B65G 69/18
Preventing escape of dust
B65G69/18 (Preventing escape of dust) appears on 365 US grants and 257 published applications in this corpus.
Search patents in B65G- Granted patents
- 365
- Published applications
- 257
- Assignees
- 232
- Inventors
- 583
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 10 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 12 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 0 |
| 2002 | 6 | 3 |
| 2003 | 9 | 14 |
| 2004 | 9 | 7 |
| 2005 | 6 | 7 |
| 2006 | 2 | 5 |
| 2007 | 6 | 9 |
| 2008 | 5 | 4 |
| 2009 | 4 | 4 |
| 2010 | 8 | 8 |
| 2011 | 4 | 10 |
| 2012 | 4 | 14 |
| 2013 | 9 | 4 |
| 2014 | 11 | 11 |
| 2015 | 11 | 16 |
| 2016 | 18 | 17 |
| 2017 | 11 | 16 |
| 2018 | 17 | 17 |
| 2019 | 9 | 12 |
| 2020 | 15 | 12 |
| 2021 | 12 | 12 |
| 2022 | 14 | 20 |
| 2023 | 5 | 9 |
| 2024 | 8 | 11 |
| 2025 | 11 | 10 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Transfer device25 Aug 2026US 12,716,536 B2Chargepoint Technology Limited
- Connecting device14 Jul 2026US 12,679,677 B2Hecht Technologie GmbH
- Bin vent apparatus and methods16 Jun 2026US 12,653,110 B2Grain Processing Corporation
- Dust control system for spot filters9 Jun 2026US 12,649,632 B1AG Growth International Inc.
- System for conveying proppant to a fracking site hopper2 Jun 2026US 12,643,750 B2Sandbox Enterprises, LLC
- Integrated conveyor system for efficient and automated handling of particulate materials from belly dump trailers17 Sep 2026US 2026/0274479 A1Belly2Box LLC
- Device and method for emptying a container with a liner30 Jul 2026US 2026/0217484 A1EMDE Automation GmbH
- Method of Self-Feeding Proppant Delivery to a Blender30 Apr 2026US 2026/0116669 A1Halliburton Energy Services.Inc.
- Connecting device9 Apr 2026US 2026/0097875 A1
- Powder handling device5 Feb 2026US 2026/0034730 A1General Electric Company
Most cited
By later US patents
- Containerised handling of bulk materials and apparatus therefor149US 7,252,309 B2Bee Kim Ong · 2007
- Hood for discharging the contents of an inverted container99US 5,971,219 A1999
- Methods and systems to transfer proppant for fracking with reduced risk of production and release of silica dust at a well site99US 9,340,353 B2Oren Technologies, LLC · 2016
- Bulk material container with a sliding cam lock closure plate80US 5,697,535 AFabricated Metals, Inc. · 1997
- Closed system and container for dust free loading and unloading of powdered materials73US 4,182,386 ASemi-Bulk Systems, Inc. · 1980