thickened liquid detergent compositions containing low molecular weight organic diamines. More particularly, thickened detergent compositions for hand dishwashing that have improved grease removal performance, benefits in sudsing, improved low temperature stability properties and dissolution properties.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: March 26, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Artemio Castro, Joanna Margaret Clarke, Morven Margaret Davies, Garry Kenneth Embleton, Christopher Lamb
  • Patent number: 6358911
    Abstract: Detergent tablets containing a compressed portion and a non-compressed portion comprising a perfume component. The non-compressed portion preferably dissolves at a faster rate than the compressed portion, which preferably contains a bleaching agent. A process for preparing the detergent tablet is also disclosed.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: March 19, 2002
    Assignee: The Procter & Gamble Company
    Inventor: Sabine Ursula Metzger-Groom