Assignee
INOGEN INC
US·47 granted patents·4 pending applications·1,236 citations·filing 2003–2025
Top patents by PatentIndex Score
51 records- 0198US7922789B1Portable gas fractionalization systemINOGEN INC·Filed 2007·Granted Apr 12, 2011·65 cites·8 claims
- 0298US7066985B2Portable gas fractionalization systemINOGEN INC·Filed 2003·Granted Jun 27, 2006·135 cites·21 claims
- 0397US7730887B2Portable gas fractionalization systemINOGEN INC·Filed 2007·Granted Jun 8, 2010·75 cites·14 claims
- 0496US7780768B2Gas concentrator with improved water rejection capabilityINOGEN INC·Filed 2007·Granted Aug 24, 2010·56 cites·12 claims
- 0596US7708802B1Gas fractionalization apparatus with built-in administrative and self-diagnostic functionsINOGEN INC·Filed 2006·Granted May 4, 2010·72 cites·5 claims
- 0695US10869986B2Gas concentrator with removable cartridge absorbent bedsINOGEN INC·Filed 2018·Granted Dec 22, 2020·7 cites·15 claims
- 0795USD528212SPortable oxygen concentratorINOGEN INC·Filed 2005·Granted Sep 12, 2006·68 cites·1 claims
- 0895US2025207705A1Compact portable oxygen concentratorINOGEN INC·Filed 2024·Application pending·0 cites
- 0994US8366815B2Advanced portable oxygen concentratorINOGEN INC·Filed 2011·Granted Feb 5, 2013·47 cites·2 claims
- 1094US7135059B2Portable gas fractionalization systemINOGEN INC·Filed 2003·Granted Nov 14, 2006·83 cites·15 claims
- 1193US10786644B2Gas concentrator with removable cartridge adsorbent bedsINOGEN INC·Filed 2017·Granted Sep 29, 2020·6 cites·20 claims
- 1293US10695520B2Gas concentrator with removable cartridge adsorbent bedsINOGEN INC·Filed 2017·Granted Jun 30, 2020·5 cites·24 claims
- 1393US8377181B2Advanced portable oxygen concentratorINOGEN INC·Filed 2011·Granted Feb 19, 2013·40 cites·8 claims
- 1493US7841343B2Systems and methods for delivering therapeutic gas to patientsINOGEN INC·Filed 2005·Granted Nov 30, 2010·87 cites·12 claims
- 1593US7753996B1Portable gas fractionalization systemINOGEN INC·Filed 2008·Granted Jul 13, 2010·75 cites·4 claims
- 1693US7585351B2Systems and methods of monitoring and controlling the performance of a gas fractionalization apparatusINOGEN INC·Filed 2006·Granted Sep 8, 2009·61 cites·26 claims
- 1792US11786689B2Gas concentrator with removable cartridge adsorbent bedsINOGEN INC·Filed 2020·Granted Oct 17, 2023·2 cites·12 claims
- 1892US11083865B2Compact portable oxygen concentratorINOGEN INC·Filed 2017·Granted Aug 10, 2021·6 cites·6 claims
- 1991US12434032B2Oxygen gas concentrator with outlet accumulatorINOGEN INC·Filed 2024·Granted Oct 7, 2025·0 cites·14 claims
- 2091US7686870B1Expandable product rate portable gas fractionalization systemINOGEN INC·Filed 2006·Granted Mar 30, 2010·80 cites·11 claims
- 2189US7857894B2Adsorbent bed pressure balancing for a gas concentratorINOGEN INC·Filed 2007·Granted Dec 28, 2010·53 cites·3 claims
- 2287USD930835SOxygen concentratorINOGEN INC·Filed 2019·Granted Sep 14, 2021·25 cites·1 claims
- 2387USD700701SOxygen concentratorINOGEN INC·Filed 2013·Granted Mar 4, 2014·35 cites·1 claims
- 2486US12173827B2Compact portable oxygen concentratorINOGEN INC·Filed 2022·Granted Dec 24, 2024·0 cites·19 claims
- 2585US11964105B2Oxygen gas concentrator with outlet accumulatorINOGEN INC·Filed 2020·Granted Apr 23, 2024·1 cites·14 claims
