E04G 23/08
Wrecking of buildings
Official title: Wrecking of buildings (of fences E04H17/26; {Demolition agents based on cementitious or like materials C04B41/0009})
E04G23/08 (Wrecking of buildings) appears on 323 US grants and 246 published applications in this corpus.
Search patents in E04G- Granted patents
- 323
- Published applications
- 246
- Assignees
- 161
- Inventors
- 529
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 8 | 0 |
| 1989 | 5 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 1 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 2 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 2 |
| 2002 | 2 | 2 |
| 2003 | 7 | 6 |
| 2004 | 1 | 6 |
| 2005 | 5 | 11 |
| 2006 | 7 | 18 |
| 2007 | 12 | 13 |
| 2008 | 3 | 5 |
| 2009 | 5 | 13 |
| 2010 | 4 | 11 |
| 2011 | 14 | 12 |
| 2012 | 10 | 12 |
| 2013 | 9 | 7 |
| 2014 | 16 | 8 |
| 2015 | 4 | 10 |
| 2016 | 4 | 5 |
| 2017 | 5 | 9 |
| 2018 | 6 | 12 |
| 2019 | 10 | 10 |
| 2020 | 10 | 11 |
| 2021 | 9 | 18 |
| 2022 | 16 | 14 |
| 2023 | 9 | 10 |
| 2024 | 15 | 10 |
| 2025 | 14 | 7 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04G 23/082Using shears, breakers, jaws and the like143
- E04G 2023/085Crowbars specially adapted for wrecking wooden buildingsIndexing code50
- E04G 2023/086Of tanks, reservoirs or the likeIndexing code50
- E04G 23/081Using hydrodemolition13
- E04G 2023/087Of chimneys, smoke stacks or the likeIndexing code11
- E04G 2023/088Of window or door framesIndexing code7
- E04G 23/083Using vaporising wire technique4
- E04G 23/084Using breaker balls or the like4
Recent patents
- Electrically-driven stone material crushing tool24 Mar 2026US 12,582,993 B2Makita Corporation
- Dual-headed pry tool with rotatable head17 Mar 2026US 12,577,797 B2Tang Chou Industrial Co., Ltd.
- Impactor apparatus operated from rotorcraft11 Nov 2025US 12,466,706 B2Fabrications Tjd Inc.
- Hydrodemolition apparatus for overhanging inclined surfaces11 Nov 2025US 12,467,270 B2Mac & Mac Hydrodemolition Inc.
- Tile removal assembly30 Sep 2025US 12,428,862 B2
- Autonomous or Manual Working Device, System, and Method for at Least Partially Automatically Operating an Object13 Aug 2026US 2026/0233405 A1Robert Bosch GmbH
- Floor Cutting Tool and Uses and Methods Thereof26 Mar 2026US 2026/0084329 A1
- Hydrodemolition apparatus for overhanging inclined surfaces12 Mar 2026US 2026/0071450 A1Mac & Mac Hydrodemolition Inc.
- Stripping device, stripping method, and program8 Jan 2026US 2026/0009246 A1Nippon Telegraph and Telephone Corporation
- Demolition Machine30 Oct 2025US 2025/0333969 A1LAG Equipment
Most cited
By later US patents
- Cutting head for removing material with a high velocity jet of working liquid60US 4,761,039 AHydro-Ergon Corporation · 1988
- Breaking equipment59US 5,385,311 AOhyodo Komatsu Co., Ltd. · 1995
- Demolition tool for a hydraulic excavator56US 5,060,378 ALaBounty Manufacturing, Inc. · 1991
- Metal demolition shear51US 5,187,868 A1993
- Demolition tools with jaws having replaceable working surfaces51US 5,474,242 AThe Stanley Works · 1995