B03C 3/013
Conditioning by chemical additives
Official title: Conditioning by chemical additives, e.g. with SO3
B03C3/013 (Conditioning by chemical additives) appears on 125 US grants and 60 published applications in this corpus.
Search patents in B03C- Granted patents
- 125
- Published applications
- 60
- Assignees
- 74
- Inventors
- 217
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 4 |
| 2004 | 1 | 5 |
| 2005 | 3 | 2 |
| 2006 | 3 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 4 |
| 2010 | 2 | 2 |
| 2011 | 2 | 2 |
| 2012 | 2 | 3 |
| 2013 | 2 | 3 |
| 2014 | 1 | 2 |
| 2015 | 3 | 1 |
| 2016 | 0 | 4 |
| 2017 | 2 | 1 |
| 2018 | 2 | 3 |
| 2019 | 0 | 3 |
| 2020 | 4 | 5 |
| 2021 | 3 | 5 |
| 2022 | 3 | 4 |
| 2023 | 1 | 1 |
| 2024 | 3 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and equipment for treatment of odorous gas streams13 Jan 2026US 12,521,675 B2
- Sanitization system22 Apr 2025US 12,281,468 B2Kobler Co.
- Apparatus and method for particulate capture from gas streams and a method of removing soluble particulate from a gas10 Sep 2024US 12,083,468 B2Stamicarbon B. V.
- Methods and equipment for treatment of odorous gas streams16 Jul 2024US 12,036,509 B2
- Apparatus and method for removing nitrogen oxide from exhaust gas30 Jan 2024US 11,883,781 B2Korea Institute of Machinery & Materials
- Hybrid filter unit8 Oct 2026US 2026/0307082 A1Brairtech Sweden AB
- Sanitization system3 Jul 2025US 2025/0215679 A1Kohler Co.
- Systems and methods for removing species from gas streams2 Jan 2025US 2025/0001355 A1Massachusetts Institute of Technology
- Methods and Equipment for Treatment of Odorous Gas Streams17 Oct 2024US 2024/0342651 A1
- Apparatus and method for removing nitrogen oxide from exhaust gas23 Mar 2023US 2023/0087167 A1Korea Institute of Machinery & Materials
Most cited
By later US patents
- Method for removing pollutants from a combustor flue gas and system for same199US 5,505,766 AElectric Power Research, Inc. · 1996
- Sorbents and methods for the removal of mercury from combustion gases199US 6,953,494 B22005
- Barrier discharge conversion of Hg, SO.sub.2 and NOx79US 6,117,403 AZero Emissions Technology Inc. · 2000
- Barrier discharge conversion of SO.sub.2 and NOx to acids78US 6,132,692 APowerspan Corp. · 2000
- Barrier discharge conversion of SO.sub.2 and NOx to acids69US 5,871,703 AZero Emissions Technology Inc. · 1999