Patents by Inventor Liesbet Maria Cornelia De Troch

Liesbet Maria Cornelia De Troch 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).

  • Water-soluble, liquid-containing pouch
    Patent number: 7563757
    Abstract: The present invention relates to water-soluble pouch which contains a liquid detergent composition, wherein the pouch is a water-soluble film, the film material comprising a polyvinyl alcohol, and wherein the liquid detergent composition also comprises a plasticizer, wherein the plasticizer is selected from the group consisting of glycerol, ethylene glycol, diethylene glycol, triethylene glycol, 2-methyl-1,3-propane diol, sorbitol, methanol, diglycerol, 1,4-butane diol, urea and mixtures thereof, and wherein the liquid detergent composition further comprises a viscosity modifier, preferably a hydrogenated castor oil.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: July 21, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Stylianos Kouvroukoglou, Liesbet Maria Cornelia De Troch, Mark William Ridyard