Patents by Inventor Maria Petra van Deurzen

Maria Petra van Deurzen 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).

  • Publication number: 20120064602
    Abstract: Described are compositions and methods that involve using bleaching enzymes in dish detergents. In some preferred embodiments, the bleaching enzyme comprises at least one laccase, while in some alternative preferred embodiments, the bleaching enzyme comprises at least one glucose oxidase suitable for use in dish detergents. In some additional preferred embodiments, the dish detergents are machine dish detergents.
    Type: Application
    Filed: May 20, 2010
    Publication date: March 15, 2012
    Inventors: Pieter Augustinus, Maria Petra Van Deurzen, Quinta Mildred Westdijk-Patist
  • Publication number: 20020010121
    Abstract: A bleaching composition for laundry fabrics is provided, comprising:
    Type: Application
    Filed: February 28, 2001
    Publication date: January 24, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Maria Petra Van Deurzen, Ronald Hage, Simon Marinus Veerman
  • Patent number: 6340661
    Abstract: A bleaching composition for laundry fabrics is provided, comprising: a bleach catalyst comprising a ligand which forms a complex with a transition metal, the complex catalysing bleaching of stains in the absence of peroxygen bleach or a peroxy-based or -generating bleach system; and a dye transfer inhibition agent, and wherein the composition is substantially devoid of peroxygen bleach or a peroxy-based or -generating bleach system. The bleaching composition provides effective bleaching performance on fabric stains without unacceptable transfer of dyes between fabrics.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: January 22, 2002
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Maria Petra van Deurzen, Ronald Hage, Simon Marinus Veerman