B01D 2251/102
Oxygen
B01D2251/102 (Oxygen) appears on 227 US grants and 286 published applications in this corpus.
Search patents in B01D- Granted patents
- 227
- Published applications
- 286
- Assignees
- 196
- Inventors
- 671
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 5 |
| 2006 | 0 | 2 |
| 2007 | 0 | 3 |
| 2008 | 1 | 6 |
| 2009 | 4 | 15 |
| 2010 | 10 | 19 |
| 2011 | 13 | 14 |
| 2012 | 10 | 10 |
| 2013 | 11 | 10 |
| 2014 | 12 | 17 |
| 2015 | 15 | 9 |
| 2016 | 7 | 7 |
| 2017 | 5 | 12 |
| 2018 | 8 | 15 |
| 2019 | 15 | 20 |
| 2020 | 20 | 19 |
| 2021 | 15 | 20 |
| 2022 | 13 | 15 |
| 2023 | 10 | 20 |
| 2024 | 12 | 18 |
| 2025 | 16 | 17 |
| 2026 | 6 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Boil-off management system30 Jun 2026US 12,669,222 B2MAGNA Energy Storage Systems GesmbH
- Ozone disinfection system with replaceable water cartridge26 May 2026US 12,636,396 B2BioSure North America LLC
- Method for capturing carbon dioxide and nitrogen oxides in flue gas and conversion thereof to carbon source and nitrogen source needed for algae growth31 Mar 2026US 12,589,355 B2
- Methods and equipment for treatment of odorous gas streams13 Jan 2026US 12,521,675 B2
- Interchangeable modular disinfection platform using electrochemical ozone generation and catalytic air purification6 Jan 2026US 12,514,950 B2BioSure North America LLC
- Co2 capture and hydrogen recovery from fuel cell anode off gas8 Oct 2026US 2026/0312104 A1Uop LLC
- Complete oxidation catalysts for dilute alkanes1 Oct 2026US 2026/0295521 A1Icarus Technology LLC
- Reduction of nox emissions from semiconductor process tools17 Sep 2026US 2026/0273463 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Reduction of nox and n2o in the exhaust gas of ship motors operated using nh330 Jul 2026US 2026/0216649 A1
- Catalytic oxidation reactors for the removal of low-level methane in air21 May 2026US 2026/0138088 A1Massachusetts Institute of Technology
Most cited
By later US patents
- Method and apparatus for reducing nitrogen oxides from internal combustion engine207US 5,272,871 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993
- Exhaust gas purification method and apparatus therefor41US 5,662,869 ANGK Insulators, Ltd. · 1997
- Method of mercury removal in a wet flue gas desulfurization system37US 7,524,473 B2ALSTOM Technology Ltd · 2009
- Bioremediation of pollutants with butane-utilizing bacteria33US 5,888,396 A1999
- System and method of in-situ bioremediation with butane-utilizing bacteria33US 6,245,235 B12001