E04F 17/005
Lift shafts
Official title: {Lift shafts}
E04F17/005 (Lift shafts) appears on 49 US grants and 38 published applications in this corpus.
Search patents in E04F- Granted patents
- 49
- Published applications
- 38
- Assignees
- 22
- Inventors
- 81
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 4 |
| 2013 | 0 | 0 |
| 2014 | 2 | 0 |
| 2015 | 3 | 1 |
| 2016 | 1 | 0 |
| 2017 | 2 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 3 | 4 |
| 2021 | 1 | 4 |
| 2022 | 0 | 3 |
| 2023 | 3 | 2 |
| 2024 | 4 | 4 |
| 2025 | 3 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Component composed assembly of steel structure for lifting equipment27 Jan 2026US 12,534,342 B2
- Method for creating an elevator shaft of an elevator system13 Jan 2026US 12,522,476 B2
- Method for constructing an elevator, and elevator16 Dec 2025US 12,497,267 B2Gebhardt Foerdertechnik GmbH
- Elevator trench drain2 Sep 2025US 12,404,683 B2Zurn Water, LLC
- Glass elevator innovations21 Jan 2025US 12,202,706 B2
- Method for Creating a Multi-Floor Building Comprising an Elevator System1 Oct 2026US 2026/0296837 A1Inventio AG
- Platform for an elevator system for a building which is under construction6 Aug 2026US 2026/0225855 A1Inventio AG
- Pre-Cast Elevator Pit and Sump Pit30 Jul 2026US 2026/0218525 A1County Prestress and Precast, LLC
- Universal elevator18 Sep 2025US 2025/0289685 A1Thoma Aufzuge GmbH
- Method for creating an elevator shaft of an elevator system28 Nov 2024US 2024/0391738 A1Inventio AG
Most cited
By later US patents
- Interior shaft wall construction153US 5,950,385 A1999
- Use of fibrous mat-faced gypsum board in shaft wall assemblies and improved fire resistant board80US 5,148,645 AGeorgia-Pacific Corporation · 1992
- Stud for construction of seismic and fire resistant shaft walls68US 6,381,913 B22002
- Shaft wall and horizontal metal stud therefor50US 5,724,784 ANational Gypsum Company · 1998
- Vertical post assembly37US 5,475,961 ANational Gypsum Company · 1995