B65G 69/187
With non-return closures
Official title: {with non-return closures}
B65G69/187 (With non-return closures) appears on 8 US grants and 1 published applications in this corpus.
Search patents in B65G- Granted patents
- 8
- Published applications
- 1
- Assignees
- 7
- Inventors
- 10
- Latest grant
- 21 Apr 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 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 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Dust control device21 Apr 2020US 10,625,959 B2
- Adjustable aperture apparatus that retains dust from bulk material directed through the apparatus29 Apr 2008US 7,364,034 B1Benetech, Inc.
- Dust retention system16 Jan 2001US 6,174,121 B1Brian Investments Pty Ltd
- Mechanism for reducing emissions of dust from grain bins13 Apr 1999US 5,893,399 AAgricultural Building Company
- Dust control system13 Aug 1996US 5,544,686 AAgricultural Building Holdings, Inc.
Most cited
By later US patents
- Mechanism for reducing emissions of dust from grain bins16US 5,893,399 AAgricultural Building Company · 1999
- Filtering device12US 4,969,494 ASpiragaine S.A. · 1990
- Adjustable aperture apparatus that retains dust from bulk material directed through the apparatus12US 7,364,034 B1Benetech, Inc. · 2008
- Dust control system7US 5,544,686 AAgricultural Building Holdings, Inc. · 1996
- Hopper assemblies6US 4,942,911 ABTR Industrial Holdings, Ltd. · 1990