B03C 3/025
Combinations of electrostatic separators
Official title: {Combinations of electrostatic separators, e.g. in parallel or in series, stacked separators or dry-wet separator combinations}
B03C3/025 (Combinations of electrostatic separators) appears on 117 US grants and 128 published applications in this corpus.
Search patents in B03C- Granted patents
- 117
- Published applications
- 128
- Assignees
- 119
- Inventors
- 302
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 4 |
| 2006 | 4 | 10 |
| 2007 | 8 | 5 |
| 2008 | 4 | 5 |
| 2009 | 4 | 8 |
| 2010 | 3 | 3 |
| 2011 | 2 | 13 |
| 2012 | 3 | 6 |
| 2013 | 9 | 8 |
| 2014 | 6 | 3 |
| 2015 | 3 | 3 |
| 2016 | 2 | 2 |
| 2017 | 3 | 7 |
| 2018 | 1 | 9 |
| 2019 | 6 | 5 |
| 2020 | 9 | 2 |
| 2021 | 3 | 7 |
| 2022 | 3 | 9 |
| 2023 | 3 | 3 |
| 2024 | 4 | 8 |
| 2025 | 3 | 3 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Gravel circulation dry electrostatic precipitator26 May 2026US 12,636,660 B2Metro Engineering Co., Ltd.
- Air flow management for cooking system3 Jun 2025US 12,320,527 B2Evo America, LLC
- Electro-ionic mask devices for improved protection from airborne biopathogens29 Apr 2025US 12,285,766 B2
- Electro-ionic mask devices for improved protection from airborne biopathogens9 Oct 2025US 2025/0312802 A1
- V-bank filter23 Jan 2025US 2025/0025819 A1Healthway Home Products Company Inc.
- Electrostatic binning precipitator16 Jan 2025US 2025/0018402 A1Lyten, Inc.
- Electrostatic air filter28 Nov 2024US 2024/0390916 A1Darwin Technology International Limited
- Gravel circulation dry electrostatic precipitator21 Nov 2024US 2024/0382977 A1Metro Engineering Co., Ltd.
Most cited
By later US patents
- Method and apparatus for moving, filtering and ionizing air62US 6,228,149 B1Patterson Technique, Inc. · 2001
- Electrostatic particle collecting apparatus58US 4,264,343 AMonsanto Company · 1981
- Method and apparatus for removing particulate and vapor phase contaminants from a gas stream58US 7,141,091 B2Electric Power Research Institute, Inc. · 2006
- Process and apparatus for electrostatic purification of dust- and pollutant-containing exhaust gases in multiple-field precipitators56US 5,137,546 AMetallgesellschaft Aktiengesellschaft · 1992
- Air filtration system51US 7,332,019 B2American Standard International Inc. · 2008