B03C 3/72
Emergency control systems
B03C3/72 (Emergency control systems) appears on 40 US grants and 19 published applications in this corpus.
Search patents in B03C- Granted patents
- 40
- Published applications
- 19
- Assignees
- 27
- Inventors
- 79
- Latest grant
- 26 Apr 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 2 | 4 |
| 2009 | 4 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 0 | 2 |
| 2016 | 3 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electrostatic precipitator26 Apr 2022US 11,311,888 B2Clean Air Enterprise AG
- Electronic air cleaners and associated systems and methods2 Jun 2020US 10,668,483 B2University of Washington
- System for eliminating electrically conductive particles26 Feb 2019US 10,215,681 B2
- Detection of electrostatic filter for air filtration system28 Feb 2017US 9,579,663 B2Carrier Corporation
- Electronic air cleaners and associated systems and methods8 Nov 2016US 9,488,382 B2University of Washington through its Center for Commercialization
- Electrostatic precipitator9 Jan 2020US 2020/0009578 A1Clean Air Enterprise AG
- Electronic air cleaners and associated systems and methods26 Jan 2017US 2017/0021363 A1University of Washington through its Center for Commercialization
- System for eliminating electrically conductive particles1 Dec 2016US 2016/0349169 A1
- Electronic air cleaners and associated systems and methods12 Nov 2015US 2015/0323217 A1University of Washington through its Center for Commercialization
- Air purification device13 Aug 2015US 2015/0224516 A1Daikin Industries, Ltd.
Most cited
By later US patents