E04F 11/1041
Having means to adjust the height, the depth and/or the slope of
Official title: {having means to adjust the height, the depth and/or the slope of the stair steps (E04F11/1042 - E04F11/116 take precedence)}
E04F11/1041 (Having means to adjust the height, the depth and/or the slope of) appears on 53 US grants and 39 published applications in this corpus.
Search patents in E04F- Granted patents
- 53
- Published applications
- 39
- Assignees
- 25
- Inventors
- 85
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 3 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 2 | 1 |
| 2012 | 0 | 2 |
| 2013 | 2 | 4 |
| 2014 | 0 | 0 |
| 2015 | 3 | 2 |
| 2016 | 3 | 1 |
| 2017 | 2 | 2 |
| 2018 | 0 | 1 |
| 2019 | 2 | 2 |
| 2020 | 3 | 3 |
| 2021 | 2 | 2 |
| 2022 | 1 | 3 |
| 2023 | 1 | 3 |
| 2024 | 4 | 1 |
| 2025 | 3 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reinforced adjustable stair tray27 Jan 2026US 12,534,919 B2Fortress Iron, LP
- Staircase with instrumented steps with lifting actuator for assisted ascent or descent13 Jan 2026US 12,523,043 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Narrow ingress and egress step assembly and methods for accessing lifted boat in a covered dock14 Oct 2025US 12,442,249 B2
- Staircase with adjustable height risers25 Mar 2025US 12,258,764 B2
- Floating modular stair system18 Mar 2025US 12,252,886 B2PrimeSource Building Products, Inc.
- A construction site staircase assembly and installation method therefor3 Jul 2025US 2025/0215711 A1
- Reinforced adjustable stair tray26 Jun 2025US 2025/0207405 A1Fortress Iron, LP
- Modular Stairs20 Feb 2025US 2025/0059770 A1
- Staircase with adjustable height risers29 Aug 2024US 2024/0287811 A1
- Staircase with instrumented steps with lifting actuator for assisted ascent or descent14 Dec 2023US 2023/0399852 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
Most cited
By later US patents