Patent |
Priority |
Assignee |
Title |
3768468, |
|
|
|
4302224, |
Oct 12 1979 |
JOHN BUNN COMPANY, THE |
Compact oxygen concentrator |
4331455, |
May 11 1979 |
Osaka Oxygen Industries, Ltd. |
Method of producing oxygen rich gas utilizing an oxygen concentrator having good start-up characteristics |
4342573, |
Oct 12 1979 |
JOHN BUNN COMPANY, THE |
Compact oxygen concentrator |
4519387, |
Dec 03 1982 |
Sunrise Medical HHG Inc |
Respirating gas supply method and apparatus therefor |
4612928, |
Aug 28 1984 |
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Method and apparatus for supplying a gas to a body |
4630482, |
Jun 17 1985 |
TELEDYNE MONITOR LABS, INC |
Method and apparatus for ultrasonic measurements of a medium |
4681099, |
Nov 30 1984 |
Respironics, Inc |
Breath-synchronized concentrated-oxygen supplier |
4813979, |
Feb 02 1988 |
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Secondary oxygen purifier for molecular sieve oxygen concentrator |
4857086, |
Oct 17 1987 |
Hitachi Ltd |
Gas separator system |
4859217, |
Jun 30 1987 |
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4892566, |
Mar 22 1989 |
AirSep Corporation |
Pressure swing adsorption process and system |
4925464, |
Nov 17 1988 |
Teijin Limited |
Fluid flow switching valve assembly and system |
4938066, |
Jan 29 1988 |
Xecutek Corporation |
Ultrasonic apparatus for measuring the speed of sound in a gaseous medium |
4968329, |
Oct 26 1987 |
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Pressure swing adsorption for concentration of a gas component |
4971609, |
Feb 05 1990 |
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Portable oxygen concentrator |
4973339, |
Oct 18 1989 |
AirSep Corporation |
Pressure swing absorption process and system for gas separation |
5004485, |
Apr 03 1989 |
Normalair-Garrett (Holdings) Ltd. |
Molecular sieve-type gas separation systems |
5024219, |
Jan 12 1987 |
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Apparatus for inhalation therapy using triggered dose oxygenator employing an optoelectronic inhalation sensor |
5048515, |
Nov 15 1988 |
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Respiratory gas supply apparatus and method |
5060506, |
Oct 23 1989 |
RIC Investments, LLC |
Method and apparatus for monitoring the content of binary gas mixtures |
5060514, |
Nov 30 1989 |
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Sep 28 1990 |
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5108467, |
Sep 08 1988 |
Bergwerksverband GmbH |
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5129924, |
Dec 29 1989 |
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Supplemental oxygen ventilator |
5268021, |
Nov 20 1989 |
CHART SEQUAL TECHNOLOGIES INC |
Fluid fractionator |
5275642, |
May 17 1989 |
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Molecular sieve for oxygen concentrator |
5340381, |
May 17 1993 |
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Operating system for dual-sieve oxygen concentrators |
5351522, |
Nov 02 1993 |
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Gas sensor |
5469372, |
Aug 29 1994 |
Raymond A., McBrearty |
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5474595, |
Apr 25 1994 |
CAIRE INC |
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5549720, |
Dec 19 1994 |
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Filter |
5575282, |
Feb 22 1991 |
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Jul 24 1995 |
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Molecular sieve container for oxygen concentrator |
5593478, |
Sep 28 1994 |
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Fluid fractionator |
5603315, |
Aug 14 1995 |
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Multiple mode oxygen delivery system |
5682877, |
Dec 30 1991 |
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System and method for automatically maintaining a blood oxygen saturation level |
