A47L 11/24
Floor-sweeping machines, motor-driven
A47L11/24 (Floor-sweeping machines, motor-driven) appears on 548 US grants and 789 published applications in this corpus.
Search patents in A47L- Granted patents
- 548
- Published applications
- 789
- Assignees
- 237
- Inventors
- 1,270
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 5 |
| 2003 | 3 | 3 |
| 2004 | 3 | 9 |
| 2005 | 3 | 12 |
| 2006 | 3 | 6 |
| 2007 | 4 | 3 |
| 2008 | 8 | 10 |
| 2009 | 4 | 14 |
| 2010 | 5 | 9 |
| 2011 | 5 | 9 |
| 2012 | 4 | 11 |
| 2013 | 17 | 17 |
| 2014 | 11 | 24 |
| 2015 | 17 | 12 |
| 2016 | 17 | 33 |
| 2017 | 20 | 37 |
| 2018 | 22 | 33 |
| 2019 | 33 | 72 |
| 2020 | 31 | 62 |
| 2021 | 61 | 67 |
| 2022 | 41 | 77 |
| 2023 | 51 | 41 |
| 2024 | 57 | 88 |
| 2025 | 35 | 70 |
| 2026 | 33 | 65 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cleaning robot escape method and device, medium, and electronic apparatus6 Oct 2026US 12,751,594 B2Beijing Roborock Innovation Technology Co., Ltd.
- Anti-tangle roller brush, roller brush mechanism and sweeping robot15 Sep 2026US 12,733,785 B2Linksmart Technology (Zhongshan) Co., Ltd.
- Floor cleaning machine and method for operating a floor cleaning machine8 Sep 2026US 12,727,727 B2Alfred Kärcher GmbH & Co. KG
- Active obstacle crossing control method and system for cleaning robot, and cleaning robot1 Sep 2026US 12,721,491 B2Dreame Innovation Technology (Suzhou) Co., Ltd.
- Pad cleaning system for robotic vacuum cleaners25 Aug 2026US 12,714,275 B2iRobot Corporation
- Mobile cleaning robot with variable cleaning features8 Oct 2026US 2026/0305896 A1iRobot Corporation
- Mobile cleaning robot with actuating gripper10 Sep 2026US 2026/0262893 A1iRobot Corporation
- Automated cleaning implement evaluation systems and methods for floor treatment machines10 Sep 2026US 2026/0262897 A1Nilfisk A/S
- Cleaning module and cleaning apparatus3 Sep 2026US 2026/0256273 A1Beijing Roborock Technology Co., Ltd.
- Zone cleaning control method and apparatus for cleaning robot, and electronic device27 Aug 2026US 2026/0248338 A1Beijing Roborock Technology Co., Ltd.
Most cited
By later US patents
- Autonomous mobile surface treating apparatus289US 6,481,515 B1The Procter & Gamble Company · 2002
- Coverage robot mobility237US 7,441,298 B2iRobot Corporation · 2008
- Autonomous floor mopping apparatus226US 6,741,054 B2Vision Robotics Corporation · 2004
- Robotic extraction cleaner with dusting pad225US 7,320,149 B1BISSELL Homecare, Inc. · 2008
- Combined sweeper and scrubber224US 5,093,955 ATennant Company · 1992