Inventor

FRY SHANDA GARDNER

US2 patents

Patents

2 patents

US6499312B1Dec 31, 2002

Cryogenic rectification system for producing high purity nitrogen

PRAXAIR TECHNOLOGY INC21 citations86

US5829271ANov 3, 1998

Cryogenic rectification system for producing high pressure oxygen

PRAXAIR TECHNOLOGY INC10 citations71