Inventor
CHENG ALAN TAT-YAN
US17 patents
Patents
17 patentsUS6273402B1Aug 14, 2001
Submersible in-situ oxygenator
PRAXAIR TECHNOLOGY INC71 citations96
US5939313AAug 17, 1999
Stationary vortex system for direct injection of supplemental reactor oxygen
PRAXAIR TECHNOLOGY INC85 citations96
US7048262B2May 23, 2006
Method and apparatus for injecting oxygen into fermentation processes
PRAXAIR TECHNOLOGY INC15 citations92
US5985652ANov 16, 1999
Gas driven fermentation system
PRAXAIR TECHNOLOGY INC20 citations92
US5943869AAug 31, 1999
Cryogenic cooling of exothermic reactor
PRAXAIR TECHNOLOGY INC42 citations90
US5937656AAug 17, 1999
Nonfreezing heat exchanger
PRAXAIR TECHNOLOGY INC23 citations90
US5701745ADec 30, 1997
Cryogenic cold shelf
PRAXAIR TECHNOLOGY INC21 citations90
US6250609B1Jun 26, 2001
Method of making supersaturated oxygenated liquid
PRAXAIR TECHNOLOGY INC49 citations87
US6145815ANov 14, 2000
System for enhanced gas dissolution having a hood positioned over the impeller with segregating rings
PRAXAIR TECHNOLOGY INC37 citations87
US6220048B1Apr 24, 2001
Freeze drying with reduced cryogen consumption
PRAXAIR TECHNOLOGY INC24 citations86
US6622496B2Sep 23, 2003
External loop nonfreezing heat exchanger
PRAXAIR TECHNOLOGY INC16 citations82
US7279319B2Oct 9, 2007
Method and apparatus for injecting oxygen into fermentation processes
PRAXAIR TECHNOLOGY INC6 citations73
US6280996B1Aug 28, 2001
Method of using oxygen to eliminate carbon dioxide poisoning in aerobic fermentation
PRAXAIR TECHNOLOGY INC8 citations73
US5798254AAug 25, 1998
Gas driven fermentation method using two oxygen-containing gases
PRAXAIR TECHNOLOGY INC14 citations73
US5802858ASep 8, 1998
Cryogenic cooling tower
PRAXAIR TECHNOLOGY INC7 citations71
US5763544AJun 9, 1998
Cryogenic cooling of exothermic reactor
PRAXAIR TECHNOLOGY INC11 citations71
US5737926AApr 14, 1998
Cryogenic sterile nitrogen system
PRAXAIR TECHNOLOGY INC5 citations62