A47L 9/16
Arrangement or disposition of cyclones or other devices with centrifugal action
A47L9/16 (Arrangement or disposition of cyclones or other devices with centrifugal action) appears on 1,940 US grants and 2,490 published applications in this corpus.
Search patents in A47L- Granted patents
- 1,940
- Published applications
- 2,490
- Assignees
- 326
- Inventors
- 2,012
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 9 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 25 | 13 |
| 2002 | 27 | 49 |
| 2003 | 42 | 43 |
| 2004 | 31 | 70 |
| 2005 | 33 | 67 |
| 2006 | 36 | 98 |
| 2007 | 39 | 96 |
| 2008 | 53 | 72 |
| 2009 | 74 | 83 |
| 2010 | 86 | 82 |
| 2011 | 63 | 38 |
| 2012 | 46 | 77 |
| 2013 | 53 | 48 |
| 2014 | 64 | 94 |
| 2015 | 81 | 66 |
| 2016 | 70 | 120 |
| 2017 | 74 | 160 |
| 2018 | 82 | 146 |
| 2019 | 156 | 164 |
| 2020 | 153 | 175 |
| 2021 | 114 | 138 |
| 2022 | 137 | 117 |
| 2023 | 119 | 139 |
| 2024 | 118 | 137 |
| 2025 | 59 | 105 |
| 2026 | 48 | 93 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Surface cleaning apparatus29 Sep 2026US 12,745,882 B2Omachron Intellectual Property Inc.
- Dust collection bin and cleaning apparatus comprising same29 Sep 2026US 12,745,883 B2Samsung Electronics Co., Ltd.
- Dust collector, vacuum cleaner, and cleaning device22 Sep 2026US 12,740,680 B2Samsung Electronics Co., Ltd.
- Cleaner system22 Sep 2026US 12,740,681 B2LG Electronics Inc.
- Surface cleaning apparatus8 Sep 2026US 12,727,731 B2Omachron Intellectual Property Inc.
- Surface cleaning apparatus1 Oct 2026US 2026/0294184 A1Omachron Intellectual Property Inc.
- Cleaning Device and Dust Collecting Method1 Oct 2026US 2026/0294188 A1Shenzhen Chenbei Technology Co., Ltd.
- Surface cleaning apparatus1 Oct 2026US 2026/0294189 A1Omachron Intellectual Property Inc.
- Cyclonic separator1 Oct 2026US 2026/0294190 A1Milwaukee Electric Tool Corporation
- Vacuum cleaner having two stages of spiral separation structures1 Oct 2026US 2026/0294191 A1
Most cited
By later US patents
- Cyclonic back-pack vacuum cleaner370US 5,267,371 AIona Appliances Inc. · 1993
- 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
- Vacuum cleaner327US 6,553,612 B1Dyson Limited · 2003
- Vacuum cleaning appliances322US 4,373,228 A1983