Patents by Inventor John E. Heider

John E. Heider 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).

  • Solid state reference electrode
    Patent number: 4908117
    Abstract: A solid state reference electrode comprising a metal/metal salt electrode, an immobilized electrolyte in contact with the metal salt, and a perfluorocarbon copolymer coating on the immobilized electrolyte to prevent migration of the electrolyte away from the electrode.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: March 13, 1990
    Assignee: Monsanto Company
    Inventors: Patrick J. Kinlen, John E. Heider
  • Solid state indicator electrode and method of making same
    Patent number: 4818365
    Abstract: A junction-type metal/metal oxide solid state indicator electrode wherein the sensing portion of the electrode is coated with a perfluorocarbon copolymer, and a pH sensor made of the indicator electrode and a reference electrode.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: April 4, 1989
    Assignee: Monsanto Company
    Inventors: Patrick J. Kinlen, John E. Heider