B04C 5/12
Construction of the overflow ducting
Official title: Construction of the overflow ducting, e.g. diffusing or spiral exits
B04C5/12 (Construction of the overflow ducting) appears on 511 US grants and 436 published applications in this corpus.
Search patents in B04C- Granted patents
- 511
- Published applications
- 436
- Assignees
- 356
- Inventors
- 1,013
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 10 | 0 |
| 1982 | 11 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 12 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 14 | 0 |
| 1994 | 12 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 9 |
| 2002 | 12 | 9 |
| 2003 | 18 | 19 |
| 2004 | 14 | 20 |
| 2005 | 15 | 22 |
| 2006 | 10 | 22 |
| 2007 | 10 | 21 |
| 2008 | 19 | 17 |
| 2009 | 16 | 20 |
| 2010 | 13 | 25 |
| 2011 | 22 | 15 |
| 2012 | 14 | 19 |
| 2013 | 18 | 11 |
| 2014 | 13 | 26 |
| 2015 | 12 | 18 |
| 2016 | 18 | 17 |
| 2017 | 18 | 12 |
| 2018 | 11 | 16 |
| 2019 | 15 | 24 |
| 2020 | 16 | 23 |
| 2021 | 23 | 14 |
| 2022 | 10 | 18 |
| 2023 | 14 | 13 |
| 2024 | 9 | 13 |
| 2025 | 6 | 5 |
| 2026 | 11 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Separation device8 Sep 2026US 12,728,428 B2BUNRI Incorporation
- Gas-liquid separation device25 Aug 2026US 12,714,952 B2Hyundai Motor Company
- Centrifugal separator25 Aug 2026US 12,715,009 B2Syntegon Technology GmbH
- Liquid treatment unit and method14 Jul 2026US 12,678,805 B2Au Environmental Pty Ltd
- Flocculation cyclone device, marine plastic removal system using the same, ship provided with the system, and operation method for the ship16 Jun 2026US 12,654,179 B2Ambitious Technologies, LTD.
- Hydrocyclone separator20 Aug 2026US 2026/0241394 A1Metso Sweden AB
- Compact disc stack cyclone separator20 Aug 2026US 2026/0241395 A1
- Vacuum cleaner13 Aug 2026US 2026/0232155 A1LG Electronics Inc.
- Vacuum cleaner6 Aug 2026US 2026/0224081 A1LG Electronics Inc.
- Method and system for treating fluid30 Jul 2026US 2026/0216738 A1Vortex Corporation
Most cited
By later US patents
- Vacuum cleaner having a cyclone type dust collecting apparatus333US 6,406,505 B1Samsung Kwangju Electronics Co., Ltd. · 2002
- Cyclonic vacuum cleaner ribbed cyclone shroud238US 7,922,794 B2Electrolux Home Care Products, Inc. · 2011
- Handheld cleaning appliance235US 8,156,609 B2Dyson Technology Limited · 2012
- Cyclone separator204US 6,531,066 B1B.H.R. Group Limited · 2003
- Cyclone dust collecting apparatus for a vacuum cleaner185US 6,623,539 B2Samsung Gwangju Electronics Co., Ltd. · 2003