C01B 23/0089
By absorption in liquids
Official title: {by absorption in liquids}
C01B23/0089 (By absorption in liquids) appears on 8 US grants and 10 published applications in this corpus.
Search patents in C01B- Granted patents
- 8
- Published applications
- 10
- Assignees
- 6
- Inventors
- 23
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- System for purifying argon by cryogenic distillation23 Dec 2025US 12,503,365 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Gas purification method and device13 May 2025US 12,297,107 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for pretreating and recovering a rare gas from a gas contaminant stream exiting an etch chamber14 Mar 2023US 11,603,313 B2Praxair Technology, Inc.
- Cavitand compositions and methods of use thereof8 Nov 2022US 11,492,356 B2Georgetown University
- Process for argon and nitrogen production31 Aug 2021US 11,104,576 B2Casale SA
- Helium recovery from the natural gas in petrochemical plants12 Jun 2025US 2025/0187919 A1
- Novel method for pretreating and recovering a rare gas from a gas contaminant stream exiting an etch chamber15 Jun 2023US 2023/0183068 A1
- Gas purification method and device19 Jan 2023US 2023/0019514 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- System for purifying argon by cryogenic distillation1 Dec 2022US 2022/0380215 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for pretreating and recovering a rare gas from a gas contaminant stream exiting an etch chamber17 Nov 2022US 2022/0363540 A1Praxair Technology, Inc.
Most cited
By later US patents