A47L 11/28
Floor-scrubbing machines, motor-driven
Official title: Floor-scrubbing machines, motor-driven (A47L11/29 takes precedence)
A47L11/28 (Floor-scrubbing machines, motor-driven) appears on 619 US grants and 908 published applications in this corpus.
Search patents in A47L- Granted patents
- 619
- Published applications
- 908
- Assignees
- 228
- Inventors
- 1,419
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 5 | 7 |
| 2003 | 2 | 5 |
| 2004 | 1 | 4 |
| 2005 | 3 | 7 |
| 2006 | 4 | 12 |
| 2007 | 1 | 4 |
| 2008 | 8 | 14 |
| 2009 | 9 | 8 |
| 2010 | 2 | 11 |
| 2011 | 5 | 5 |
| 2012 | 7 | 13 |
| 2013 | 15 | 24 |
| 2014 | 14 | 22 |
| 2015 | 18 | 35 |
| 2016 | 22 | 27 |
| 2017 | 20 | 19 |
| 2018 | 25 | 43 |
| 2019 | 31 | 69 |
| 2020 | 33 | 61 |
| 2021 | 50 | 95 |
| 2022 | 49 | 99 |
| 2023 | 65 | 89 |
| 2024 | 71 | 100 |
| 2025 | 53 | 64 |
| 2026 | 54 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Robot cleaner6 Oct 2026US 12,751,595 B2Samsung Electronics Co., Ltd.
- AI robot cleaner and robot system having the same29 Sep 2026US 12,745,886 B2LG Electronics Inc.
- Surface cleaning system, surface cleaning device and control method thereof22 Sep 2026US 12,740,638 B2Tineco Intelligent Technology Co., Ltd.
- SLAM robot and a paired application thereof15 Sep 2026US 12,736,962 B1AI Incorporated
- Cleaning robot system8 Sep 2026US 12,727,732 B2Positec Power Tools (Suzhou) Co., Ltd.
- Method for constructing a map while performing work8 Oct 2026US 2026/0305899 A1Bobsweep USA
- Method for controlling robot cleaner, and robot cleaner8 Oct 2026US 2026/0305901 A1Beijing Roborock Innovation Technology Co., Ltd.
- Base Station, and Robot Cleaning System and Control Method Therefor8 Oct 2026US 2026/0305904 A1Positec Power Tools (Suzhou) Co., Ltd.
- Cleaning system comprising a user-operated cleaning device, and method for operating a cleaning system17 Sep 2026US 2026/0272245 A1Alfred Kärcher GmbH & Co. KG
- Cleaning system comprising a user-operated cleaning device, and method for operating a cleaning system17 Sep 2026US 2026/0272246 A1Alfred Kärcher GmbH & Co. KG
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
- 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