E04C 1/39
Building elements of block or other shape for the construction of parts
Official title: characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
E04C1/39 (Building elements of block or other shape for the construction of parts) appears on 600 US grants and 616 published applications in this corpus.
Search patents in E04C- Granted patents
- 600
- Published applications
- 616
- Assignees
- 230
- Inventors
- 709
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 10 | 0 |
| 1991 | 12 | 0 |
| 1992 | 9 | 0 |
| 1993 | 2 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 19 | 0 |
| 1997 | 9 | 0 |
| 1998 | 17 | 0 |
| 1999 | 9 | 0 |
| 2000 | 20 | 0 |
| 2001 | 12 | 4 |
| 2002 | 14 | 15 |
| 2003 | 14 | 17 |
| 2004 | 9 | 22 |
| 2005 | 20 | 24 |
| 2006 | 9 | 27 |
| 2007 | 9 | 18 |
| 2008 | 14 | 30 |
| 2009 | 11 | 22 |
| 2010 | 16 | 26 |
| 2011 | 14 | 22 |
| 2012 | 22 | 26 |
| 2013 | 19 | 34 |
| 2014 | 24 | 42 |
| 2015 | 25 | 35 |
| 2016 | 27 | 37 |
| 2017 | 27 | 26 |
| 2018 | 28 | 38 |
| 2019 | 22 | 25 |
| 2020 | 28 | 29 |
| 2021 | 18 | 25 |
| 2022 | 14 | 23 |
| 2023 | 18 | 11 |
| 2024 | 17 | 10 |
| 2025 | 11 | 15 |
| 2026 | 5 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Building block, system and methods12 May 2026US 12,624,547 B2KLD IP Holdings, LLC
- Plastic building blocks14 Apr 2026US 12,601,171 B2ECO Snap Blocks, INC.
- Modular building system for hardscape structure14 Apr 2026US 12,601,176 B2Oldcastle Building Products Canada Inc.
- Modular building blocks31 Mar 2026US 12,590,456 B2
- Interlocking composite construction block17 Mar 2026US 12,577,776 B2Compositech, Inc.
- Reconfigurable precast concrete construction system1 Oct 2026US 2026/0297942 A1Massachusetts Institute of Technology
- Modular building system for hardscape structure1 Oct 2026US 2026/0297943 A1Oldcastle Building Products Canada Inc.
- A construction block6 Aug 2026US 2026/0226738 A1Brilliant Ideas Ltd
- Construction Blocks for Forming a Breeze Block Wall Having Different Depths at Its Edges and Along Its Sides21 May 2026US 2026/0139474 A1
- Construction Blocks for Forming a Breeze Block Wall Having Different Depths at Its Edges21 May 2026US 2026/0139480 A1
Most cited
By later US patents
- Apparatus for fabrication of concrete brick203US 4,869,660 A1989
- Composite masonry block173US 5,827,015 AAnchor Wall Systems, Inc. · 1998
- Masonry block retaining wall with attached keylock facing panels and method of constructing the same154US 5,788,423 AG. P. Industries, Inc. · 1998
- Modular block retaining wall system150US 5,816,749 AThe Tensar Corporation · 1998
- Composite masonry block139US 5,294,216 AAnchor Wall Systems, Inc. · 1994