Assignee
INOGEN INC
US47 patents
Top patents by PatentIndex Score
US8377181B2Feb 19, 2013
Advanced portable oxygen concentrator
INOGEN INC40 citations98
US8366815B2Feb 5, 2013
Advanced portable oxygen concentrator
INOGEN INC47 citations98
US7857894B2Dec 28, 2010
Adsorbent bed pressure balancing for a gas concentrator
INOGEN INC53 citations98
US7780768B2Aug 24, 2010
Gas concentrator with improved water rejection capability
INOGEN INC56 citations98
US7066985B2Jun 27, 2006
Portable gas fractionalization system
INOGEN INC135 citations98
US7922789B1Apr 12, 2011
Portable gas fractionalization system
INOGEN INC65 citations97
US7841343B2Nov 30, 2010
Systems and methods for delivering therapeutic gas to patients
INOGEN INC87 citations97
US7135059B2Nov 14, 2006
Portable gas fractionalization system
INOGEN INC83 citations97
USD528212SSep 12, 2006
Portable oxygen concentrator
INOGEN INC68 citations97
US7753996B1Jul 13, 2010
Portable gas fractionalization system
INOGEN INC75 citations96
US7730887B2Jun 8, 2010
Portable gas fractionalization system
INOGEN INC75 citations96
US7438745B2Oct 21, 2008
Portable gas fractionalization system
INOGEN INC82 citations96
US7708802B1May 4, 2010
Gas fractionalization apparatus with built-in administrative and self-diagnostic functions
INOGEN INC72 citations95
US7686870B1Mar 30, 2010
Expandable product rate portable gas fractionalization system
INOGEN INC80 citations95
USD930835SSep 14, 2021
Oxygen concentrator
INOGEN INC25 citations93
USD860459SSep 17, 2019
Oxygen concentrator
INOGEN INC22 citations93
US7585351B2Sep 8, 2009
Systems and methods of monitoring and controlling the performance of a gas fractionalization apparatus
INOGEN INC61 citations93
USD510169SSep 27, 2005
Mobility cart for transporting oxygen concentrators and related accessories
INOGEN INC23 citations92
USD700701SMar 4, 2014
Oxygen concentrator
INOGEN INC35 citations90
USD940648SJan 11, 2022
Oxygen concentrator battery
INOGEN INC10 citations85
US11083865B2Aug 10, 2021
Compact portable oxygen concentrator
INOGEN INC6 citations84
US10786644B2Sep 29, 2020
Gas concentrator with removable cartridge adsorbent beds
INOGEN INC6 citations84
US10695520B2Jun 30, 2020
Gas concentrator with removable cartridge adsorbent beds
INOGEN INC5 citations84
US10869986B2Dec 22, 2020
Gas concentrator with removable cartridge absorbent beds
INOGEN INC7 citations83
USD706211SJun 3, 2014
Oxygen concentrator battery
INOGEN INC8 citations83
US11786689B2Oct 17, 2023
Gas concentrator with removable cartridge adsorbent beds
INOGEN INC2 citations72
USD930147SSep 7, 2021
Nasal interface for ventilation
INOGEN INC1 citations72
USD894117SAug 25, 2020
Oxygen concentrator battery
INOGEN INC3 citations72
US12502503B2Dec 23, 2025
Gas concentrator with removable cartridge adsorbent beds
INOGEN INC0 citations62
US12447303B2Oct 21, 2025
Compact portable oxygen concentrator
INOGEN INC0 citations62
US12434032B2Oct 7, 2025
Oxygen gas concentrator with outlet accumulator
INOGEN INC0 citations62
US12208212B2Jan 28, 2025
Gas concentrator with removable cartridge adsorbent beds
INOGEN INC0 citations62
US12173827B2Dec 24, 2024
Compact portable oxygen concentrator
INOGEN INC0 citations62
US11964105B2Apr 23, 2024
Oxygen gas concentrator with outlet accumulator
INOGEN INC1 citations62
US11918746B2Mar 5, 2024
Concentrator with electronic handheld remote delivery device
INOGEN INC0 citations62
US11821559B2Nov 21, 2023
Compact portable oxygen concentrator
INOGEN INC0 citations62
US11801359B2Oct 31, 2023
Gas concentrator with removable cartridge adsorbent beds
INOGEN INC0 citations62
US11686415B2Jun 27, 2023
Compact portable oxygen concentrator
INOGEN INC0 citations62
US11554238B2Jan 17, 2023
Concentrator with electronic handheld remote delivery device
INOGEN INC1 citations62
US11484680B2Nov 1, 2022
Gas concentrator with removable cartridge adsorbent beds
INOGEN INC0 citations62
US11293577B2Apr 5, 2022
Compact portable oxygen concentrator
INOGEN INC0 citations62
US11376387B2Jul 5, 2022
Nasal interface apparatus and systems for use with a respiratory assist device
INOGEN INC1 citations61
USD948056SApr 5, 2022
Hand-held ventilator
INOGEN INC0 citations61
US12296100B2May 13, 2025
Conforming nasal pillow
INOGEN INC0 citations60
US11607517B2Mar 21, 2023
Conforming nasal pillow
INOGEN INC1 citations60
US12233211B2Feb 25, 2025
Systems and methods for mitigating noise and vibration in a portable oxygen concentrator
INOGEN INC0 citations51
US11904096B2Feb 20, 2024
Nasal interface apparatus and systems for use with a respiratory assist device
INOGEN INC0 citations50