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Class Information
Number: 128/201.21
Name: Surgery > Respiratory method or device > Using liquified oxygen
Description: Subject matter using liquified oxygen, usually as a source of gas for breathing.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7431032 |
Low power ambulatory oxygen concentrator |
Oct. 7, 2008 |
| 7318327 |
Liquefying and storing a gas |
Jan. 15, 2008 |
| 7296569 |
Portable liquid oxygen unit with multiple operational orientations |
Nov. 20, 2007 |
| 7213400 |
Liquefying and storing a gas |
May. 8, 2007 |
| 7171963 |
Product pump for an oxygen concentrator |
Feb. 6, 2007 |
| 7165422 |
Small-scale gas liquefier |
Jan. 23, 2007 |
| 7165546 |
Nitrous oxide based oxygen supply system |
Jan. 23, 2007 |
| 7121276 |
Personal oxygen concentrator |
Oct. 17, 2006 |
| 7063085 |
Gas delivery and monitoring system |
Jun. 20, 2006 |
| 6910510 |
Portable, cryogenic gas delivery apparatus |
Jun. 28, 2005 |
| 6843247 |
Portable liquid oxygen unit with multiple operational orientations |
Jan. 18, 2005 |
| 6742517 |
High efficiency liquid oxygen system |
Jun. 1, 2004 |
| 6698423 |
Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator |
Mar. 2, 2004 |
| 6681764 |
Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator |
Jan. 27, 2004 |
| 6651653 |
Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator |
Nov. 25, 2003 |
| 6575159 |
Portable liquid oxygen unit with multiple operational orientations |
Jun. 10, 2003 |
| 6520176 |
Portable oxygen concentrator |
Feb. 18, 2003 |
| 6513521 |
Cryogenic mixed gas single phase storage and delivery |
Feb. 4, 2003 |
| 6347627 |
Nitrous oxide based oxygen supply system |
Feb. 19, 2002 |
| 6138670 |
Process and installation for underwater diving employing a breathing mixture containing hydrogen |
Oct. 31, 2000 |
| 6112744 |
Therapeutic system for respiratory care with a liquid and gas with an oscillator device for promoting exchange between the gas and liquid |
Sep. 5, 2000 |
| 6089226 |
Self contained, cryogenic mixed gas single phase storage and delivery |
Jul. 18, 2000 |
| 6085743 |
Polarized gas delivery system/method |
Jul. 11, 2000 |
| 6012453 |
Apparatus for withdrawal of liquid from a container and method |
Jan. 11, 2000 |
| RE36460 |
Method of providing circulation via lung expansion and deflation |
Dec. 21, 1999 |
| 5979440 |
Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator |
Nov. 9, 1999 |
| 5709203 |
Self contained, cryogenic mixed gas single phase storage and delivery system and method for body cooling, gas conditioning and utilization |
Jan. 20, 1998 |
| 5689968 |
Apparatus for providing a conditioned airflow inside a microenvironment and method |
Nov. 25, 1997 |
| 5678536 |
Liquid air mixing system |
Oct. 21, 1997 |
| 5653685 |
Method of providing circulation via lung expansion and deflation |
Aug. 5, 1997 |
| 5572880 |
Apparatus for providing a conditioned airflow inside a microenvironment and method |
Nov. 12, 1996 |
| 5558139 |
Liquid oxygen system |
Sep. 24, 1996 |
| 5511542 |
Lox breathing system with gas permeable-liquid impermeable heat exchange and delivery hose |
Apr. 30, 1996 |
| 5499623 |
Gas mask and breathing equipment with liquefied respiration gas |
Mar. 19, 1996 |
| 5492109 |
Liquid ventilator with venturi-inducing patient connector |
Feb. 20, 1996 |
| 5421326 |
Heat resistant suit with active cooling system |
Jun. 6, 1995 |
| 5339806 |
Protective equipment including a closed suit |
Aug. 23, 1994 |
| 4541276 |
Contents gage |
Sep. 17, 1985 |
| 4211086 |
Cryogenic breathing system |
Jul. 8, 1980 |
| 4206753 |
Method and apparatus for mixing gases |
Jun. 10, 1980 |
| 4181126 |
Cryogenic, underwater-breathing apparatus |
Jan. 1, 1980 |
| 3941124 |
Recirculating breathing apparatus and method |
Mar. 2, 1976 |
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