the fluid being oxygen enriched compared to air

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Patents Grantslast 30 patents

Information Patent Grant
Cryogenic rectification method
- Patent number 8,448,463
- Issue date May 28, 2013
- Praxair Technology, Inc.
- Neil Mark Prosser
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Nitrogen generation process
- Patent number 6,637,240
- Issue date Oct 28, 2003
- Air Products and Chemicals, Inc.
- John Louis Griffiths
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Nitrogen generation process
- Patent number 6,487,877
- Issue date Dec 3, 2002
- Air Products and Chemicals, Inc.
- John Louis Griffiths
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Pump for a cryogenic liquid and pump unit and distillation column w...
- Patent number 6,250,896
- Issue date Jun 26, 2001
- L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Geo...
- Jean Yves Lehman
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
3210948
- Patent number 3,210,948
- Issue date Oct 12, 1965
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
3131045
- Patent number 3,131,045
- Issue date Apr 28, 1964
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...