John McHardy

Dielectric mixture composition sensor with compensation for mixture electrical conductivity 6,057,693
Dielectric mixture composition linear sensor with compensation for electrical conductivity 5,717,339
Measuring magnesium concentrations in molten metal alloys 5,632,881
Time-averaged toxic metals monitor device and method 5,514,593
Real-time toxic metals monitor device and method 5,481,181
Method and apparatus for detecting the position of liquid-liquid interfaces 5,426,976
Electrochemical synapses for artificial neural networks 5,315,162
Non-destructive method for evaluation of printed wiring boards 4,939,469
Electrochemical capacitor 4,766,522