E04G 23/00
Working measures on existing buildings
Official title: Working measures on existing buildings, ({domestic cleaning of walls or floors A47L11/00; grinding floors or walls B24B7/18; removing of wall coverings B44C7/00; removing of paint from surfaces B44D3/16; electrochemical desalination or re-alkalisation C04B41/00}; on foundations E02D35/00, E02D37/00; in connection with insulations E04B; subsequent or finishing work E04F)
E04G23/00 (Working measures on existing buildings) appears on 1,962 US grants and 1,680 published applications in this corpus.
Search patents in E04G- Granted patents
- 1,962
- Published applications
- 1,680
- Assignees
- 938
- Inventors
- 3,272
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 9 | 0 |
| 1978 | 20 | 0 |
| 1979 | 12 | 0 |
| 1980 | 9 | 0 |
| 1981 | 5 | 0 |
| 1982 | 19 | 0 |
| 1983 | 13 | 0 |
| 1984 | 22 | 0 |
| 1985 | 16 | 0 |
| 1986 | 18 | 0 |
| 1987 | 27 | 0 |
| 1988 | 25 | 0 |
| 1989 | 32 | 0 |
| 1990 | 37 | 0 |
| 1991 | 37 | 0 |
| 1992 | 20 | 0 |
| 1993 | 35 | 0 |
| 1994 | 20 | 0 |
| 1995 | 35 | 0 |
| 1996 | 27 | 0 |
| 1997 | 45 | 0 |
| 1998 | 39 | 0 |
| 1999 | 41 | 0 |
| 2000 | 40 | 0 |
| 2001 | 51 | 12 |
| 2002 | 53 | 46 |
| 2003 | 39 | 41 |
| 2004 | 36 | 44 |
| 2005 | 25 | 60 |
| 2006 | 29 | 68 |
| 2007 | 28 | 48 |
| 2008 | 25 | 41 |
| 2009 | 28 | 68 |
| 2010 | 47 | 50 |
| 2011 | 45 | 62 |
| 2012 | 43 | 52 |
| 2013 | 55 | 55 |
| 2014 | 57 | 67 |
| 2015 | 52 | 86 |
| 2016 | 55 | 86 |
| 2017 | 76 | 99 |
| 2018 | 84 | 111 |
| 2019 | 96 | 86 |
| 2020 | 88 | 92 |
| 2021 | 69 | 86 |
| 2022 | 60 | 84 |
| 2023 | 53 | 60 |
| 2024 | 72 | 73 |
| 2025 | 54 | 51 |
| 2026 | 27 | 52 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04G 23/02Repairing1,251
- E04G 23/08Wrecking of buildings323
- E04G 23/006Arrangements for removing of previously fixed floor coverings195
- E04G 23/002Arrangements for cleaning building facades105
- E04G 23/06Separating, lifting, removing of buildings79
- E04G 23/04Propping of endangered or damaged buildings or building parts47
- E04G 23/008Working measures on existing vertical ducts15
Recent patents
- Cable-driven devices and systems for performing surface operations15 Sep 2026US 12,734,677 B2Dubai Future Foundation
- Construction material repair device and methods of using same15 Sep 2026US 12,735,909 B2
- Tool to remove pad from underneath installed or partially removed carpet1 Sep 2026US 12,723,419 B2
- Micro injection flooring repair assembly and method1 Sep 2026US 12,723,420 B2Red Devil, Inc.
- Roof repair apparatus and method25 Aug 2026US 12,716,252 B2
- Robotic system for facade operation of a building facade and the method thereof8 Oct 2026US 2026/0305898 A1Skybotics Technology Limited
- Saw blade assembly for a floor milling tool24 Sep 2026US 2026/0284933 A1Husqvarna AB
- Smart hybrid sealants for concrete cracks and joints, methods of making, and methods of use24 Sep 2026US 2026/0286622 A1
- High Tensile Strength Cementitious Matrix For Use In FRCM Systems17 Sep 2026US 2026/0274749 A1Universite Laval
- A Clamping Device, Detensioning System And a Method Thereof For Clamping An Object Such As Structural Elements Or Tensioning Elements17 Sep 2026US 2026/0275736 A1
Most cited
By later US patents
- Method for cleaning surface of external wall of building128US 5,505,787 ATotal Service Co., Inc. · 1996
- Durable, fire resistant, energy absorbing and cost-effective strengthening systems for structural joints and members119US 9,611,667 B2West Virginia University · 2017
- Durable, fire resistant, energy absorbing and cost-effective strengthening systems for structural joints and members117US 10,100,542 B2West Virginia University · 2018
- Method for installing a stanchion on a tile roof and system therefor111US 7,861,485 B12011
- Vertical joint system and associated surface covering system105US 8,806,832 B2Inotec Global Limited · 2014