B01D 21/22
Safety mechanisms
B01D21/22 (Safety mechanisms) appears on 10 US grants and 3 published applications in this corpus.
Search patents in B01D- Granted patents
- 10
- Published applications
- 3
- Assignees
- 6
- Inventors
- 19
- Latest grant
- 12 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Conveyor chain and transverse member monitoring apparatus12 Oct 2021US 11,142,405 B2Brentwood Industries, Inc.
- Conveyor chain and transverse member monitoring apparatus20 Oct 2020US 10,807,804 B2Brentwood Industries, Inc.
- Sediment collection device for home brewing system14 Feb 2012US 8,113,359 B2
- Automatically draining vacuum apparatus8 Apr 1997US 5,618,410 ADen-Tal-Ez, Inc.
- Sludge collector employing floating weir3 Jan 1995US 5,378,376 AWisconsin Oven Corporation
- Conveyor chain and transverse member monitoring apparatus4 Feb 2021US 2021/0032044 A1Brentwood Industries, Inc.
- Conveyor chain and transverse member monitoring apparatus2 Apr 2020US 2020/0102152 A1Brentwood Industries, Inc.
- Sediment collection device for home brewing system9 Jul 2009US 2009/0173674 A1
Most cited
By later US patents
- Conveyor chain and transverse member monitoring apparatus73US 10,807,804 B2Brentwood Industries, Inc. · 2020
- Sludge collector employing floating weir53US 5,378,376 AWisconsin Oven Corporation · 1995
- Solids handling in an oil/grease separator49US 5,360,555 AClearline Systems, Inc. · 1994
- Automatically draining vacuum apparatus15US 5,618,410 ADen-Tal-Ez, Inc. · 1997
- Sediment collection device for home brewing system9US 8,113,359 B22012