B04C 5/00
Apparatus in which the axial direction of the vortex is reversed
Official title: Apparatus in which the axial direction of the vortex is reversed {(combined with other devices B04C9/00)}
B04C5/00 (Apparatus in which the axial direction of the vortex is reversed) appears on 1,817 US grants and 1,404 published applications in this corpus.
Search patents in B04C- Granted patents
- 1,817
- Published applications
- 1,404
- Assignees
- 929
- Inventors
- 2,877
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 13 | 0 |
| 1978 | 16 | 0 |
| 1979 | 24 | 0 |
| 1980 | 29 | 0 |
| 1981 | 36 | 0 |
| 1982 | 25 | 0 |
| 1983 | 23 | 0 |
| 1984 | 26 | 0 |
| 1985 | 16 | 0 |
| 1986 | 32 | 0 |
| 1987 | 36 | 0 |
| 1988 | 30 | 0 |
| 1989 | 30 | 0 |
| 1990 | 29 | 0 |
| 1991 | 36 | 0 |
| 1992 | 33 | 0 |
| 1993 | 35 | 0 |
| 1994 | 30 | 0 |
| 1995 | 20 | 0 |
| 1996 | 16 | 0 |
| 1997 | 17 | 0 |
| 1998 | 19 | 0 |
| 1999 | 35 | 0 |
| 2000 | 27 | 0 |
| 2001 | 31 | 13 |
| 2002 | 31 | 21 |
| 2003 | 37 | 38 |
| 2004 | 36 | 49 |
| 2005 | 34 | 46 |
| 2006 | 26 | 69 |
| 2007 | 24 | 55 |
| 2008 | 46 | 44 |
| 2009 | 47 | 55 |
| 2010 | 43 | 60 |
| 2011 | 48 | 36 |
| 2012 | 41 | 49 |
| 2013 | 41 | 42 |
| 2014 | 40 | 61 |
| 2015 | 51 | 53 |
| 2016 | 38 | 53 |
| 2017 | 50 | 70 |
| 2018 | 44 | 75 |
| 2019 | 62 | 83 |
| 2020 | 75 | 104 |
| 2021 | 84 | 67 |
| 2022 | 63 | 74 |
| 2023 | 58 | 58 |
| 2024 | 53 | 57 |
| 2025 | 38 | 32 |
| 2026 | 23 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B04C 5/08Vortex chamber constructions818
- B04C 5/14Construction of the underflow ducting689
- B04C 5/24Multiple arrangement thereof613
- B04C 5/02Construction of inlets by which the vortex flow is generated530
- B04C 5/12Construction of the overflow ducting511
- B04C 5/20Apparatus in which the axial direction of the vortex is reversed: with62
- B04C 5/22Apparatus in which the axial direction of the vortex is reversed: with58
Recent patents
- Apparatus and process for separating components of a multiphase hydrocarbon stream15 Sep 2026US 12,734,531 B2Omv Downstream GmbH
- Separation device8 Sep 2026US 12,728,428 B2BUNRI Incorporation
- Low profile bucket lid and dust cyclone25 Aug 2026US 12,714,274 B2Oneida Air Systems, Inc.
- Gas-liquid separation device25 Aug 2026US 12,714,952 B2Hyundai Motor Company
- Centrifugal separator25 Aug 2026US 12,715,009 B2Syntegon Technology GmbH
- Cleaning Device and Dust Collecting Method1 Oct 2026US 2026/0294188 A1Shenzhen Chenbei Technology Co., Ltd.
- Cleaner1 Oct 2026US 2026/0295604 A1LG Electronics Inc.
- Air treatment apparatus1 Oct 2026US 2026/0295605 A1Omachron Intellectual Property Inc.
- Separator for a fluid cleaning device24 Sep 2026US 2026/0284678 A1Dyson Technology Limited
- Purification method for anhydrous aluminum chloride, and gas-phase nano-alumina preparation device and method therefor17 Sep 2026US 2026/0274702 A1Guangzhou Huifu Research Institute Co., Ltd.
Most cited
By later US patents
- Process and apparatus for separating diluents from solid polymers utilizing a two-stage flash and a cyclone separator494US 5,575,979 APhillips Petroleum Company · 1996
- Vacuum cleaner having a cyclone type dust collecting apparatus333US 6,406,505 B1Samsung Kwangju Electronics Co., Ltd. · 2002
- Shroud330US 5,078,761 ANotetry Limited · 1992
- Upright vacuum cleaner with cyclonic air flow295US 6,782,585 B1Fantom Technologies Inc. · 2004
- Apparatus and method for separating particles from a cyclonic fluid flow270US 6,251,296 B1G. B. D. Corp. · 2001