B04C 5/15
With swinging flaps or revolving sluices
Official title: with swinging flaps or revolving sluices; Sluices; Check-valves
B04C5/15 (With swinging flaps or revolving sluices) appears on 48 US grants and 46 published applications in this corpus.
Search patents in B04C- Granted patents
- 48
- Published applications
- 46
- Assignees
- 41
- Inventors
- 114
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 3 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 5 |
| 2011 | 3 | 0 |
| 2012 | 0 | 2 |
| 2013 | 2 | 2 |
| 2014 | 2 | 3 |
| 2015 | 1 | 1 |
| 2016 | 2 | 2 |
| 2017 | 2 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 4 |
| 2020 | 0 | 3 |
| 2021 | 2 | 2 |
| 2022 | 3 | 5 |
| 2023 | 2 | 3 |
| 2024 | 2 | 1 |
| 2025 | 2 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Foreign matter removal device17 Feb 2026US 12,551,905 B2Mitsubishi Electric Corporation
- Apparatus trapping an exhaust material from a substrate-processing process and apparatus for processing a substrate including the trapping apparatus19 Aug 2025US 12,390,763 B2Samsung Electronics Co., Ltd.
- Supersonic dehydration and disinfection system and method5 Aug 2025US 12,379,156 B2
- Librixer comminutor and particle air classifier system31 Dec 2024US 12,179,210 B2Libriixer AB
- Cyclone separator particularly for a powder recovery device of a powder coating system17 Sep 2024US 12,090,494 B2Gema Switzerland GmbH
- Supersonic dehydration and disinfection system and method25 Dec 2025US 2025/0389482 A1Adar Technologies, LLC
- Apparatus and method of trapping an exhaust material from a substrate-processing process and apparatus for processing a substrate including the trapping apparatus20 Nov 2025US 2025/0352949 A1Samsung Electronics Co., Ltd.
- Hydrocyclone contactor for carbon dioxide removal4 Sep 2025US 2025/0276331 A1
- Foreign matter removal device14 Aug 2025US 2025/0256291 A1Mitsubishi Electric Corporation
- Gas-liquid separator10 Oct 2024US 2024/0335843 A1Mayekawa Mfg. Co., Ltd.
Most cited
By later US patents
- Vehicle filter assembly87US 7,938,871 B2Nissan North America, Inc. · 2011
- Dust/particle collecting arrangement for cyclone separators37US 6,818,033 B22004
- Vortex waste separator apparatus36US 7,998,251 B2B/E Aerospace, Inc. · 2011
- Fuel/contaminant separator31US 5,227,061 A1993
- Air/particle separator28US 6,936,095 B22005