E04B 2/42
Walls having cavities between, as well as in, the elements
Official title: Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities
E04B2/42 (Walls having cavities between, as well as in, the elements) appears on 286 US grants and 265 published applications in this corpus.
Search patents in E04B- Granted patents
- 286
- Published applications
- 265
- Assignees
- 124
- Inventors
- 407
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 5 |
| 2003 | 4 | 2 |
| 2004 | 2 | 2 |
| 2005 | 6 | 3 |
| 2006 | 1 | 7 |
| 2007 | 1 | 12 |
| 2008 | 1 | 10 |
| 2009 | 0 | 5 |
| 2010 | 5 | 10 |
| 2011 | 5 | 12 |
| 2012 | 8 | 7 |
| 2013 | 8 | 20 |
| 2014 | 18 | 19 |
| 2015 | 23 | 21 |
| 2016 | 22 | 24 |
| 2017 | 21 | 19 |
| 2018 | 15 | 15 |
| 2019 | 10 | 12 |
| 2020 | 11 | 17 |
| 2021 | 15 | 14 |
| 2022 | 11 | 4 |
| 2023 | 6 | 7 |
| 2024 | 3 | 5 |
| 2025 | 5 | 10 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04B 2/44Using elements having specially-designed means for stabilising the position178
- E04B 2/54The walls being characterised by fillings in all cavities in order to85
- E04B 2/52The walls being characterised by fillings in some of the cavities forming46
- E04B 2/50Using elements having a general shape differing from that of a parallelepiped14
Recent patents
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- Insulated hollow core concrete forming system for walls and slabs17 Feb 2026US 12,553,236 B2
- Insulated dry-stacked block wall system23 Dec 2025US 12,503,848 B1
- Structural units for building construction and methods of use thereof12 Aug 2025US 12,385,248 B2New Village Initiative LLC
- Brick clip to build double walls in a construction site29 Jul 2025US 12,371,899 B2
- Self-aligning wall block6 Aug 2026US 2026/0226736 A1Anchor Wall Systems, Inc.
- Structural element, layout and wall for architectural construction, especially frame houses30 Apr 2026US 2026/0117516 A1Red Point Sp. z o.o.
- Structural block wall system and method25 Dec 2025US 2025/0389115 A1Hempblock International Pty Ltd
- Structural units for building construction and methods of use thereof27 Nov 2025US 2025/0361719 A1New Village Initiative LLC
- Lomarblock system30 Oct 2025US 2025/0333955 A1
Most cited
By later US patents
- Biaxial concrete masonry casting apparatus122US 4,909,717 ANational Concrete Masonry Association · 1990
- Building block104US 4,110,949 ABaupres AG · 1978
- Wall structure with insulated interfitting blocks102US 4,123,881 A1978
- Method and apparatus for forming of a poured concrete wall100US 5,625,989 AHuntington Foam Corp. · 1997
- Mortar-less interlocking building block system81US 4,314,431 AS & M Block System of U.S. Corporation · 1982