E04B 2/28
Walls having cavities between, but not in, the elements
Official title: Walls having cavities between, but not in, the elements; Walls of elements each consisting of two or more parts kept in distance by means of spacers, all parts being solid
E04B2/28 (Walls having cavities between, but not in, the elements) appears on 192 US grants and 184 published applications in this corpus.
Search patents in E04B- Granted patents
- 192
- Published applications
- 184
- Assignees
- 88
- Inventors
- 281
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 3 |
| 2008 | 0 | 4 |
| 2009 | 1 | 2 |
| 2010 | 0 | 3 |
| 2011 | 1 | 5 |
| 2012 | 3 | 2 |
| 2013 | 1 | 14 |
| 2014 | 13 | 18 |
| 2015 | 16 | 21 |
| 2016 | 18 | 20 |
| 2017 | 16 | 19 |
| 2018 | 15 | 17 |
| 2019 | 18 | 9 |
| 2020 | 15 | 12 |
| 2021 | 8 | 11 |
| 2022 | 6 | 9 |
| 2023 | 10 | 7 |
| 2024 | 6 | 3 |
| 2025 | 1 | 0 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E04B 2/30Using elements having specially designed means for stabilising the position118
- E04B 2/40The walls being characterised by fillings in all cavities in order to38
- E04B 2/36Using elements having a general shape differing from that of a parallelepiped19
- E04B 2/38The walls being characterised by fillings in some of the cavities forming19
Recent patents
- Fast built assembled wall21 Jul 2026US 12,687,015 B2
- Manufactured retaining wall block with improved false joint21 Oct 2025US 12,447,650 B2Pavestone, LLC
- Structural wall with a structure exogenous to the longitudinal axis thereof for enabling the inside of the wall to be filled on site1 Oct 2024US 12,104,372 B2
- System for wall construction13 Aug 2024US 12,060,706 B2Techo-Bloc Inc.
- Manufactured retaining wall block with improved false joint6 Aug 2024US 12,053,911 B2Pavestone, LLC
- Division wall block, division wall assembly for a coke oven, method of constructing the same24 Sep 2026US 2026/0286683 A1Vanocur Refractories LLC
- Self-aligning wall block6 Aug 2026US 2026/0226736 A1Anchor Wall Systems, Inc.
- Modular construction system involving fitting and locking parts together30 Jul 2026US 2026/0218506 A1
- Fire Supression Assembly and a Support for Use in a Fire Supression Assembly7 May 2026US 2026/0125898 A1Castleforms Ltd
- Concrete wall frame assembly and method of manufacturing same11 Jul 2024US 2024/0229455 A1Nelson Stud Welding, Inc.
Most cited
By later US patents
- Interlocking brick or building block and walls constructed therefrom134US 3,936,987 A1976
- Veneer wall anchor system89US 4,869,038 ADur-O-Wall Inc. · 1989
- Concrete form86US 4,223,501 ARocky Mountain Foam Form, Inc. · 1980
- High-span anchoring system for cavity walls73US 7,017,318 B1Hohmann & Barnard, Inc. · 2006
- Foamed plastic concrete form and connectors therefor70US 4,229,920 AFrank R. Lount & Son (1971) Ltd. · 1980