Patents by Inventor Gudrun Hofmann

Gudrun Hofmann 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).

  • Method and device for the preparation of liquid samples in NMR spectroscopy using a combined titration and pH electrode
    Patent number: 8123921
    Abstract: A method and device have an electrode rod (1; 21) for a pH meter. The electrode rod (1; 21) has a measuring end (2; 22) for immersion into a liquid test sample (31), wherein the measuring end (2; 22) has a pH measuring element, and wherein electrical feed lines (5) in the electrode rod (1; 21) extend towards the pH measuring element. A plurality of capillaries (8, 9, 10; 23) for feeding liquids and gas into the test sample (31) extend in the electrode rod (1; 21) and have outlet openings (11, 12, 13; 24) in the area of the measuring end (2; 22). The method and device facilitate and accelerate preparation of liquid test samples and adjustment of a pH value for small amounts of test samples or narrow sample containers in NMR spectroscopy applications.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: February 28, 2012
    Assignee: Bruker BioSpin GmbH
    Inventors: Gudrun Hofmann, Martin Hofmann
  • Method and device for the preparation of liquid samples in NMR spectroscopy using a combined titration and pH electrode
    Publication number: 20100236943
    Abstract: A method and device have an electrode rod (1; 21) for a pH meter. The electrode rod (1; 21) has a measuring end (2; 22) for immersion into a liquid test sample (31), wherein the measuring end (2; 22) has a pH measuring element, and wherein electrical feed lines (5) in the electrode rod (1; 21) extend towards the pH measuring element. A plurality of capillaries (8, 9, 10; 23) for feeding liquids and gas into the test sample (31) extend in the electrode rod (1; 21) and have outlet openings (11, 12, 13; 24) in the area of the measuring end (2; 22). The method and device facilitate and accelerate preparation of liquid test samples and adjustment of a pH value for small amounts of test samples or narrow sample containers in NMR spectroscopy applications.
    Type: Application
    Filed: June 2, 2010
    Publication date: September 23, 2010
    Inventors: Gudrun Hofmann, Martin Hofmann
  • Combined titration and pH electrode for the preparation of liquid samples in particular for NMR spectroscopy
    Publication number: 20070138011
    Abstract: An electrode rod (1;21) for a pH meter, comprising a measuring end (2; 22) for immersion into a liquid test sample (31), wherein the measuring end (2; 22) has a pH measuring element, and wherein electrical feed lines (5) in the electrode rod (1;21) extend towards the pH measuring element, is characterized in that at least one capillary (8, 9, 10; 23) for feeding a liquid into the test sample (31) extends in the electrode rod (1; 21), and the at least one capillary (8, 9, 10; 23) has an outlet opening (11, 12, 13; 24) in the area of the measuring end (2; 22). The inventive electrode rod facilitates and accelerates preparation of liquid test samples, in particular, adjustment of a pH value for small amounts of test samples or narrow sample containers.
    Type: Application
    Filed: December 13, 2006
    Publication date: June 21, 2007
    Applicant: Bruker BioSpin GmbH
    Inventors: Gudrun Hofmann, Martin Hofmann