5730778, |
Sep 28 1994 |
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Fluid fractionator |
5733359, |
Jun 19 1996 |
The BOC Group, Inc.; BOC GROUP, INC , THE |
Pressure swing adsorption process turndown control |
5746806, |
Aug 15 1996 |
CAIRE, INC |
Apparatus and method for controlling output of an oxygen concentrator |
5764534, |
Oct 13 1994 |
XILINX, Inc. |
Method for providing placement information during design entry |
5766310, |
Jul 19 1996 |
CARLETON LIFE SUPPORT SYSTEMS, INC |
Single stage secondary high purity oxygen concentrator |
5792665, |
May 29 1996 |
O2 TECHNOLOGIES, INC ; Salter Labs |
Oxygen sensing method and hand held analyzer therefore |
5827358, |
Nov 08 1996 |
Impact MST, Incorporated |
Rapid cycle pressure swing adsorption oxygen concentration method and apparatus |
5839434, |
Nov 16 1993 |
Invacare Corporation |
Method and apparatus for dispensing respiratory gases |
5858062, |
Feb 10 1997 |
Respironics, Inc |
Oxygen concentrator |
5858063, |
Jun 03 1997 |
CARLETON LIFE SUPPORT SYSTEMS, INC |
Oxygen concentrator with beds' duty cycle control and self-test |
5890490, |
Nov 29 1996 |
AIRMATRIX TECHNOLOGIES, INC |
Therapeutic gas flow monitoring system |
5893944, |
Sep 30 1997 |
CHUNG HO PRECISION CO , LTD |
Portable PSA oxygen generator |
5906672, |
Jun 14 1996 |
Invacare Corporation |
Closed-loop feedback control for oxygen concentrator |
5917135, |
Jun 14 1996 |
Invacare Corporation |
Gas concentration sensor and control for oxygen concentrator utilizing gas concentration sensor |
5928189, |
Apr 22 1997 |
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Activity responsive therapeutic delivery system |
5961694, |
Jun 09 1997 |
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Apparatus and process for the separation of gas mixtures by pressure swing adsorption |
5968236, |
Feb 20 1998 |
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Valve free oxygen concentrator |
5988465, |
Jul 01 1997 |
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Backpack assembly and method of use |
6065473, |
Jun 16 1997 |
CAIRE INC |
Non-contact gas dispenser and apparatus for use therewith |
6068680, |
Nov 08 1996 |
Impact MST, Incorporated |
Rapid cycle pressure swing adsorption oxygen concentration method and apparatus |
6186142, |
Jul 25 1997 |
MINNESOTA INNOVATIVE TECHNOLOGIES & INSTRUMENTS CORPORATION MITI |
Control of respiratory oxygen delivery |
6186477, |
May 05 1999 |
CAIRE INC |
Gas by-pass valve |
6192883, |
Aug 03 1999 |
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Oxygen flow control system and method |
6220244, |
Sep 15 1998 |
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Conserving device for use in oxygen delivery and therapy |
6238458, |
Sep 25 1998 |
L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes |
Process for treatment of a gaseous mixture by pressure swing adsorption, with variable production flow rate |
6253767, |
Dec 10 1998 |
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Gas concentrator |
6302107, |
Oct 01 1997 |
Invacare Corporation |
Apparatus and method for forming oxygen-enriched gas and compression thereof for high-pressure mobile storage utilization |
6314957, |
Apr 13 1999 |
AIR LIQUIDE SANTE INTERNATIONAL |
Portable home oxygen therapy medical equipment |
6371114, |
Jul 24 1998 |
Minnesota Innovative Technologies & Instruments Corporation |
Control device for supplying supplemental respiratory oxygen |
6394089, |
Jan 18 2000 |
COBHAM MISSION SYSTEMS DAVENPORT LSS INC |
Patient ventilator oxygen concentration system |
6427690, |
Oct 21 1998 |
CAIRE INC |
Combined oxygen regulator and conservation device |
6446630, |
Feb 11 1999 |
HEALTHCARE FINANCIAL SOLUTIONS, LLC, AS SUCCESSOR AGENT |
Cylinder filling medical oxygen concentrator |
6478850, |
Aug 02 2000 |
Wearair Oxygen Inc. |
Miniaturized wearable oxygen concentrator |
6478857, |
May 12 1999 |
RIC Investments, LLC |
