Patents by Inventor Glenn Wehrmann

Glenn Wehrmann 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).

  • Reference electrode solution containing organic ammonium and phosphonium salts for potentiometric measurement of pH
    Patent number: 6221222
    Abstract: The present invention provides a reference electrode solution containing ammonium salts and phosphonium salts for the potentiometric measurement of pH and method of using the same. The use of the ammonium salts and the phosphonium salts to replace potassium chloride or sodium chloride as reference electrolytes in a standard reference electrode minimizes the formation of precipitates in sample solutions containing cation-sensitive compounds. Disruption of ion flow through the reference electrode is eliminated, and accurate pH measurements may be obtained in solutions that contain compounds having a strong affinity for hard cations.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: April 24, 2001
    Assignee: Baxter International Inc.
    Inventors: James Kipp, Glenn Wehrmann, Richard Hammond, Christine Rebbeck