Patents by Inventor Allan Campbell McRitchie

Allan Campbell McRitchie 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: 8278230
    Abstract: The present application relates to perfume systems and consumer products comprising new perfumes and/or such perfume systems, as well as processes for making and using such perfume systems and consumer products.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: October 2, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Johan Smets, David Thomas Stanton, Rafael Trujillo Rosaldo, Allan Campbell McRitchie, Hugo Robert Germain Denutte, Thierry Granier, Andreas Hanhart, Jerzy A. Bajgrowicz, Philip Kraft
  • Patent number: 7569528
    Abstract: Detergent compositions comprising high efficiency lipase enzymes and particles comprising encapsulated perfumes. Preferred perfumes have a boiling point at 760 mm Hg, of 260° C. or lower and a calculated CLogP of at least 3.0. The encapsulated perfume particles are useful in laundry compositions in order to provide efficacious perfume delivery at all stages of the wash, particularly during the laundering stage.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: August 4, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Neil Joseph Lant, Allan Campbell McRitchie, Jonathan Richard Clare, Philip Frank Souter, Javier Medina, Zaiyou Liu
  • Patent number: 7084102
    Abstract: A perfumed detergent tablet comprises a clay mineral compound and a heavy metal ion sequestrant. The clay mineral helps disperse the tablet in aqueous media and acts as a fabric softener for laundered fabrics. The perfume is free of Schiff bases, such as those formed from anthranilates and aldehydes, which can discolor the clay.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: August 1, 2006
    Assignee: The Procter & Gamble Company
    Inventors: José Arnau, Philip Andrew Cunningham, Michael Green, Allan Campbell McRitchie
  • Patent number: 6916769
    Abstract: The present invention relates to a solid particulate fabric-treatment composition comprising: (a) a first perfume component comprising a pro-perfume compound that is the product of a reaction between an amino-functional compound comprising at least one primary and/or secondary amine group and an amine-reactive perfume molecule comprising a ketone and/or an aldehyde functionality; and (b) a second perfume component comprising: (i) at least 30% by weight of the second perfume component of volatile perfume molecules having: (i) a boiling point of less than 250° C.; and (ii) a clogP value of greater than 2; and (iii) an odour detection threshold of less than 50 parts per billion; and (ii) less than 35% by weight of the second perfume component of non-volatile perfume molecules having: (i) a boiling point of greater than 250° C.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 12, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Allan Campbell McRitchie, Michael Green, Jonathan Richard Clare
  • Patent number: 6869923
    Abstract: The present invention relates to a perfume composition for delivery of high impact accord perfume ingredients, encapsulated embodiments of such compositions and their use in laundry and cleaning applications.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: March 22, 2005
    Assignee: Procter & Gamble Company
    Inventors: Philip Andrew Cunningham, Michael Green, Allan Campbell McRitchie
  • Patent number: 6630438
    Abstract: The present invention relates to a perfumed detergent tablet, the tablet comprising a clay mineral compound, and the perfume comprising less than 0.6% of Schiff-base by weight of the perfume composition.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: October 7, 2003
    Assignee: The Procter & Gamble Company
    Inventors: José Arnau, Philip Andrew Cunningham, Michael Green, Allan Campbell McRitchie
  • Publication number: 20030153473
    Abstract: The present invention relates to a solid particulate fabric-treatment composition comprising:
    Type: Application
    Filed: December 3, 2002
    Publication date: August 14, 2003
    Inventors: Allan Campbell McRitchie, Michael Green, Jonathan Richard Clare
  • Patent number: 6017865
    Abstract: The present invention relates to detergent compositions comprising: a) a hydrophobic bleaching system selected from i) hydrogen peroxide or a source thereof in amount of from 0.1% to 60% by weight and combined with a hydrophobic peroxyacid bleach precursor in amount of from 0.1% to 60% by weight, ii) a preformed hydrophobic peroxyacid in amount of from 0.1% to 60% by weight, and iii) mixtures of i) and ii), wherein a hydrophobic peroxyacid bleach precursor is defined as a compound which produces under perhydrolysis a hydrophobic peroxyacid whose parent carboxylic acid has a critical micelle concentration less than 0.5 moles/liter measured in aqueous solution at 25.degree. C. and pH 7, and wherein a hydrophobic preformed peroxyacid is defined as a compound whose parent carboxylic acid has a critical micelle concentration less than 0.5 moles/liter measured in aqueous solution at 25.degree. C. and pH 7; b) up to 5% by weight of a perfume composition; and c) at least 0.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: January 25, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Richard Timothy Hartshorn, Youssef Oubrahim, Allan Campbell McRitchie, Christiaan Arthur Jacques Kamiel Thoen