Patents by Inventor Malcolm A. Fullenwider

Malcolm A. Fullenwider 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 and apparatus for measuring hydrogen ion concentration and activity in an electrolyte
    Patent number: 5081420
    Abstract: A pH-measuring system using a Barnacle electrode (e.g. Ni--NiO.sub.2) in an electrolyte to abstract hydrogen from a metal electrode in the same electrolyte, and produces data as to the time t.sub.max required for the current density at the exposed surface of the metal electrode to reach its maximum value j.sub.max after an external circuit between the two electrodes is closed. From t.sub.max and j.sub.max the pH in the bulk of the electrolytes is determined, for display or for control purposes.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: January 14, 1992
    Inventor: Malcolm A. Fullenwider
  • Hydrogen-oxidizing catalyst, and fuel cell electrode using same
    Patent number: 4031291
    Abstract: A hydrogen-oxidizing catalyst, comprising a body of yttrium coated with a thin surface layer of copper or platinum. The catalyst is preferably in powder form, and is especially useful as the catalyst at the hydrogen electrode of a fuel cell. The copper-yttrium combination shows better catalytic activity than shiny platinum in terms of current density for a given anode voltage, and the platinum-yttrium combination is even better, although more expensive than the Cu-Y combination.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: June 21, 1977
    Assignees: Malcolm A. Fullenwider, Richard L. Ament, II
    Inventor: Malcolm A. Fullenwider