Patents by Inventor Stephen F. Billets

Stephen F. Billets 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).

  • Salt bridge reference electrode
    Patent number: 4235688
    Abstract: A salt bridge reference electrode, immersible in an electrolyte, contains a metal electrode contacting water saturated salt crystals and is configured so both evaporative loss of contained water and diffusion loss of contained salt crystals are minimal. An electrolytically conductive plug, having metallic salt crystals in suspension, within the cell, maintains electrolytic continuity between the water-saturated salt crystals and the surrounding electrolyte while minimizing loss of salt crystals from the saturated water into the surrounding electrolyte by osmosis.
    Type: Grant
    Filed: June 27, 1978
    Date of Patent: November 25, 1980
    Assignee: Pennwalt Corporation
    Inventors: Leon P. Sudrabin, Stephen F. Billets, Van Dyke J. Pollitt, Lubomyr Liszczynsky