E04F 2011/005
Collapsible
Official title: {collapsible, e.g. folding, telescopic}
E04F2011/005 (Collapsible) appears on 70 US grants and 60 published applications in this corpus.
Search patents in E04F- Granted patents
- 70
- Published applications
- 60
- Assignees
- 43
- Inventors
- 139
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 1 |
| 2005 | 3 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 2 |
| 2014 | 6 | 2 |
| 2015 | 4 | 2 |
| 2016 | 1 | 3 |
| 2017 | 9 | 2 |
| 2018 | 4 | 1 |
| 2019 | 1 | 4 |
| 2020 | 1 | 6 |
| 2021 | 1 | 2 |
| 2022 | 2 | 4 |
| 2023 | 4 | 4 |
| 2024 | 2 | 3 |
| 2025 | 1 | 3 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modular inclined positionable ramp24 Sep 2026US 2026/0286706 A1
- Adjustable ramp board structure24 Sep 2026US 2026/0286708 A1AuGroup (SHENZHEN) Cross-Border Business Co., Ltd.
- Foldable ramp assembly30 Jul 2026US 2026/0218518 A1The Landmark Group, Inc. (DBA National Ramp)
- Folding handrail structure for pet ramps11 Jun 2026US 2026/0157346 A1Shenzhen Huikaida Technology Co., Ltd
- Hinge system16 Apr 2026US 2026/0104070 A1Enable Access (Holdings) Limited
Most cited
By later US patents
- Modular portable stage system72US 6,106,186 AWenger Corporation · 2000
- Modular ramp system64US 5,446,937 APemko Manufacturing Company · 1995
- Modular portable system45US 5,848,501 AWenger Corporation · 1998
- Retractable access ramp38US 6,484,344 B12002
- Stair track device31US 5,137,114 AThe Moving Company · 1992