Patents by Inventor Andrea Dornauf

Andrea Dornauf 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).

  • Cartridge-shaped reference element for pontentiometric measuring systems
    Patent number: 5432453
    Abstract: A cartridge-shaped reference element for potentiometric measuring systems exhibits a hollow body (20) as well as first and second sealed ends (30, 40) and a chamber (60). A silver electrode is provided as at least partial coating (50) of the inner surface of hollow body (20) bordering chamber (60), and coating (50) and protruding from chamber (60) so that a potential relating to the reference element can be measured.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: July 11, 1995
    Assignee: Schott-Gerate GmbH
    Inventors: Andrea Dornauf, Werner Gehringer, Gunter Tauber
  • Reference electrode having immobilized electrolyte
    Patent number: 4927518
    Abstract: A reference electrode which makes use of an electrolyte which is immobilized by mixing it with an hydraulically setting inorganic material. The hydraulically setting materials that can be used are plaster of Paris, cement or mixtures thereof which can be mixed with aggregates commonly used in cements. The electrodes are characterized by ease of manufacture and stability with regard to high pressure and temperature changes.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: May 22, 1990
    Assignee: Schott Glaswerke
    Inventors: Gunter Tauber, Andrea Dornauf