A47L 11/00
Machines for cleaning floors, carpets, furniture, walls, or wall coverings
A47L11/00 (Machines for cleaning floors, carpets, furniture, walls, or wall coverings) appears on 4,938 US grants and 5,507 published applications in this corpus.
Search patents in A47L- Granted patents
- 4,938
- Published applications
- 5,507
- Assignees
- 1,202
- Inventors
- 7,556
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 41 | 0 |
| 1977 | 31 | 0 |
| 1978 | 51 | 0 |
| 1979 | 45 | 0 |
| 1980 | 51 | 0 |
| 1981 | 38 | 0 |
| 1982 | 51 | 0 |
| 1983 | 33 | 0 |
| 1984 | 36 | 0 |
| 1985 | 37 | 0 |
| 1986 | 32 | 0 |
| 1987 | 39 | 0 |
| 1988 | 38 | 0 |
| 1989 | 56 | 0 |
| 1990 | 53 | 0 |
| 1991 | 36 | 0 |
| 1992 | 50 | 0 |
| 1993 | 42 | 0 |
| 1994 | 52 | 0 |
| 1995 | 58 | 0 |
| 1996 | 61 | 0 |
| 1997 | 66 | 0 |
| 1998 | 65 | 0 |
| 1999 | 79 | 0 |
| 2000 | 74 | 0 |
| 2001 | 61 | 24 |
| 2002 | 48 | 67 |
| 2003 | 65 | 79 |
| 2004 | 36 | 83 |
| 2005 | 44 | 106 |
| 2006 | 48 | 111 |
| 2007 | 55 | 88 |
| 2008 | 48 | 104 |
| 2009 | 46 | 92 |
| 2010 | 78 | 89 |
| 2011 | 68 | 85 |
| 2012 | 65 | 102 |
| 2013 | 118 | 155 |
| 2014 | 94 | 187 |
| 2015 | 118 | 163 |
| 2016 | 147 | 238 |
| 2017 | 155 | 221 |
| 2018 | 179 | 267 |
| 2019 | 244 | 356 |
| 2020 | 246 | 362 |
| 2021 | 275 | 438 |
| 2022 | 308 | 408 |
| 2023 | 340 | 411 |
| 2024 | 332 | 497 |
| 2025 | 273 | 406 |
| 2026 | 232 | 368 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A47L 11/40Parts or details of machines not provided for in groups a47l11/02 -4,707
- A47L 11/02Floor surfacing or polishing machines1,043
- A47L 11/29Floor-scrubbing machines characterised by means for taking-up dirty liquid1,015
- A47L 11/34Machines for treating carpets in position by liquid, foam, or vapour992
- A47L 11/28Floor-scrubbing machines, motor-driven619
- A47L 11/24Floor-sweeping machines, motor-driven548
- A47L 11/32Carpet-sweepers238
- A47L 11/38Machines, specially adapted for cleaning walls, ceilings, roofs, or the like126
Recent patents
- Hair cutting assembly and cleaning apparatus6 Oct 2026US 12,751,588 B2Jiangsu Midea Cleaning Appliances Co., Ltd.
- Buffer stain applicator apparatus6 Oct 2026US 12,751,593 B1
- Cleaning robot escape method and device, medium, and electronic apparatus6 Oct 2026US 12,751,594 B2Beijing Roborock Innovation Technology Co., Ltd.
- Robot cleaner6 Oct 2026US 12,751,595 B2Samsung Electronics Co., Ltd.
- Cleaning apparatus6 Oct 2026US 12,751,596 B2Suzhou Eup Electric Co. Ltd.
- User-prompted cleaning by autonomous vacuum8 Oct 2026US 2026/0305895 A1Matic Robots, Inc. (fka Matician, Inc.)
- Mobile cleaning robot with variable cleaning features8 Oct 2026US 2026/0305896 A1iRobot Corporation
- Residual-water-stain recovery method and apparatus, robot, and storage medium8 Oct 2026US 2026/0305897 A1Shenzhen Pudu Technology Co., Ltd.
- Robotic system for facade operation of a building facade and the method thereof8 Oct 2026US 2026/0305898 A1Skybotics Technology Limited
- Method for constructing a map while performing work8 Oct 2026US 2026/0305899 A1Bobsweep USA
Most cited
By later US patents
- Home cleaning robot729US 6,459,955 B1The Procter & Gamble Company · 2002
- Mobile robots and their control system518US 6,532,404 B22003
- Mobile work robot system511US 5,959,423 AMinolta Co., Ltd. · 1999
- Autonomous floor-cleaning robot453US 6,883,201 B2iRobot Corporation · 2005
- Automatic machine and device for floor dusting439US 5,787,545 A1998