Patents by Inventor Robert D. Jurenko

Robert D. Jurenko 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 for testing ion selective electrodes in continuous measuring systems
    Patent number: 4189367
    Abstract: The membrane of an ion selective electrode is tested for damage while it is being used for continuous measurement by sending a test current through the electrode system and measuring the voltage change produced. If the voltage change does not reach the value expected with an intact high resistance electrode, a defective electrode is indicated. A reverse current of the same magnitude and duration is then sent through the electrode system.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: February 19, 1980
    Assignee: Leeds & Northrup Company
    Inventors: James G. Connery, Robert D. Jurenko, Earl W. Shaffer, Jr.