E04B 2/46
By interlocking of projections or inserts with indentations
Official title: by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
E04B2/46 (By interlocking of projections or inserts with indentations) appears on 96 US grants and 84 published applications in this corpus.
Search patents in E04B- Granted patents
- 96
- Published applications
- 84
- Assignees
- 41
- Inventors
- 137
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 2 | 4 |
| 2012 | 2 | 2 |
| 2013 | 4 | 5 |
| 2014 | 8 | 9 |
| 2015 | 6 | 5 |
| 2016 | 13 | 11 |
| 2017 | 9 | 9 |
| 2018 | 7 | 3 |
| 2019 | 4 | 4 |
| 2020 | 2 | 7 |
| 2021 | 8 | 5 |
| 2022 | 3 | 0 |
| 2023 | 2 | 1 |
| 2024 | 1 | 4 |
| 2025 | 2 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Building block, system and methods12 May 2026US 12,624,547 B2KLD IP Holdings, LLC
- Brick clip to build double walls in a construction site29 Jul 2025US 12,371,899 B2
- Interlocking construction block system15 Apr 2025US 12,276,102 B2
- Building block, system and methods4 Jun 2024US 12,000,142 B2Stone Strong LLC
- Pilf resistant packaging system6 Jun 2023US 11,670,148 B2
- Self-aligning wall block6 Aug 2026US 2026/0226736 A1Anchor Wall Systems, Inc.
- Structural block wall system and method25 Dec 2025US 2025/0389115 A1Hempblock International Pty Ltd
- Modular Construction System and Method Utilizing Prefabricated Units for Load-Bearing Walls23 Oct 2025US 2025/0327296 A1Sonmill LTD
- Block for use in automated building construction24 Apr 2025US 2025/0129601 A1
- Building Block Made of a Polymer-Based Material and a Set of Modular Building Elements Comprising This Building Block25 Jul 2024US 2024/0247483 A1A4 Conti s.r.o.
Most cited
By later US patents
- Mortar-less interlocking building block system81US 4,314,431 AS & M Block System of U.S. Corporation · 1982
- Interlocking building block68US 4,640,071 A1987
- Precast concrete structural unit and composite wall structure61US 4,372,091 AAtlantic Pipe Corporation · 1983
- Corner and end block for interlocking building block system49US 6,065,265 ANewTec Building Products Inc. · 2000
- Pressed blocks for interlocked assembly44US 4,262,463 ABureau d'Etudes Techniques J. Hapel & Cie Ingenieurs Conseils Chillou · 1981