E04B 5/23
With stiffening ribs or other beam-like formations wholly or partly prefabricated
Official title: with stiffening ribs or other beam-like formations wholly or partly prefabricated (with all load-carrying parts substantially consisting of prefabricated units E04B5/02 {; beams built-up by elements joined in line E04C3/22})
E04B5/23 (With stiffening ribs or other beam-like formations wholly or partly prefabricated) appears on 248 US grants and 203 published applications in this corpus.
Search patents in E04B- Granted patents
- 248
- Published applications
- 203
- Assignees
- 146
- Inventors
- 422
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 2 |
| 2003 | 5 | 2 |
| 2004 | 2 | 9 |
| 2005 | 1 | 14 |
| 2006 | 3 | 3 |
| 2007 | 2 | 4 |
| 2008 | 1 | 4 |
| 2009 | 2 | 7 |
| 2010 | 3 | 6 |
| 2011 | 5 | 8 |
| 2012 | 5 | 10 |
| 2013 | 9 | 4 |
| 2014 | 12 | 10 |
| 2015 | 6 | 6 |
| 2016 | 3 | 8 |
| 2017 | 12 | 5 |
| 2018 | 10 | 12 |
| 2019 | 11 | 21 |
| 2020 | 13 | 11 |
| 2021 | 11 | 14 |
| 2022 | 8 | 13 |
| 2023 | 10 | 6 |
| 2024 | 6 | 10 |
| 2025 | 11 | 7 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Structural module, system, and method3 Mar 2026US 12,565,769 B2NJIP Holding Company LLC
- Timber-concrete composite connector and ductile reinforcement chair30 Dec 2025US 12,509,882 B2Som Iw Holdings, LLC
- Method for horizontal leveling coupling between concrete foundation and wooden vertical beams4 Nov 2025US 12,460,405 B2Industry-Academic Cooperation Foundation, Dankook University
- Method and arrangement for supporting a floor element on a beam and beam30 Sep 2025US 12,428,838 B2Peikko Group Oy
- Armoured joint—anti-skew stake bracket26 Aug 2025US 12,398,571 B2Illinois Tool Works Inc.
- Timber-concrete composite connector and ductile reinforcement chair27 Aug 2026US 2026/0250952 A1Som Iw Holdings, LLC
- Structural module, system, and method18 Jun 2026US 2026/0168228 A1Nj IP Holding Company LLC
- Waffle slab structure, floor structure and method for constructing floor structure23 Apr 2026US 2026/0110175 A1Ruentex Engineering & Construction Co., Ltd.
- Plugs, Wood-Concrete Composite Element and Process26 Mar 2026US 2026/0085717 A1Adolf Wirth GmbH & Co. KG
- System for Forming Ventilated Crawl Spaces or Interspaces or Elevated Platforms Composed by Dome-Shaped Formwork Elements Supported on Supporting Tubes Resting on a Foundation or on a Surface19 Feb 2026US 2026/0049488 A1Daliform Group S.R.L.
Most cited
By later US patents
- Building panel assembly118US 4,885,884 A1989
- Building construction system101US 6,151,858 ASimple Building Systems · 2000
- Building wall construction71US 4,276,730 A1981
- Steel joist and concrete floor system64US 5,941,035 AMega Building System Ltd. · 1999
- Clip connector for joining columns and beams to concrete63US 5,482,395 AMenlo Park Enterprises Ltd. · 1996