B03C 3/768
With free falling masses
Official title: {with free falling masses, e.g. dropped metal balls}
B03C3/768 (With free falling masses) appears on 3 US grants and 1 published applications in this corpus.
Search patents in B03C- Granted patents
- 3
- Published applications
- 1
- Assignees
- 3
- Inventors
- 4
- Latest grant
- 30 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electrostatic precipitator system having a grid for collection of particles30 Nov 2021US 11,185,871 B2exodraft a/s
- Electric precipitator and electric precipitation electrode used for the same8 Jan 2002US 6,336,961 B1
- Rapping mechanism for rapping the electrodes of an electrostatic precipitator21 Jun 1988US 4,752,309 AF. L. Smidth & Co. A/S
Most cited
By later US patents