Patents by Inventor Maria Petra J van DEURZEN

Maria Petra J 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).

  • Patent number: 9453191
    Abstract: The present invention relates to a pourable thixotropic detergent composition comprising a continuous phase and at least 0.3 wt. % of suspended particles comprising water-soluble surfactant, said continuous phase containing at least 10 wt. % of an aminocarboxylate chelant and at least 10 wt. % of water and said water-soluble surfactant being selected from aryl sulfonate surfactant, alkyl sulfate surfactant and combinations thereof. The pourable detergent composition offers the advantage that it does not exhibit significant demixing during storage.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: September 27, 2016
    Assignee: Conopco, Inc.
    Inventors: Maria Petra J van Deurzen, Robert Jan Moll
  • Publication number: 20160152927
    Abstract: One aspect of the invention relates to a composition containing at least 10 wt. % of GLDA, at least 10 wt. % water and one or more active enzymes; wherein the weight ratio of GLDA to water lies within the range of 5:6 to 5:1, preferably of 9:10 to 3:1; more preferably of 1:1 to 5:2. The composition of the present invention offers the advantage that the enzyme retains it activity despite the fact that the aqueous composition contains a high amount of GLDA relative to the water content of the composition, even if this GLDA was incorporated in the form of the highly alkaline tetrasodium salt The invention also provides a process of preparing such a composition.
    Type: Application
    Filed: June 16, 2014
    Publication date: June 2, 2016
    Inventors: Maria Petra J van DEURZEN, Robert Jan MOLL
  • Publication number: 20160130534
    Abstract: The present invention relates to a pourable thixotropic detergent composition comprising a continuous phase and at least 0.3 wt. % of suspended particles comprising water-soluble surfactant, said continuous phase containing at least 10 wt. % of an aminocarboxylate chelant and at least 10 wt. % of water and said water-soluble surfactant being selected from aryl sulfonate surfactant, alkyl sulfate surfactant and combinations thereof. The pourable detergent composition offers the advantage that it does not exhibit significant demixing during storage.
    Type: Application
    Filed: May 28, 2014
    Publication date: May 12, 2016
    Applicant: Conopco, Inc., d/b/a UNILEVER
    Inventors: Maria Petra J van DEURZEN, Robert Jan MOLL