Patents by Inventor Nour-Eddine Guedira

Nour-Eddine Guedira 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).

  • Detergent compositions having a specific hydrophobic peroxyacid bleaching system and anionic surfactant
    Patent number: 6689732
    Abstract: Granular detergent compositions, particularly phosphate-containing detergent compositions, contain a specific hydrophobic peroxyacid bleaching system and a specific anionic surfactant system. The compositions are suitable for use in laundry washing methods.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: February 10, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Nour-Eddine Guedira, Dawn Constance Ward
  • Bleaching compositions
    Patent number: 6444634
    Abstract: Granular detergent compositions and in particular low density, phosphate containing detergent compositions comprise a specific bleaching system containing hydrophobic peracid bleach and hydrophilic peracid bleach and a peroxide source. These detergent compositions have specific low levels of available oxygen from hydrophobic aid hydrophilic peroxyacid bleach, specific ratios of available oxygen from the hydrophobic peracid bleach to the hydrophilic peracid bleach and specific ratios of available oxygen of the peroxide source to the available oxygen of the peracids. These specific mixed bleach systems are useful for sanitization or reduction of bacterial activity.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: September 3, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Susan Judith Mason, Ludivine Pascale Grippay, Nour-Eddine Guedira, Donald Ray Brown, Michelle Frances Mellea
  • Detergent composition containing combination of nonionic polysaccharide ether with synthetic oxyalkylene-containing soil release agent
    Patent number: 5948744
    Abstract: Detergent compositions comprise, by weight, from 0.01% to 10% of a nonionic polysaccharide ether having a degree of polymerization of at least 100, and from 0.01% to 5% of a soil release agent. The soil release agent comprises at least one oxyalkylene unit and at least one terephthalate or substituted terephthalate unit and has a molecular weight of less than 10,000. The detergent composition comprises the polysaccharide ether and the soil release agent in a weight ratio of from 0.1:1 to 20:1.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: September 7, 1999
    Inventors: Gerard Marcel Baillely, Nour-Eddine Guedira, Robin Gibson Hall
  • Detergent composition comprising cellulase enzyme and nonionic cellulose ether
    Patent number: 5919271
    Abstract: The invention relates to a detergent composition which comprises a nonionic polysaccharide ether, a surfactant, a dye transfer inhibition agent, a cellulase enzyme and a chelating agents. In addition the invention further relates to a method of treating fabrics with the detergent composition.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: July 6, 1999
    Assignee: Procter & Gamble Company
    Inventors: Gerard Marcel Baillely, Robin Gibson Hall, Nour-Eddine Guedira
  • Detergent composition comprising an amylase enzyme and a nonionic polysaccharide ether
    Patent number: 5851235
    Abstract: The present invention relates to a detergent composition comprising an amylase enzyme in combination with a nonionic polysaccharide ether for improved stain removal performance.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: December 22, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Gerard Marcel Baillely, Nour-Eddine Guedira, Robin Gibson Hall
  • Quaternary substituted bleach activators
    Patent number: 5686015
    Abstract: Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising particular quaternary-substituted bleach activators, are provided. More specifically, the invention relates to compositions which provide enhanced cleaning/bleaching benefits though the selection of quaternary-substituted bleach activators having specific leaving groups with a conjugate acid pKa above 13 and with specific ratios of the rate of perhydrolysis to the rate of hydrolysis and the rate of perhydrolysis to the rate of diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: November 11, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Alan David Willey, Gregory Scot Miracle, Kevin Lee Kott, Michael Eugene Burns, Gerard Marcel Abel Baillely, Nour-Eddine Guedira, Frederick Edward Hardy, Lucille Florence Taylor, Mark Robert Sivik