E04G 3/32
Hoisting devices
Official title: Hoisting devices; Safety devices
E04G3/32 (Hoisting devices) appears on 87 US grants and 83 published applications in this corpus.
Search patents in E04G- Granted patents
- 87
- Published applications
- 83
- Assignees
- 52
- Inventors
- 170
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 3 |
| 2010 | 3 | 2 |
| 2011 | 0 | 2 |
| 2012 | 2 | 3 |
| 2013 | 3 | 8 |
| 2014 | 5 | 4 |
| 2015 | 3 | 7 |
| 2016 | 1 | 1 |
| 2017 | 3 | 2 |
| 2018 | 7 | 7 |
| 2019 | 1 | 9 |
| 2020 | 11 | 6 |
| 2021 | 4 | 11 |
| 2022 | 6 | 5 |
| 2023 | 3 | 1 |
| 2024 | 4 | 5 |
| 2025 | 5 | 0 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Falling prevention structure for attached lift scaffold21 Apr 2026US 12,607,025 B2
- Construction elevator device13 Jan 2026US 12,522,475 B2Hitachi, Ltd.
- Suspension work platform hoist system4 Nov 2025US 12,460,432 B2Sky Climber, LLC
- Elevator construction arrangement and a method7 Oct 2025US 12,434,945 B2Kone Corporation
- Building site device having a climbing formwork and an elevator system9 Sep 2025US 12,410,625 B2Inventio AG
- Self-climbing platform and method9 Jul 2026US 2026/0191187 A1
- Exterior wall repair method9 Jul 2026US 2026/0192465 A1Share-RIZ Co.,Ltd.
- Building maintenance unit with assisted cradle movement21 May 2026US 2026/0139496 A1Alimak Group Management AB
- Work stage apparatus22 Jan 2026US 2026/0022576 A1
- Elevator construction arrangement and a method19 Dec 2024US 2024/0417220 A1Kone Corporation
Most cited
By later US patents
- Robot for a work on a wall surface32US 4,993,913 ANihon Biso Co., Ltd. · 1991
- Movable vacuum secured apparatus for inclined or vertical surfaces18US 3,991,842 AChicago Bridge & Iron Company · 1976
- Scaffolding14US 10,125,505 B2Wls Intellectual Property Limited · 2018
- Tension sensing device14US 4,462,484 APlatforms and Power, Inc. · 1984
- Rope traction device with connected locking units14US 5,738,339 ANihon Biso Co., Ltd. · 1998