E04C 5/0609
Closed cages composed of two or more coacting cage parts
Official title: {Closed cages composed of two or more coacting cage parts, e.g. transversally hinged or nested parts}
E04C5/0609 (Closed cages composed of two or more coacting cage parts) appears on 35 US grants and 39 published applications in this corpus.
Search patents in E04C- Granted patents
- 35
- Published applications
- 39
- Assignees
- 26
- Inventors
- 77
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 3 |
| 2017 | 0 | 1 |
| 2018 | 1 | 4 |
| 2019 | 5 | 8 |
| 2020 | 5 | 2 |
| 2021 | 2 | 4 |
| 2022 | 2 | 2 |
| 2023 | 2 | 3 |
| 2024 | 3 | 2 |
| 2025 | 3 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Coupling structure25 Aug 2026US 12,716,236 B2National Applied Research Laboratories
- Reinforcing bar cage connectors and methods of constructing reinforcing bar cages31 Mar 2026US 12,590,460 B2
- Reinforcement element for a diaphragm wall provided with a seal-carrier17 Feb 2026US 12,553,204 B2
- Waffle slab and structures and method of manufacturing the same16 Sep 2025US 12,416,151 B2Ruentex Engineering & Construction Co., Ltd.
- Multi-piece pre-assembled raft foundation and construction method thereof5 Aug 2025US 12,378,743 B2Cheng Chi Steel Co., Ltd
- Method for foldable frp reinforcement system5 Feb 2026US 2026/0035920 A1Tuf-N-Lite, LLC
- Concrete stirrup apparatus, formwork assembly comprising the same and method of forming a concrete reinforced structure8 Jan 2026US 2026/0009227 A1Fab-Form Industries Ltd.
- Reinforcing bar cage connectors and methods of constructing reinforcing bar cages6 Mar 2025US 2025/0075500 A1
- Building System30 Jan 2025US 2025/0034866 A1NXT Building System Pty. Ltd.
- Waffle slab and structures and method of manufacturing the same4 Apr 2024US 2024/0109224 A1Ruentex Engineering & Construction Co., Ltd.
Most cited
By later US patents
- Deployable structural assemblies, systems for deploying such structural assemblies and related methods43US 7,694,465 B2Alliant Techsystems Inc. · 2010
- Antiseismic spiral stirrups for reinforcement of load bearing structural elements24US 6,293,071 B12001
- Reinforcing cage construction12US 4,031,685 A1977
- Method of manufacturing a reinforcing cage for a concrete post, and a fixture for carrying out the method9US 4,150,475 AA-Betong AB · 1979
- Method of constructing prefabricated steel reinforced concrete (PSRC) column using angle steels and PSRC column using angle steels9US 8,640,419 B2Senvex Co., Ltd. · 2014