Inventor
FITZGERALD RICHARD C
US5 patents
Patents
5 patentsUS6694774B1Feb 24, 2004
Gas liquefaction method using natural gas and mixed gas refrigeration
PRAXAIR TECHNOLOGY INC82 citations96
US7263841B1Sep 4, 2007
Superconducting magnet system with supplementary heat pipe refrigeration
PRAXAIR TECHNOLOGY INC18 citations83
US6938426B1Sep 6, 2005
Cryocooler system with frequency modulating mechanical resonator
PRAXAIR TECHNOLOGY INC17 citations80
US7143587B2Dec 5, 2006
Low frequency pulse tube system with oil-free drive
PRAXAIR TECHNOLOGY INC5 citations62
US7228686B2Jun 12, 2007
Cryogenic refrigeration system for superconducting devices
PRAXAIR TECHNOLOGY INC4 citations58