1
James D Blair, Kenneth Dircks: Method and apparatus for monitoring fuel cell performance. Minister of National Defence of Her Majesty s Canadian Government, McAndrews Held & Malloy, December 8, 1992: US05170124 (264 worldwide citation)

A method and apparatus for monitoring the performance of fuel cells arranged in series. More particularly, the method and apparatus involve the measurement and comparison of fuel cell performance indicators, such as voltage, in groups of cells connected in series. In a first embodiment, the voltage ...


2
Robert D Merritt, James D Blair: Constant voltage fuel cell with improved reactant supply and control system. Ballard Power Systems, McAndrews Held & Malloy, November 22, 1994: US05366821 (112 worldwide citation)

A method and apparatus for providing a substantially constant output voltage from a fuel cell, notwithstanding output current variations, is disclosed. The voltage and secondarily the current of the cell is determined at least periodically. The pressure of the reactant gas in the fuel cell is then r ...