Patents by Inventor Norbert Gebhardt

Norbert Gebhardt 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).

  • Stabilisation of aqueous solutions of homopolymers and copolymers of N-vinylpyrrolidones
    Patent number: 7666935
    Abstract: Aqueous solutions comprising: one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof; and hydrogen peroxide; wherein the hydrogen peroxide is present in an amount of 100 to 5000 ppm; and methods of stabilizing aqueous solutions containing one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: February 23, 2010
    Assignee: BASF SE
    Inventors: Erik Bohrer, Dieter Faul, Ivette Garcia Castro, Norbert Gebhardt, Peter Hössel, Peter Mendera, Olga Pinneker, Bernd de Potzolli, Stefan Stein, Karl-Hermann Strube, Ralf Widmaier, Josef Neutzner, Simone Lehnert
  • Stabilisation of Aqueous Solutions of Homopolymers and Copolymers of N-Vinylpyrrolidones
    Publication number: 20080033091
    Abstract: Aqueous solutions comprising: one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof; and hydrogen peroxide; wherein the hydrogen peroxide is present in an amount of 100 to 5000 ppm; and methods of stabilizing aqueous solutions containing one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof.
    Type: Application
    Filed: October 6, 2005
    Publication date: February 7, 2008
    Applicant: BASF Aktiengesellschaft
    Inventors: Erik Bohrer, Dieter Faul, Ivette Castro, Norbert Gebhardt, Peter Hossel, Peter Mendera, Olga Pinneker, Bernd de Potzolli, Stefan Stein, Karl-Hermann Strube, Ralf Widmaier, Josef Neutzner, Simone Lehnert
  • Magnetic resonance apparatus and carrier device equipable with shim elements
    Patent number: 6867592
    Abstract: A magnetic resonance apparatus has a receptacle space for the acceptance of at least one carrier device equipable with shim elements and at least one hollow member for conducting a coolant that cools the shim elements, a carrier device equipable with shim elements is designed forming at least one hollow member for conducting a coolant that cools the shim elements.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: March 15, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Matthias Gebhardt, Norbert Gebhardt, Johann Schuster
  • Magnetic resonance apparatus and carrier device equipable with shim elements
    Publication number: 20030206018
    Abstract: A magnetic resonance apparatus has a receptacle space for the acceptance of at least one carrier device equipable with shim elements and at least one hollow member for conducting a coolant that cools the shim elements, a carrier device equipable with shim elements is designed forming at least one hollow member for conducting a coolant that cools the shim elements.
    Type: Application
    Filed: April 29, 2003
    Publication date: November 6, 2003
    Applicant: Siemens Aktiengesellschaft
    Inventors: Matthias Gebhardt, Norbert Gebhardt, Johann Schuster
  • Use of polymers as biocides
    Patent number: 6261581
    Abstract: Use of polymers which contain (a) 0.1 to 100 mol % of vinylamine units or ethyleneimine units, (b) 0 to 99.9 mol % of units of at least one monomer from the group consisting of open-chain N-vinylcarboxamides, vinyl formate, vinyl acetate, vinyl propionate, vinyl alcohol, C1- to C6-alkyl vinyl ethers, monoethylenically unsaturated C3- to C8-carboxylic acids, their esters, nitriles, amides and anhydrides, N-vinylurea, N-vinylimidazoles and N-vinylimidazolines and (c) 0 to 5 mol % of units of monomers having at least two ethylenically unsaturated double bonds, in copolymerized form, the sum of (a), (b) and (c) in mol % always being 100, as biocide.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: July 17, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Gebhardt, Dieter Zeller, Claudia Nilz, Ulrich Steuerle, Charlotte Johansen