A47L 1/02
Power-driven machines or devices
A47L1/02 (Power-driven machines or devices) appears on 206 US grants and 244 published applications in this corpus.
Search patents in A47L- Granted patents
- 206
- Published applications
- 244
- Assignees
- 120
- Inventors
- 387
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 8 |
| 2004 | 1 | 1 |
| 2005 | 2 | 3 |
| 2006 | 6 | 4 |
| 2007 | 3 | 2 |
| 2008 | 0 | 4 |
| 2009 | 2 | 1 |
| 2010 | 2 | 3 |
| 2011 | 3 | 6 |
| 2012 | 3 | 2 |
| 2013 | 2 | 12 |
| 2014 | 6 | 6 |
| 2015 | 12 | 17 |
| 2016 | 10 | 19 |
| 2017 | 7 | 21 |
| 2018 | 9 | 23 |
| 2019 | 21 | 17 |
| 2020 | 18 | 17 |
| 2021 | 5 | 11 |
| 2022 | 17 | 16 |
| 2023 | 10 | 8 |
| 2024 | 6 | 16 |
| 2025 | 8 | 16 |
| 2026 | 3 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Window washing systems and methods4 Aug 2026US 12,697,003 B2Mirraclear LLC
- Devices configured to operate on an angled surface, and associated systems and methods24 Feb 2026US 12,559,946 B2Renovate Robotics, Inc.
- Building exterior wall cleaning robot27 Jan 2026US 12,533,792 B2Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Cleaning method, window wiping robot, and storage medium25 Nov 2025US 12,478,229 B2Ecovacs Home Service Robotics Co., Ltd.
- Automated building washing apparatus14 Oct 2025US 12,442,206 B2
- Hand carryable surface cleaning apparatus24 Sep 2026US 2026/0283417 A1Omachron Intellectual Property Inc.
- Window cleaning machine having double rolling brushes20 Aug 2026US 2026/0240380 A1Dongguan Enjoy Intelligent Technology Co., Ltd
- Window cleaning machine9 Jul 2026US 2026/0192343 A1Hobot Technology Inc.
- Automatic cleaning apparatus2 Jul 2026US 2026/0182805 A1Beijing Roborock Technology Co., Ltd.
- Cleaning robot, Control Method and Device thereof, and Storage Medium18 Jun 2026US 2026/0169498 A1Qfeeltech (Beijing) Co., Ltd.
Most cited
By later US patents
- Vacuum cleaner attachment for the wet cleaning of surfaces123US 6,021,545 AVorwerk & Co. Interholding GmbH · 2000
- Robotic washing apparatus72US 5,890,250 ASky Robitics, Inc. · 1999
- Drive device for moving a robot or vehicle on flat, inclined or curved surfaces, particularly of a glass construction and robot with drive device58US 5,959,424 AFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V. · 1999
- High-efficiency, portable car washing system46US 5,029,758 A1991
- Cleaning apparatus for roof glazing37US 5,323,508 AAston International Limited · 1994