A47L 11/38
Machines, specially adapted for cleaning walls, ceilings, roofs, or the like
A47L11/38 (Machines, specially adapted for cleaning walls, ceilings, roofs, or the like) appears on 126 US grants and 110 published applications in this corpus.
Search patents in A47L- Granted patents
- 126
- Published applications
- 110
- Assignees
- 81
- Inventors
- 242
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 1 |
| 2003 | 5 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 6 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 2 | 3 |
| 2011 | 1 | 3 |
| 2012 | 1 | 1 |
| 2013 | 0 | 4 |
| 2014 | 0 | 5 |
| 2015 | 7 | 8 |
| 2016 | 6 | 3 |
| 2017 | 2 | 6 |
| 2018 | 5 | 8 |
| 2019 | 6 | 10 |
| 2020 | 8 | 9 |
| 2021 | 9 | 9 |
| 2022 | 3 | 5 |
| 2023 | 9 | 7 |
| 2024 | 2 | 8 |
| 2025 | 3 | 2 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic apparatus for bathroom fixtures and devices26 May 2026US 12,635,843 B2Kohler Co.
- Surface cleaning apparatus with different cleaning configurations3 Feb 2026US 12,539,004 B2Omachron Intellectual Property Inc.
- Building exterior wall cleaning robot27 Jan 2026US 12,533,792 B2Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
- Self-propelled device20 May 2025US 12,303,081 B2Hobot Technology Inc.
- Floor machine with attachment system4 Mar 2025US 12,239,271 B1Square Scrub Holdings, LLC
- Robotic system for facade operation of a building facade and the method thereof8 Oct 2026US 2026/0305898 A1Skybotics Technology Limited
- Automated Cleaning Apparatus and Method for Use on Vertical Surfaces10 Sep 2026US 2026/0262895 A1P16 Holdings, LLC
- Device for cleaning surfaces13 Aug 2026US 2026/0232104 A1
- Magnetic apparatus for bathroom fixtures and devices13 Aug 2026US 2026/0232162 A1Kohler Co.
- Facade cleaning machine25 Jun 2026US 2026/0176884 A1
Most cited
By later US patents
- Method for cleaning surface of external wall of building128US 5,505,787 ATotal Service Co., Inc. · 1996
- Vacuum cleaner attachment for the wet cleaning of surfaces123US 6,021,545 AVorwerk & Co. Interholding GmbH · 2000
- Mobile cyclonic power wash system with water reclamation and rotary union53US 5,500,976 ACyclone Surface Cleaning, Inc. · 1996
- Battery powered tile cleaning apparatus47US 5,511,269 A1996
- Surface cleaning apparatus with different cleaning configurations45US 9,066,642 B2G. B. D. Corp. · 2015