B65G 53/66
Use of indicator or control devices
Official title: Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material {(controlling the flow of coal firing systems C21B5/003)}
B65G53/66 (Use of indicator or control devices) appears on 325 US grants and 277 published applications in this corpus.
Search patents in B65G- Granted patents
- 325
- Published applications
- 277
- Assignees
- 199
- Inventors
- 591
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 1 |
| 2002 | 10 | 6 |
| 2003 | 5 | 6 |
| 2004 | 2 | 8 |
| 2005 | 5 | 7 |
| 2006 | 8 | 5 |
| 2007 | 3 | 1 |
| 2008 | 1 | 5 |
| 2009 | 6 | 4 |
| 2010 | 2 | 7 |
| 2011 | 1 | 8 |
| 2012 | 3 | 2 |
| 2013 | 6 | 7 |
| 2014 | 4 | 10 |
| 2015 | 6 | 12 |
| 2016 | 12 | 22 |
| 2017 | 19 | 22 |
| 2018 | 15 | 25 |
| 2019 | 22 | 25 |
| 2020 | 18 | 13 |
| 2021 | 19 | 13 |
| 2022 | 14 | 15 |
| 2023 | 13 | 11 |
| 2024 | 14 | 17 |
| 2025 | 9 | 14 |
| 2026 | 12 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Apparatus for conveying polyolefin particles8 Sep 2026US 12,729,076 B2JSP International SARL
- Decompressing unit for an apparatus for conveying polymer particles8 Sep 2026US 12,729,077 B2FOX Velution GmbH
- Pneumatic conveyor device for granular material and agricultural distributing machine18 Aug 2026US 12,708,065 B2Lemken GmbH & Co.KG
- Assemblies and methods for material extraction from retention collections11 Aug 2026US 12,703,585 B2Industrial Vacuum Transfer Services USA, LLC
- Assemblies and methods for material extraction from retention collections24 Sep 2026US 2026/0285620 A1Industrial Vacuum Transfer Services USA, LLC
- Receiver, assemblies, and methods for loading and extracting product in elevated tower24 Sep 2026US 2026/0285621 A1Industrial Vacuum Transfer Services USA, LLC
- Valve assembly for bulk material container discharge17 Sep 2026US 2026/0274146 A1
- Metering System for an Agricultural Distribution Machine and Method for Metering20 Aug 2026US 2026/0242159 A1Amazonen-Werke H. Dreyer SE & Co. KG
- Vibratory conveyors and method for vibratory conveying of bulk material16 Jul 2026US 2026/0200687 A1
Most cited
By later US patents
- Dry powder inhalers, related blister devices, and associated methods of dispensing dry powder substances and fabricating blister packages119US 6,889,690 B2Oriel Therapeutics, Inc. · 2005
- Dry powder inhalers, related blister devices, and associated methods of dispensing dry powder substances and fabricating blister packages67US 7,520,278 B2Oriel Therapeutics, Inc. · 2009
- Granular material transfer system64US 5,252,008 AAutoload, Inc. · 1993
- Pneumatic suction conveyor means for the gravimetric dosing of bulk material components55US 5,147,152 AAZO GmbH & Co. · 1992
- Plant for the controlled-speed pneumatic transport of granular material and conveyance speed control process51US 8,360,691 B2Moretto S.p.A. · 2013