B65G 53/46
Gates or sluices
Official title: Gates or sluices, e.g. rotary wheels
B65G53/46 (Gates or sluices) appears on 363 US grants and 195 published applications in this corpus.
Search patents in B65G- Granted patents
- 363
- Published applications
- 195
- Assignees
- 230
- Inventors
- 585
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 14 | 0 |
| 1980 | 9 | 0 |
| 1981 | 10 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 10 | 0 |
| 1987 | 9 | 0 |
| 1988 | 12 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 4 |
| 2002 | 8 | 4 |
| 2003 | 8 | 9 |
| 2004 | 7 | 7 |
| 2005 | 1 | 4 |
| 2006 | 4 | 5 |
| 2007 | 2 | 3 |
| 2008 | 2 | 6 |
| 2009 | 2 | 4 |
| 2010 | 2 | 5 |
| 2011 | 6 | 4 |
| 2012 | 3 | 6 |
| 2013 | 4 | 3 |
| 2014 | 4 | 8 |
| 2015 | 7 | 5 |
| 2016 | 5 | 14 |
| 2017 | 10 | 18 |
| 2018 | 18 | 19 |
| 2019 | 16 | 11 |
| 2020 | 15 | 9 |
| 2021 | 8 | 8 |
| 2022 | 8 | 18 |
| 2023 | 10 | 4 |
| 2024 | 7 | 4 |
| 2025 | 6 | 10 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gunite feed system9 Jun 2026US 12,649,259 B2
- Powder feeder7 Apr 2026US 12,594,722 B2C4 Carbides Limited
- System and method for feeding bulk material into a pressurized environment3 Mar 2026US 12,565,390 B2Jenike & Johanson, Inc.
- Cellular wheel sluice for bulk material, and method for automatically clearing a cellular wheel of such a cellular wheel sluice3 Feb 2026US 12,540,044 B2Coperion GmbH
- Gunite feed wheel21 Oct 2025US 12,447,647 B2
- Powder Feeder28 May 2026US 2026/0145388 A1C4 Carbides Limited
- Agricultural planting machine seed meter having movable housing30 Apr 2026US 2026/0114355 A1Deere & Company
- Rotary Valve and Process Plant Having a Rotary Valve1 Jan 2026US 2026/0001731 A1Glatt Maschinen-und Apparatebau AG
- Hygienic rotary valve11 Dec 2025US 2025/0377050 A1
- Pellet transfer system13 Nov 2025US 2025/0346442 A1
Most cited
By later US patents
- Apparatus for conditioning and dispensing loose fill insulation material64US 5,829,649 AWestern Fibers, Inc. · 1998
- Feeder assembly for insulation blowing machines55US 4,465,239 A1984
- Material feeding apparatus using pressurized air50US 4,978,252 A1990
- Vertical-shaft airlock50US 5,997,220 AWormser Systems, Inc. · 1999
- Valve assembly49US 4,137,935 AMacawber Engineering Limited · 1979