A47L 11/4033
Means for cleaning filters
Official title: {Means for cleaning filters}
A47L11/4033 (Means for cleaning filters) appears on 25 US grants and 18 published applications in this corpus.
Search patents in A47L- Granted patents
- 25
- Published applications
- 18
- Assignees
- 17
- Inventors
- 76
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vacuum cleaner and docking station for use with the same12 May 2026US 12,622,561 B2SharkNinja Operating LLC
- Docking station and cleaning system11 Feb 2025US 12,220,100 B2Dreame Innovation Technology (Suzhou) Co., Ltd.
- Vacuum cleaner and docking station for use with the same4 Jun 2024US 11,998,150 B2SharkNinja Operating LLC
- Floor cleaning machine with solid chemical delivery system5 Sep 2023US 11,744,427 B2Betco Corporation
- Vibrating air filter for robotic vacuums27 Jun 2023US 11,684,886 B1AI Incorporated
- Cleaning tool accessory adaptable to an oscillating multi-tool21 May 2026US 2026/0137256 A1
- Vacuum cleaner and docking station for use with the same29 Jan 2026US 2026/0026668 A1SharkNinja Operating LLC
- Cleaning device and control method2 Jan 2025US 2025/0000321 A1Tineco Intelligent Technology Co., Ltd.
- Docking station and cleaning system31 Oct 2024US 2024/0358207 A1Dreame Innovation Technology (Suzhou) Co., Ltd.
- Vacuum cleaner and docking station for use with the same5 Sep 2024US 2024/0292992 A1SharkNinja Operating LLC
Most cited
By later US patents
- Hand-guided sweeping machine156US 4,974,283 AHako-Werke GmbH · 1990
- Floor maintenance machine and method72US 4,586,208 ATennant Company · 1986
- Unattended air cleaning system for surface maintenance machine56US 5,013,333 ATennant Company · 1991
- Walk behind floor maintenance machine53US 4,580,313 ATennant Company · 1986
- Recycling cleaning apparatus49US 4,466,155 A1984