Patents by Inventor Stefan Frenzel

Stefan Frenzel 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).

  • Perfume polymeric particles
    Publication number: 20040110648
    Abstract: Perfume polymeric particles, polymeric particles having affinities for certain perfume raw materials, compositions containing them and methods for making the same are provided.
    Type: Application
    Filed: October 28, 2003
    Publication date: June 10, 2004
    Inventors: Glenn Thomas Jordan, Bernard William Kluesener, Mark Robert Sivik, Vicente Santamarina, Robert Richard Dykstra, Natalia N.L. Lebedev, Lois Sara Gallon, Ellen Schmidt Baker, Patrick Amrhein, Dieter Boeckh, Stefan Frenzel, Ekkehard Jahns, Volker Schwendemann
  • Use of hydrophilic graft copolymers containing n-vinylamine and/or open-chain n-vinylamide units in comsmetic formulations
    Publication number: 20030199642
    Abstract: The invention relates to the use of graft copolymers obtained by radical graft copolymerisation of a) at least one open-chained N-vinylamide compound of general formula (I) wherein R1, R2, R3 represents H or C1-C6-alkyl and b) optionally, one or several other copolymerizeable monomers on a polymergraft base c) for cosmetic applications, with the proviso that if the polymer graft base is compound containing polyether, the copolymerizeable polymer b) does not represent vinylester.
    Type: Application
    Filed: February 20, 2003
    Publication date: October 23, 2003
    Inventors: Tanja Schneider, Michael Gotsche, Anton Negele, Son Nguyen Kim, Stefan Frenzel, Claudia Wood
  • Laundry articles
    Publication number: 20030139320
    Abstract: Laundry articles comprise a water-insoluble substrate and a particulate soil absorber comprising a crosslinked polyamide including units having a nucleophilic group. The particulate soil absorber is adhered to the water-insoluble substrate and is effective for inhibiting transfer or redeposition of particulate soil to items in a wash solution. Methods for making such articles comprise adhering a particulate soil absorber comprising a crosslinked polyamide including units having a nucleophilic group to the water-insoluble substrate.
    Type: Application
    Filed: January 16, 2003
    Publication date: July 24, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Kemal V. Catalan, Nicholas David Vetter, Rajan Keshav Panandiker, Yousef Georges Aouad, Dieter Boeckh, Stefan Frenzel, Cordula Mock-Knoblauch
  • Method for producing water-soluble polymers, comprising oligoalkylene-imine side chains
    Patent number: 6562926
    Abstract: The invention relates to a method for producing water-soluble homopolymers and copolymers, comprising oligoalkylene-imine side chains of the general formula (I), wherein [AI]m, m, Y and x have the definitions given in claim 1, by radical homopolymerisation or copolymerisation of monomers A of the general formula (II), wherein [AI]m, m, n, Y and R have the definitions given in claim 1, in an aqueous reaction medium. The invention also relates to the homopolymers and copolymers obtained by this method and to their use as auxiliary agents in paper production.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: May 13, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Jürgen Decker, Stefan Frenzel, Martin Rübenacker, Hubert Meixner