Patents by Inventor Klaus Rommel

Klaus Rommel 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).

  • Cell for measurement of the electrical conductivity of liquids
    Patent number: 4015199
    Abstract: A cell for the measurement of electrical conductivity of liquids by the principle of the four electrode measuring technique in which two current electrodes are spaced from one another and voltage electrodes provide a voltage tap-off. The voltage electrodes include at least two voltage electrodes associated with each current electrode and electrically connected in parallel. The at least two voltage electrodes are disposed along an equipotential line around a current electrode at positions on the equipotential line which exhibit low current density.
    Type: Grant
    Filed: October 29, 1975
    Date of Patent: March 29, 1977
    Assignee: Zellweger, Ltd.
    Inventor: Klaus Rommel