B03C 3/019
Post-treatment of gases
B03C3/019 (Post-treatment of gases) appears on 99 US grants and 92 published applications in this corpus.
Search patents in B03C- Granted patents
- 99
- Published applications
- 92
- Assignees
- 85
- Inventors
- 275
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 3 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 3 |
| 2016 | 2 | 3 |
| 2017 | 1 | 3 |
| 2018 | 1 | 2 |
| 2019 | 4 | 6 |
| 2020 | 1 | 7 |
| 2021 | 3 | 6 |
| 2022 | 2 | 8 |
| 2023 | 7 | 19 |
| 2024 | 8 | 12 |
| 2025 | 10 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for producing carbonate salts22 Sep 2026US 12,741,880 B2Nanomist Technologies Co., Ltd.
- Particulate collecting device17 Mar 2026US 12,576,409 B2The Tyre Collective Ltd
- Exhaust fan for preventing air pollution2 Dec 2025US 12,485,376 B2Microjet Technology Co., Ltd.
- Supervisory control and pathogen-destroying electrostatic precipitator system2 Dec 2025US 12,485,430 B2Agentis Air LLC
- Particle repelling arrangement25 Nov 2025US 12,478,980 B1Lunar Helium-3 Mining, LLC
- Ionic Personal Exhalant Filter30 Jul 2026US 2026/0215495 A1Philter Labs, Inc.
- Catalyst treatment apparatus using plasma and exhaust gas treatment system using the same30 Apr 2026US 2026/0115661 A1Ennopia
- Gas collection chamber with adsorber26 Feb 2026US 2026/0054270 A1Lunar Helium-3 Mining, LLC
- Electro-ionic mask devices for improved protection from airborne biopathogens9 Oct 2025US 2025/0312802 A1
- Air cleaning module and air cleaning device17 Jul 2025US 2025/0229206 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Method and apparatus for flue gas cleaning by separation and liquefaction of sulfur dioxide and carbon dioxide127US 5,133,190 A1992
- Automatic air cleaner92US 5,702,507 AYih Change Enterprise Co., Ltd. · 1997
- Compact hybrid particulate collector (COHPAC)74US 5,158,580 AElectric Power Research Institute, Inc. · 1992
- Method and system for a condensing boiler and flue gas cleaning by cooling and liquefaction72US 5,321,946 A1994
- Air cleaner including an electrostatic precipitator71US 5,055,115 A1991