E04B 5/043
Having elongated hollow cores
Official title: {having elongated hollow cores}
E04B5/043 (Having elongated hollow cores) appears on 56 US grants and 60 published applications in this corpus.
Search patents in E04B- Granted patents
- 56
- Published applications
- 60
- Assignees
- 39
- Inventors
- 116
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 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 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 5 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 0 | 2 |
| 2010 | 2 | 4 |
| 2011 | 2 | 5 |
| 2012 | 3 | 3 |
| 2013 | 1 | 6 |
| 2014 | 6 | 4 |
| 2015 | 2 | 5 |
| 2016 | 4 | 3 |
| 2017 | 2 | 1 |
| 2018 | 5 | 3 |
| 2019 | 1 | 1 |
| 2020 | 1 | 3 |
| 2021 | 2 | 4 |
| 2022 | 3 | 3 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Prefabricated floor element, structure comprising prefabricated floor elements and installation for obtaining the prefabricated floor element30 Dec 2025US 12,509,880 B2Elastic Potential, S.L.
- Method and arrangement for supporting a floor element on a beam and beam30 Sep 2025US 12,428,838 B2Peikko Group Oy
- Method for manufacturing prefabricated concrete products10 Dec 2024US 12,162,183 B2Elematic Oyj
- Variable assembly PC member29 Oct 2024US 12,129,653 B2Euro Engineering Co., Ltd.
- Building structure20 Dec 2022US 11,530,547 B2Parkd Ltd
- Variable assembly pc member5 Jan 2023US 2023/0003024 A1Euro Engineering Co., Ltd.
- Method and arrangement for supporting a floor element on a beam and beam17 Nov 2022US 2022/0364361 A1Peikko Group Oy
- System and method of processing hollow core element with integrated welding plates24 Mar 2022US 2022/0088825 A1Concore BV
- Concrete voided floor panel10 Mar 2022US 2022/0074206 A1e.Construct.USA, LLC
- Pre-cast concrete flooring systems and methods of use24 Jun 2021US 2021/0189722 A1North Carolina State University
Most cited
By later US patents
- Modular building block building system75US 8,646,239 B22014
- Lightweight cementitious product and method for making same59US 4,306,395 A1981
- Structural system for supporting a building utilizing light weight steel framing for walls and hollow core concrete slabs for floors52US 5,402,612 A1995
- Metal beam structure and building construction including same44US 6,332,301 B12001
- Structural system for supporting a building utilizing light weight steel framing for walls and hollow core concrete slabs for floors and method of making same41US 5,113,631 A1992