E04F 11/068
Telescopic
Official title: {telescopic}
E04F11/068 (Telescopic) appears on 20 US grants and 21 published applications in this corpus.
Search patents in E04F- Granted patents
- 20
- Published applications
- 21
- Assignees
- 11
- Inventors
- 21
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 2 | 3 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 3 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Adaptive supporting structure of stairway for accessing space above or below an elevated structure13 Jan 2026US 12,523,042 B1
- Attic stair apparatus22 Apr 2025US 12,281,477 B2
- Attic stair apparatus18 Feb 2025US 12,227,950 B2
- Motorized system on stairway for accessing space above or below an elevated structure24 Dec 2024US 12,173,511 B1
- Telescopic staircase system and uses thereof12 Sep 2023US 11,753,829 B2Metaltech-Omega Inc.
- Lifting mechanism for scissor attic stairs, attic stairs, and method of lifting attic stairs using a lifting mechanism10 Apr 2025US 2025/0116115 A1Fakro Pp Sp. Z O.O.
- Attic stair apparatus13 Mar 2025US 2025/0084643 A1
- Attic stair apparatus13 Jun 2024US 2024/0191509 A1
- Attic Door and Access Ladder Hand Tool3 Nov 2022US 2022/0346571 A1
- Stair assembly16 Jun 2022US 2022/0185189 A1Wildcat Cable Solutions, LLC
Most cited
By later US patents
- Motorized access apparatus for elevated areas19US 6,866,118 B12005
- Tubular access ladder and method12US 7,967,110 B2Werner Co. · 2011
- Method and apparatus for providing a fire escape for a multi-story building11US 5,103,934 A1992
- Tubular access ladder and method10US 8,348,015 B2Werner Co. · 2013
- Access ladder and method4US 7,806,233 B2Werner Co. · 2010