Total delivery oxygen concentration system |
6514318, |
Jun 10 1999 |
AIR PRODUCTS AND CHEMICALS INC |
Multistage system for separating gas by adsorption |
6520176, |
May 25 2000 |
L AIR LIQUIDE SOCIETE ANONYME A DIRECTOIRE ET CONSEIL DE SURVEILLANCE POUR L ETUDE ET L EXPLOITATION DES PROCEDES GEORGES CLAUDE |
Portable oxygen concentrator |
6527830, |
Oct 03 2001 |
Praxair Technology, Inc. |
Pressure swing adsorption process for co-producing nitrogen and oxygen |
6532958, |
Jul 25 1997 |
Minnesota Innovative Technologies & Instruments Corporation |
Automated control and conservation of supplemental respiratory oxygen |
6536431, |
Apr 26 1999 |
Oxygen Leisure Products Limited |
Oxygen dispenser |
6547851, |
Aug 02 2000 |
Wearair Oxygen Inc. |
Miniaturized wearable oxygen concentrator |
6551384, |
Jul 05 2001 |
PRAXAIR TECHNOLOGY, INC |
Medical oxygen concentrator |
6558451, |
May 10 2000 |
CAIRE INC |
Multiple bed pressure swing adsorption method and apparatus |
6561187, |
Jul 25 1997 |
Minnesota Innovative Technologies & Instruments Corporation |
Control of supplemental respiratory oxygen |
6629525, |
Aug 03 2000 |
CAIRE INC |
Portable oxygen concentration system and method of using the same |
6651658, |
Aug 03 2000 |
CAIRE INC |
Portable oxygen concentration system and method of using the same |
6691702, |
Aug 03 2000 |
CAIRE INC |
Portable oxygen concentration system and method of using the same |
6698423, |
Jun 16 1997 |
Respironics, Inc |
Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator |
6699307, |
Oct 11 2002 |
LUMMUS TECHNOLOGY INC |
High recovery PSA cycles and apparatus with reduced complexity |
6702880, |
May 17 2002 |
Pentair Filtration Solutions, LLC |
Inlet silencer/filter for an oxygen concentrator |
6712876, |
Aug 27 2002 |
COBHAM MISSION SYSTEMS DAVENPORT LSS INC |
Oxygen concentrator system with altitude compensation |
6712877, |
Aug 27 2002 |
COBHAM MISSION SYSTEMS DAVENPORT LSS INC |
Oxygen concentrator system |
6749405, |
Jun 16 2000 |
ENTERASYS NETWORKS, INC |
Reversible pivoting vane rotary compressor for a valve-free oxygen concentrator |
6755895, |
Apr 09 2002 |
LUMMUS TECHNOLOGY INC |
Method and apparatus for pressure swing adsorption |
6764534, |
Jan 31 2002 |
CAIRE INC |
Portable oxygen concentrator |
6802889, |
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Air Products and Chemicals, Inc. |
Pressure swing adsorption system for gas separation |
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Oxygen enriching apparatus, controller for the oxygen enriching apparatus, and recording medium for the controller |
6896721, |
Oct 03 2001 |
CITIBANK, N A , AS ADMINISTRATIVE AND COLLATERAL AGENT |
Motor start-up unloading in an oxygen concentrator |
6908503, |
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CAIRE INC |
Reduced noise oxygen concentrator |
6918953, |
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Modular pressure swing adsorption process and apparatus |
6929683, |
Apr 09 2002 |
LUMMUS TECHNOLOGY INC |
Method and apparatus for pressure swing adsorption |
6935460, |
May 21 2003 |
CAIRE INC |
Noise muffler for oxygen concentrator |
6949133, |
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CAIRE INC |
Portable oxygen concentrator |
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Acoba, LLC |
Nasal cannula |
7011092, |
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Portable hypoxic apparatus |
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Nasal pressure sensor oxygen therapy device |
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Incubator with oxygen metering |
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Gas concentration method and its apparatus |
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Valve-free oxygen concentrator featuring reversible compressors |
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Personal oxygen concentrator |
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