E04F 11/1865
Collapsible or portable balustrades
Official title: {Collapsible or portable balustrades}
E04F11/1865 (Collapsible or portable balustrades) appears on 65 US grants and 75 published applications in this corpus.
Search patents in E04F- Granted patents
- 65
- Published applications
- 75
- Assignees
- 35
- Inventors
- 109
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 4 |
| 2004 | 3 | 3 |
| 2005 | 1 | 3 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 1 | 4 |
| 2015 | 1 | 4 |
| 2016 | 4 | 4 |
| 2017 | 6 | 5 |
| 2018 | 3 | 4 |
| 2019 | 4 | 3 |
| 2020 | 2 | 5 |
| 2021 | 5 | 9 |
| 2022 | 4 | 5 |
| 2023 | 7 | 3 |
| 2024 | 1 | 3 |
| 2025 | 6 | 6 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-segment movable railing assembly2 Sep 2025US 12,403,406 B2Universal City Studios LLC
- Multi-segment movable railing assembly15 Jul 2025US 12,357,920 B2Universal City Studios LLC
- Wheelchair ramps, hand railings, and modular accessibility systems incorporating the same27 May 2025US 12,312,813 B2
- Arrangement27 May 2025US 12,312,814 B2Sandvik Mining and Construction Oy
- Guard assemblies29 Apr 2025US 12,286,793 B2
- Removable banister device16 Jul 2026US 2026/0201702 A1
- Stairs and Platform System for Mobile Elevated Shelter25 Sep 2025US 2025/0297481 A1Berg Companies, Inc.
- Wheelchair ramps, hand railings, and modular accessibility systems incorporating the same28 Aug 2025US 2025/0270816 A1
- Arrangement21 Aug 2025US 2025/0263932 A1Sandvik Mining and Construction Oy
- Collapsible guardrails15 May 2025US 2025/0154781 A1The Boeing Company
Most cited
By later US patents
- Portable stairs with adjustable landing platform height82US 6,810,995 B22004
- Handrail gate, hinge coupling and lock43US 6,565,069 B22003
- Handrail assembly28US 5,312,089 A1994
- Assembly of a safety rail for an access hatch24US 6,688,046 B2Kee International Products Inc. · 2004
- Foldable handrail structure21US 4,261,550 A1981