B04C 2009/004
Combinations with other devices: with internal filters, in the cyclone chamber or
Official title: {with internal filters, in the cyclone chamber or in the vortex finder}
B04C2009/004 (Combinations with other devices: with internal filters, in the cyclone chamber or) appears on 246 US grants and 245 published applications in this corpus.
Search patents in B04C- Granted patents
- 246
- Published applications
- 245
- Assignees
- 148
- Inventors
- 398
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 5 |
| 2002 | 8 | 4 |
| 2003 | 6 | 7 |
| 2004 | 4 | 9 |
| 2005 | 5 | 14 |
| 2006 | 7 | 6 |
| 2007 | 3 | 10 |
| 2008 | 5 | 6 |
| 2009 | 6 | 6 |
| 2010 | 8 | 8 |
| 2011 | 13 | 9 |
| 2012 | 5 | 6 |
| 2013 | 3 | 4 |
| 2014 | 4 | 9 |
| 2015 | 14 | 11 |
| 2016 | 6 | 7 |
| 2017 | 3 | 15 |
| 2018 | 3 | 19 |
| 2019 | 18 | 16 |
| 2020 | 16 | 19 |
| 2021 | 19 | 12 |
| 2022 | 6 | 12 |
| 2023 | 10 | 10 |
| 2024 | 11 | 9 |
| 2025 | 6 | 4 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Filter device for removing particles from a fluid28 Jul 2026US 12,691,458 B2Mst Nl B.V.
- Compact disc stack cyclone separator19 May 2026US 12,629,701 B2
- Surface cleaning apparatus23 Dec 2025US 12,502,045 B2
- Continuous trichome separation11 Nov 2025US 12,465,877 B1Amalgam LLC
- Filter device for removing particles from a fluid1 Oct 2026US 2026/0295603 A1Mst Nl B.V.
- Cleaner1 Oct 2026US 2026/0295604 A1LG Electronics Inc.
- Separator for a fluid cleaning device24 Sep 2026US 2026/0284678 A1Dyson Technology Limited
- Compact disc stack cyclone separator20 Aug 2026US 2026/0241395 A1
- Dust collecting apparatus, vacuum cleaner, and cleaning apparatus16 Jul 2026US 2026/0198738 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Upright vacuum cleaner with cyclonic air flow295US 6,782,585 B1Fantom Technologies Inc. · 2004
- Cyclonic vacuum cleaner ribbed cyclone shroud238US 7,922,794 B2Electrolux Home Care Products, Inc. · 2011
- Upright vacuum cleaner with cyclonic air flow152US 6,070,291 ARoyal Appliance Mfg. Co. · 2000
- Cyclonic dirt separation module145US 7,247,181 B2BISSELL Homecare, Inc. · 2007
- Upright vacuum cleaner with cyclonic airflow143US 6,260,234 B1Royal Appliance Mfg. Co. · 2001