B65G 47/19
Having means for controlling material flow
Official title: having means for controlling material flow, e.g. to prevent overloading
B65G47/19 (Having means for controlling material flow) appears on 205 US grants and 157 published applications in this corpus.
Search patents in B65G- Granted patents
- 205
- Published applications
- 157
- Assignees
- 162
- Inventors
- 402
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 9 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 3 |
| 2003 | 2 | 4 |
| 2004 | 4 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 6 |
| 2009 | 0 | 4 |
| 2010 | 4 | 3 |
| 2011 | 2 | 3 |
| 2012 | 1 | 4 |
| 2013 | 3 | 5 |
| 2014 | 5 | 10 |
| 2015 | 5 | 6 |
| 2016 | 9 | 12 |
| 2017 | 9 | 6 |
| 2018 | 11 | 8 |
| 2019 | 6 | 7 |
| 2020 | 3 | 9 |
| 2021 | 10 | 13 |
| 2022 | 5 | 12 |
| 2023 | 9 | 8 |
| 2024 | 11 | 10 |
| 2025 | 13 | 11 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Drop-down device30 Jun 2026US 12,668,438 B2Altria Client Services LLC
- Modular spreader device kit and method of assembly2 Jun 2026US 12,643,745 B2
- System and method for automated sortation27 Jan 2026US 12,533,712 B2Aegis Sortation, LLC
- Discharge hopper with floating load cell support to facilitate flow control through proppant handling system6 Jan 2026US 12,515,891 B2Quickthree Technology, LLC
- Modular spreader device kit and method of assembly23 Dec 2025US 12,503,317 B2
- Storage of granular compositions1 Oct 2026US 2026/0296797 A1
- Drop-down device1 Oct 2026US 2026/0296810 A1Altria Client Services LLC
- Proppant handling system with one or more bucket elevators and proppant delivery rate control20 Aug 2026US 2026/0243153 A1Quickthree Technology, LLC
- System for storing, transporting and dispensing wet sand to a hydraulic fracturing operation at a well site11 Jun 2026US 2026/0159331 A1Sandbox Enterprises, LLC
- Modular spreader device kit and method of assembly28 May 2026US 2026/0145886 A1
Most cited
By later US patents
- 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
- Apparatus for conveying granular plastic material79US 6,379,086 B1Mann & Hummel ProTec GmbH · 2002
- Automatically adjustable continuous feeder system56US 4,580,698 APebco, Inc. · 1986
- Methods and systems to transfer proppant for fracking with reduced risk of production and release of silica dust at a well site55US 9,969,564 B2Oren Technologies, LLC · 2018
- Feed control for tub type hay grinder52US 3,966,128 AHaybuster Manufacturing, Inc. · 1976