Inventor
FREEMAN NORMAN A
4 patents
⚠️ This page may combine multiple inventors who share the name “FREEMAN NORMAN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HYDROGENICS CORP
3 patentsUS6519539B1Feb 11, 2003
Measurement of fuel cell impedance
HYDROGENICS CORP57 citations94
US6816797B2Nov 9, 2004
System and method for measuring fuel cell voltage and high frequency resistance
HYDROGENICS CORP28 citations90
US7148654B2Dec 12, 2006
Method and apparatus for monitoring fuel cell voltages
HYDROGENICS CORP8 citations71