C01B 2210/0048
Air
C01B2210/0048 (Air) appears on 10 US grants and 22 published applications in this corpus.
Search patents in C01B- Granted patents
- 10
- Published applications
- 22
- Assignees
- 11
- Inventors
- 49
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 3 | 5 |
| 2019 | 2 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 5 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus for precooling hydrogen for liquefaction using external liquid nitrogen and high pressure gaseous nitrogen24 Mar 2026US 12,584,686 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Power supply control device of nitrogen gas generator29 Sep 2020US 10,786,778 B2System Instruments Co., Ltd.
- Oxygen production process of VSA type with period regeneration13 Aug 2019US 10,377,630 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Xenon collection method and system12 Mar 2019US 10,226,731 B2Battelle Memorial Institute
- Method and apparatus for argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption system3 Jul 2018US 10,012,437 B2Praxair Technology, Inc.
- Oxygen concentrator assembled with quick-detach molecular sieve10 Sep 2026US 2026/0263997 A1
- Helium recovery process30 Nov 2023US 2023/0382735 A1AIR LIQUIDE ELECTRONICS GmbH
- Process for precooling hydrogen for liquefaction with supplement liquid nitrogen6 Jul 2023US 2023/0213272 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Integrated industrial unit6 Jul 2023US 2023/0213273 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process for precooling hydrogen for liquefaction using external liquid nitrogen and high pressure gaseous nitrogen6 Jul 2023US 2023/0213274 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- One-step process for purifying an inert gas54US 4,713,224 AThe BOC Group, Inc. · 1987
- Two stage pressure swing adsorption process for producing enriched-oxygen47US 8,128,734 B2Chengdu Tianli Chemical Engineering Technology Co., Ltd. · 2012
- Control system for helium recovery11US 7,169,210 B2Praxair Technology, Inc. · 2007
- Xenon collection method and system2US 10,005,018 B2Battelle Memorial Institute · 2018
- Membrane separation process and membrane plant for energy-efficient production of oxygen1US 9,901,866 B2Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V. · 2018