A47L 11/4052
Movement of the tools or the like perpendicular to the cleaning surface
Official title: {Movement of the tools or the like perpendicular to the cleaning surface}
A47L11/4052 (Movement of the tools or the like perpendicular to the cleaning surface) appears on 472 US grants and 411 published applications in this corpus.
Search patents in A47L- Granted patents
- 472
- Published applications
- 411
- Assignees
- 220
- Inventors
- 995
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 10 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 13 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 3 |
| 2002 | 7 | 12 |
| 2003 | 10 | 5 |
| 2004 | 2 | 10 |
| 2005 | 3 | 13 |
| 2006 | 9 | 11 |
| 2007 | 2 | 5 |
| 2008 | 8 | 4 |
| 2009 | 5 | 14 |
| 2010 | 7 | 4 |
| 2011 | 7 | 4 |
| 2012 | 5 | 6 |
| 2013 | 4 | 14 |
| 2014 | 9 | 12 |
| 2015 | 12 | 13 |
| 2016 | 9 | 13 |
| 2017 | 12 | 11 |
| 2018 | 18 | 19 |
| 2019 | 13 | 25 |
| 2020 | 13 | 17 |
| 2021 | 24 | 26 |
| 2022 | 13 | 34 |
| 2023 | 20 | 33 |
| 2024 | 27 | 47 |
| 2025 | 19 | 22 |
| 2026 | 11 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- SLAM robot and a paired application thereof15 Sep 2026US 12,736,962 B1AI Incorporated
- Floor cleaning machine and method for operating a floor cleaning machine8 Sep 2026US 12,727,727 B2Alfred Kärcher GmbH & Co. KG
- Hand-guided floor cleaning machine with a suction foot mount25 Aug 2026US 12,714,279 B2Hako GmbH
- Cleaning apparatus11 Aug 2026US 12,702,263 B2Beijing Roborock Technology Co., Ltd.
- Self-actuated cleaning head for an autonomous vacuum21 Jul 2026US 12,685,418 B2Matic Robots, Inc.
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- Residual-water-stain recovery method and apparatus, robot, and storage medium8 Oct 2026US 2026/0305897 A1Shenzhen Pudu Technology Co., Ltd.
- Method for controlling robot cleaner, and robot cleaner8 Oct 2026US 2026/0305901 A1Beijing Roborock Innovation Technology Co., Ltd.
- Robot cleaner and robot cleaner system1 Oct 2026US 2026/0294196 A1LG Electronics Inc.
- Cleaning robot24 Sep 2026US 2026/0283429 A1Beijing Roborock Technology Co., Ltd.
Most cited
By later US patents
- Cleaning robot276US 5,815,880 AMinolta Co., Ltd. · 1998
- Running and working robot not susceptible to damage at a coupling unit between running unit and working unit218US 5,991,951 AMinolta Co., Ltd. · 1999
- Low profile scrubber192US 5,319,828 ATennant Company · 1994
- Hard and soft floor surface cleaning apparatus190US 5,455,982 AAdvance Machine Company · 1995
- Floor cleaner188US 4,956,891 ACastex Industries, Inc. · 1990