A47L 9/102
Dust separators
Official title: {Dust separators (cyclones A47L9/16)}
A47L9/102 (Dust separators) appears on 303 US grants and 401 published applications in this corpus.
Search patents in A47L- Granted patents
- 303
- Published applications
- 401
- Assignees
- 114
- Inventors
- 664
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 4 | 11 |
| 2003 | 7 | 11 |
| 2004 | 8 | 14 |
| 2005 | 5 | 15 |
| 2006 | 3 | 15 |
| 2007 | 16 | 13 |
| 2008 | 11 | 4 |
| 2009 | 8 | 2 |
| 2010 | 3 | 4 |
| 2011 | 0 | 2 |
| 2012 | 1 | 4 |
| 2013 | 3 | 2 |
| 2014 | 2 | 5 |
| 2015 | 10 | 5 |
| 2016 | 3 | 7 |
| 2017 | 5 | 28 |
| 2018 | 7 | 30 |
| 2019 | 30 | 36 |
| 2020 | 20 | 49 |
| 2021 | 21 | 29 |
| 2022 | 27 | 23 |
| 2023 | 28 | 19 |
| 2024 | 23 | 17 |
| 2025 | 10 | 31 |
| 2026 | 14 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Airbrush vacuum kit22 Sep 2026US 12,740,679 B2
- Surface cleaning apparatus28 Jul 2026US 12,690,732 B2Omachron Intellectual Property Inc.
- Surface cleaning apparatus14 Jul 2026US 12,677,999 B2Omachron Intellectual Property Inc.
- Surface cleaning apparatus14 Jul 2026US 12,678,000 B2Omachron Intellectual Property Inc.
- Handheld vacuum assembly for the capture and collection of insects9 Jun 2026US 12,648,554 B2
- Dirt separator24 Sep 2026US 2026/0283421 A1Dyson Technology Limited
- Separation system for a vacuum cleaner17 Sep 2026US 2026/0272240 A1Dyson Technology Limited
- Vacuum cleaner27 Aug 2026US 2026/0248334 A1
- Surface cleaning apparatus20 Aug 2026US 2026/0240382 A1Omachron Intellectual Property Inc.
- Separation system for a vacuum cleaner20 Aug 2026US 2026/0240389 A1Dyson Technology Limited
Most cited
By later US patents
- Air filter arrangement having first and second filter media dividing a housing and methods343US 6,210,469 B1Donaldson Company, Inc. · 2001
- Cyclone dust collecting device for a vacuum cleaner194US 6,782,583 B2Samsung Kwangju Electronics Co., Ltd. · 2004
- Multi dust-collecting apparatus194US 7,547,338 B2Samsung Gwangju Electronics Co., Ltd. · 2009
- Cyclone-type dust-collecting apparatus for use in a vacuum cleaner188US 6,833,015 B2Samsung Gwangju Electronics Co., Ltd. · 2004
- Fluid/particle separator unit and method for separating particles from a flowing fluid147US 4,382,804 A1983