Patents by Inventor Sofia S. Christakos

Sofia S. Christakos 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: 11634671
    Abstract: A structured liquid detergent composition includes water, an anionic detergent surfactant, and a nonionic detergent surfactant. A ratio of the anionic detergent surfactant to the nonionic detergent surfactant is from about 0.5 to about 20. The structured liquid detergent composition further includes a zwitterionic or amphoteric surfactant and a bacterial-derived cellulose network. The structured liquid detergent composition exhibits improved rheological properties.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: April 25, 2023
    Assignee: Henkel AG & Co. KGaA
    Inventors: Wei Sun, Janet Coope-Epstein, Sofia S. Christakos
  • Patent number: 10947482
    Abstract: A structured detergent composition has a yield stress point and includes a surfactant component present in an amount of from about 5 to about 50 weight percent actives, water present in a total amount of from about 40 to about 90 weight percent, and a smectite clay present in an amount of from about 0.2 to about 3 weight percent actives, each based on a total weight of the composition. The composition is formed by combining water and a smectite clay to form a mixture, applying shear to the mixture, combining the sheared mixture with an acidic surfactant, adding an acid to the combination of the sheared mixture and the acidic surfactant, then adding a base and a buffer. The method also includes the step of adding additional surfactants, wherein the combination of the acidic surfactant and the additional surfactants make up the surfactant component.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: March 16, 2021
    Assignee: Henkel IP & Holding GmbH
    Inventors: Sofia S. Christakos, Calogero A. Distefano, Michelle A. Piombino
  • Publication number: 20210062118
    Abstract: A structured liquid detergent composition includes water, an anionic detergent surfactant, and a nonionic detergent surfactant. A ratio of the anionic detergent surfactant to the nonionic detergent surfactant is from about 0.5 to about 20. The structured liquid detergent composition further includes a zwitterionic or amphoteric surfactant and a bacterial-derived cellulose network. The structured liquid detergent composition exhibits improved rheological properties.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 4, 2021
    Inventors: Wei Sun, Janet Coope-Epstein, Sofia S. Christakos
  • Publication number: 20210062111
    Abstract: A structured detergent composition has a yield stress point and includes a surfactant component present in an amount of from about 5 to about 50 weight percent actives, water present in a total amount of from about 40 to about 90 weight percent, and a smectite clay present in an amount of from about 0.2 to about 3 weight percent actives, each based on a total weight of the composition. The composition is formed by combining water and a smectite clay to form a mixture, applying shear to the mixture, combining the sheared mixture with an acidic surfactant, adding an acid to the combination of the sheared mixture and the acidic surfactant, then adding a base and a buffer. The method also includes the step of adding additional surfactants, wherein the combination of the acidic surfactant and the additional surfactants make up the surfactant component.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 4, 2021
    Inventors: Sofia S. Christakos, Calogero A. Distefano, Michelle A. Piombino