E04G 23/002
Arrangements for cleaning building facades
Official title: {Arrangements for cleaning building facades}
E04G23/002 (Arrangements for cleaning building facades) appears on 105 US grants and 127 published applications in this corpus.
Search patents in E04G- Granted patents
- 105
- Published applications
- 127
- Assignees
- 71
- Inventors
- 220
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 3 | 5 |
| 2004 | 0 | 0 |
| 2005 | 2 | 3 |
| 2006 | 3 | 6 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 3 | 4 |
| 2010 | 4 | 5 |
| 2011 | 2 | 8 |
| 2012 | 2 | 2 |
| 2013 | 2 | 4 |
| 2014 | 5 | 3 |
| 2015 | 2 | 5 |
| 2016 | 4 | 6 |
| 2017 | 2 | 8 |
| 2018 | 6 | 11 |
| 2019 | 7 | 5 |
| 2020 | 8 | 7 |
| 2021 | 6 | 7 |
| 2022 | 2 | 6 |
| 2023 | 4 | 5 |
| 2024 | 3 | 10 |
| 2025 | 3 | 3 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cable-driven devices and systems for performing surface operations15 Sep 2026US 12,734,677 B2Dubai Future Foundation
- Devices configured to operate on an angled surface, and associated systems and methods24 Feb 2026US 12,559,946 B2Renovate Robotics, Inc.
- Automated building washing apparatus14 Oct 2025US 12,442,206 B2
- Working system5 Aug 2025US 12,378,783 B2Hangzhou Fuya Science and Technology Co., Ltd.
- Window cleaning system especially for high-rise buildings15 Apr 2025US 12,274,404 B2
- 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
- Autonomous or Manual Working Device, System, and Method for at Least Partially Automatically Operating an Object13 Aug 2026US 2026/0233405 A1Robert Bosch GmbH
- Facade cleaning machine25 Jun 2026US 2026/0176884 A1
- Building maintenance unit with assisted cradle movement21 May 2026US 2026/0139496 A1Alimak Group Management AB
Most cited
By later US patents
- Method for cleaning surface of external wall of building128US 5,505,787 ATotal Service Co., Inc. · 1996
- Washing device mounted on a motor vehicle and comprising a rotary washing arm which delivers jets of pressurized hot water for cleaning various surfaces75US 5,004,156 A1991
- Method and a device for cleaning a surface with a laser59US 5,151,134 AAgence Regionale de Developpements Technologiques · 1992
- Surface traversing apparatus and method52US 6,964,312 B2International Climbing Machines, Inc. · 2005
- Device capable of suction-adhering to a wall surface and moving therealong41US 4,926,957 A1990