E06C 1/383
Foldable ladders in which the longitudinal members are brought together on folding
Official title: Foldable ladders in which the longitudinal members are brought together on folding {(E06C9/085 takes precedence)}
E06C1/383 (Foldable ladders in which the longitudinal members are brought together on folding) appears on 109 US grants and 106 published applications in this corpus.
Search patents in E06C- Granted patents
- 109
- Published applications
- 106
- Assignees
- 57
- Inventors
- 172
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 2 |
| 2004 | 4 | 4 |
| 2005 | 3 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 4 |
| 2012 | 2 | 4 |
| 2013 | 3 | 5 |
| 2014 | 5 | 3 |
| 2015 | 5 | 6 |
| 2016 | 3 | 4 |
| 2017 | 2 | 3 |
| 2018 | 3 | 9 |
| 2019 | 7 | 7 |
| 2020 | 4 | 11 |
| 2021 | 5 | 2 |
| 2022 | 2 | 11 |
| 2023 | 2 | 4 |
| 2024 | 3 | 7 |
| 2025 | 10 | 3 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Foldable stair assembly8 Sep 2026US 12,728,899 B2Safesmart LLC
- Ladder foot and ladder therewith19 May 2026US 12,631,068 B2Werner Co.
- Step ladder pivot and lock mechanism21 Apr 2026US 12,607,063 B2Werner Co.
- Switchable locking device31 Mar 2026US 12,590,491 B2
- Safety ladder13 Jan 2026US 12,523,099 B2Chih-Hsueh
- Switchable locking device, and positioning and locking system equipped with switchable locking device23 Jul 2026US 2026/0210181 A1
- Folding step ladder25 Jun 2026US 2026/0176920 A1Suzhou Pica Aluminum Industry Ltd
- Ladder body, ladder joint, and ladder25 Jun 2026US 2026/0176921 A1Suzhou Pica Aluminum Industry Ltd
- Ladder with lockable pivot assembly18 Jun 2026US 2026/0168324 A1Werner Co.
- Ladder18 Jun 2026US 2026/0168325 A1Murphy Ladder LLC
Most cited
By later US patents