Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Liquid oxygen production

Liquid oxygen production

US Patent 6212904 · Granted Apr 10, 2001

Estimated economic value: $97,000 ⓘ

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Rotary valve2001
Rotary valve for two bed vacuum pressure swing absorption system2000
Helical dry screw expander with sealing gas to the shaft seal system1994
Cryogenic rectification system with helical dry screw expander1993
Turbomachine with seal fluid recovery channel1990
Method and apparatus for cryogenic liquid expansion1990
Bearing support system1990
Process to produce liquid cryogen1988
Integral bearing system1984
Method for forming a porous aluminum layer1982
Enhancement for film condensation apparatus1981