- 2684US12502503B2Gas concentrator with removable cartridge adsorbent bedsINOGEN INC·Filed 2023·Granted Dec 23, 2025·0 cites·18 claims
- 2783US12208212B2Gas concentrator with removable cartridge adsorbent bedsINOGEN INC·Filed 2022·Granted Jan 28, 2025·0 cites·20 claims
- 2883USD860459SOxygen concentratorINOGEN INC·Filed 2017·Granted Sep 17, 2019·22 cites·1 claims
- 2983US7438745B2Portable gas fractionalization systemINOGEN INC·Filed 2004·Granted Oct 21, 2008·82 cites·3 claims
- 3083USD510169SMobility cart for transporting oxygen concentrators and related accessoriesINOGEN INC·Filed 2004·Granted Sep 27, 2005·23 cites·1 claims
- 3182US11554238B2Concentrator with electronic handheld remote delivery deviceINOGEN INC·Filed 2020·Granted Jan 17, 2023·1 cites·18 claims
- 3277US11686415B2Compact portable oxygen concentratorINOGEN INC·Filed 2020·Granted Jun 27, 2023·0 cites·20 claims
- 3376US11293577B2Compact portable oxygen concentratorINOGEN INC·Filed 2020·Granted Apr 5, 2022·0 cites·13 claims
- 3475US2025387583A1Gas concentrator with removable cartridge adsorbent bedsINOGEN INC·Filed 2025·Application pending·0 cites
- 3574US2024198029A1Nasal interface apparatus and systems for use with a respiratory assist deviceINOGEN INC·Filed 2023·Application pending·0 cites
- 3673US12233211B2Systems and methods for mitigating noise and vibration in a portable oxygen concentratorINOGEN INC·Filed 2022·Granted Feb 25, 2025·0 cites·20 claims
- 3773US11376387B2Nasal interface apparatus and systems for use with a respiratory assist deviceINOGEN INC·Filed 2019·Granted Jul 5, 2022·1 cites·54 claims
- 3872US2025161622A1Systems and methods for mitigating noise and vibration in a portable oxygen concentratorINOGEN INC·Filed 2025·Application pending·0 cites
- 3971US12447303B2Compact portable oxygen concentratorINOGEN INC·Filed 2021·Granted Oct 21, 2025·0 cites·20 claims
- 4070US11918746B2Concentrator with electronic handheld remote delivery deviceINOGEN INC·Filed 2023·Granted Mar 5, 2024·0 cites·20 claims
- 4170US11821559B2Compact portable oxygen concentratorINOGEN INC·Filed 2020·Granted Nov 21, 2023·0 cites·10 claims
- 4269US11484680B2Gas concentrator with removable cartridge adsorbent bedsINOGEN INC·Filed 2020·Granted Nov 1, 2022·0 cites·20 claims
- 4368US12296100B2Conforming nasal pillowINOGEN INC·Filed 2023·Granted May 13, 2025·0 cites·20 claims
- 4468USD940648SOxygen concentrator batteryINOGEN INC·Filed 2019·Granted Jan 11, 2022·10 cites·1 claims
- 4566US11801359B2Gas concentrator with removable cartridge adsorbent bedsINOGEN INC·Filed 2020·Granted Oct 31, 2023·0 cites·11 claims
- 4664US11607517B2Conforming nasal pillowINOGEN INC·Filed 2015·Granted Mar 21, 2023·1 cites·20 claims
- 4759US11904096B2Nasal interface apparatus and systems for use with a respiratory assist deviceINOGEN INC·Filed 2020·Granted Feb 20, 2024·0 cites·10 claims
- 4855USD706211SOxygen concentrator batteryINOGEN INC·Filed 2013·Granted Jun 3, 2014·8 cites·1 claims
- 4952USD930147SNasal interface for ventilationINOGEN INC·Filed 2020·Granted Sep 7, 2021·1 cites·1 claims
- 5043USD894117SOxygen concentrator batteryINOGEN INC·Filed 2017·Granted Aug 25, 2020·3 cites·1 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →