A47L 9/0494
Height adjustment of dust-loosening tools
Official title: {Height adjustment of dust-loosening tools}
A47L9/0494 (Height adjustment of dust-loosening tools) appears on 174 US grants and 214 published applications in this corpus.
Search patents in A47L- Granted patents
- 174
- Published applications
- 214
- Assignees
- 74
- Inventors
- 342
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 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 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 4 |
| 2004 | 1 | 4 |
| 2005 | 2 | 4 |
| 2006 | 1 | 6 |
| 2007 | 5 | 3 |
| 2008 | 5 | 11 |
| 2009 | 3 | 9 |
| 2010 | 5 | 9 |
| 2011 | 7 | 4 |
| 2012 | 7 | 4 |
| 2013 | 7 | 11 |
| 2014 | 12 | 8 |
| 2015 | 8 | 6 |
| 2016 | 5 | 3 |
| 2017 | 10 | 15 |
| 2018 | 4 | 10 |
| 2019 | 13 | 10 |
| 2020 | 5 | 12 |
| 2021 | 10 | 16 |
| 2022 | 6 | 11 |
| 2023 | 13 | 15 |
| 2024 | 10 | 15 |
| 2025 | 11 | 9 |
| 2026 | 6 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Self-actuated cleaning head for an autonomous vacuum21 Jul 2026US 12,685,418 B2Matic Robots, Inc.
- Floor cleaner with a movably mounted suction nozzle9 Jun 2026US 12,648,678 B2BSH Hausgeräte GmbH
- Waste bag with absorbent dispersion sachet2 Jun 2026US 12,642,407 B2Matic Robots, Inc.
- Height adjustable self-balancing autonomous floor cleaner19 May 2026US 12,628,995 B2BISSELL Inc.
- L-type partitioning tree17 Mar 2026US 12,581,072 B2Tencent America LLC
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- Mobile cleaning robot with active suspension30 Jul 2026US 2026/0215636 A1iRobot Corporation
- Systems and methods for active suspension for a robotic vacuum removable cleaning pad9 Jul 2026US 2026/0191375 A1SharkNinja Operating LLC
- Systems and methods for active suspension for a robotic cleaning device9 Jul 2026US 2026/0191377 A1SharkNinja Operating LLC
- Systems and methods for active suspension for a robotic cleaning device9 Jul 2026US 2026/0191386 A1SharkNinja Operating LLC
Most cited
By later US patents
- Autonomous floor-cleaning robot453US 6,883,201 B2iRobot Corporation · 2005
- Autonomous floor cleaning robot349US 7,636,982 B2iRobot Corporation · 2009
- Autonomous floor-cleaning robot331US 7,571,511 B2iRobot Corporation · 2009
- Autonomous floor cleaning robot322US 7,448,113 B2iRobert Corporation · 2008
- Nozzle arrangement for a self-guiding vacuum cleaner216US 5,781,960 AAktiebolaget Electrolux · 1998