E06C 9/14
With non-rigid longitudinal members
Official title: with non-rigid longitudinal members, e.g. rope or chain ladders, ladders of the lazy-tongs type
E06C9/14 (With non-rigid longitudinal members) appears on 90 US grants and 42 published applications in this corpus.
Search patents in E06C- Granted patents
- 90
- Published applications
- 42
- Assignees
- 21
- Inventors
- 148
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 3 |
| 2002 | 3 | 2 |
| 2003 | 2 | 1 |
| 2004 | 0 | 3 |
| 2005 | 1 | 3 |
| 2006 | 2 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 4 |
| 2013 | 0 | 2 |
| 2014 | 0 | 3 |
| 2015 | 3 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 3 |
| 2025 | 3 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modular ladder for stealth cell towers24 Feb 2026US 12,560,027 B2T-Mobile USA, Inc.
- Vehicular ladder system and methods of making and using same24 Jun 2025US 12,337,796 B1Kelly Industries, LLC
- Deployable safety ladder10 Jun 2025US 12,326,042 B1
- Powered retractable ladder27 May 2025US 12,312,047 B2Nautical Structures Industries, Inc.
- Fire exit system15 Aug 2023US 11,725,450 B2
- 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.
- Ladder comprising at least one rail and a plurality of rungs6 Feb 2025US 2025/0043632 A1
- Fire resistant attic stairs12 Dec 2024US 2024/0410179 A1Fakro Pp Sp. Z O.O.
- Flip-over ladder system17 Oct 2024US 2024/0343198 A1
- Modular ladder for stealth cell towers8 Feb 2024US 2024/0044207 A1T-Mobile USA, Inc.
Most cited
By later US patents
- Fire escape device37US 4,161,998 A1979
- Apparatus for installing escape device for slowly lowering a body37US 4,709,783 ALonseal Corporation · 1987
- Escape ladder28US 5,971,105 A1999
- Fire evacuation kit25US 5,664,642 A1997
- Retractable stair system with precision elevation control24US 9,527,448 B1Torklift International Inc. · 2016