E06C 1/52
Ladders in general: with non-rigid longitudinal members
Official title: with non-rigid longitudinal members
E06C1/52 (Ladders in general: with non-rigid longitudinal members) appears on 122 US grants and 71 published applications in this corpus.
Search patents in E06C- Granted patents
- 122
- Published applications
- 71
- Assignees
- 43
- Inventors
- 204
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 8 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 5 | 3 |
| 2003 | 4 | 3 |
| 2004 | 0 | 3 |
| 2005 | 1 | 3 |
| 2006 | 3 | 3 |
| 2007 | 0 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 3 | 2 |
| 2013 | 0 | 4 |
| 2014 | 1 | 2 |
| 2015 | 1 | 6 |
| 2016 | 3 | 1 |
| 2017 | 3 | 4 |
| 2018 | 3 | 2 |
| 2019 | 2 | 6 |
| 2020 | 2 | 3 |
| 2021 | 3 | 4 |
| 2022 | 0 | 3 |
| 2023 | 3 | 3 |
| 2024 | 0 | 2 |
| 2025 | 3 | 1 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Modular, collapsible urban assault ladder23 Jun 2026US 12,662,876 B2Delta Tactical Ladder LLC
- Illuminated marine ladder14 Apr 2026US 12,600,439 B2
- Portable ladder with standoffs27 Jan 2026US 12,534,162 B1
- Portable rope ladder and method30 Dec 2025US 12,509,942 B2
- Rope ladder with two braided ropes16 Dec 2025US 12,497,834 B2Airbus Helicopters Deutschland GmbH
- Climbing device30 Jul 2026US 2026/0218570 A1Siemens Gamesa Renewable Energy A/S
- Non-self-supporting hinged ladder26 Mar 2026US 2026/0084817 A1Government of the United States as Represented by the Secretary of the Air Force
- Aircraft having stowable ladder for cockpit access26 Mar 2026US 2026/0085578 A1Government of the United States as Represented by the Secretary of the Air Force
- Ladder comprising at least one rail and a plurality of rungs6 Feb 2025US 2025/0043632 A1
- Modular, collapsible urban assault ladder13 Jun 2024US 2024/0191573 A1Delta Tactical Ladder LLC
Most cited
By later US patents