C01B 2210/0045
Oxygen
C01B2210/0045 (Oxygen) appears on 129 US grants and 97 published applications in this corpus.
Search patents in C01B- Granted patents
- 129
- Published applications
- 97
- Assignees
- 82
- Inventors
- 336
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 5 |
| 2003 | 4 | 3 |
| 2004 | 3 | 5 |
| 2005 | 1 | 3 |
| 2006 | 0 | 1 |
| 2007 | 4 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 5 |
| 2010 | 2 | 5 |
| 2011 | 2 | 4 |
| 2012 | 3 | 3 |
| 2013 | 8 | 7 |
| 2014 | 1 | 7 |
| 2015 | 6 | 3 |
| 2016 | 5 | 4 |
| 2017 | 6 | 6 |
| 2018 | 4 | 5 |
| 2019 | 2 | 4 |
| 2020 | 5 | 7 |
| 2021 | 4 | 3 |
| 2022 | 2 | 4 |
| 2023 | 3 | 5 |
| 2024 | 1 | 3 |
| 2025 | 2 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas production device, gas production system and gas production method11 Aug 2026US 12,703,636 B2Sekisui Chemical Co., Ltd.
- System for obtaining high purity nitrogen in nitrogen gas purification applications and a method thereof17 Feb 2026US 12,552,669 B2Mikropor Makina Sana Yi Ve Ticaret Anonim Sirketi
- Integrated ammonia and sulfuric acid production plant and process20 Jan 2026US 12,528,752 B2Chemetics Inc.
- 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
- Gas recovery method21 Jan 2025US 12,201,936 B2Gas Recovery and Recycle Limited
- Method for obtaining xenon using a molecular sieve20 Aug 2026US 2026/0242223 A1Linde Aktiengesellschaft
- Method and apparatus for separating a component mixture26 Jun 2025US 2025/0206607 A1Linde Aktiengesellschaft
- Geothermally driven ammonia production1 May 2025US 2025/0136457 A1EnhancedGEO Holdings, LLC
- Method and equipment for producing hydrogen-enriched gas4 Jul 2024US 2024/0217818 A1Inpex Corporation
- Identifying Repetitive Portions of Clinical Notes and Generating Summaries Pertinent to Treatment of a Patient Based on the Identified Repetitive Portions15 Feb 2024US 2024/0053307 A1Merative US L.P.
Most cited
By later US patents
- Methods for purifying inert gas streams74US 4,579,723 AThe BOC Group, Inc. · 1986
- Adsorbent for separating nitrogen from mixed gas of oxygen and nitrogen66US 6,916,358 B2Taiyo Nippon Sanso Corporation · 2005
- Production of membrane-derived nitrogen from combustion gases57US 4,781,907 A1988
- Nitrogen generation control systems and methods for controlling oxygen content in containers for perishable goods55US 5,649,995 ANitec, Inc. · 1997
- One-step process for purifying an inert gas54US 4,713,224 AThe BOC Group, Inc. · 1987