E04B 2/32
By interlocking of projections or inserts with indentations
Official title: by interlocking of projections or inserts with indentations, e.g. of tongues, grooves, dovetails
E04B2/32 (By interlocking of projections or inserts with indentations) appears on 57 US grants and 51 published applications in this corpus.
Search patents in E04B- Granted patents
- 57
- Published applications
- 51
- Assignees
- 16
- Inventors
- 60
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 5 |
| 2014 | 3 | 4 |
| 2015 | 4 | 4 |
| 2016 | 3 | 5 |
| 2017 | 5 | 6 |
| 2018 | 7 | 4 |
| 2019 | 6 | 2 |
| 2020 | 3 | 5 |
| 2021 | 2 | 6 |
| 2022 | 1 | 2 |
| 2023 | 6 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Manufactured retaining wall block with improved false joint21 Oct 2025US 12,447,650 B2Pavestone, LLC
- Manufactured retaining wall block with improved false joint6 Aug 2024US 12,053,911 B2Pavestone, LLC
- Interlocking blocks and assembly of interlocking structures27 Feb 2024US 11,913,223 B2Trustees of Dartmouth College
- Manufactured retaining wall block with improved false joint31 Oct 2023US 11,801,622 B2Pavestone, LLC
- System for building a load bearing structure11 Apr 2023US 11,623,160 B2Jenner Innovation Pty Ltd
- 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
- Manufactured retaining wall block with improved false joint2 May 2024US 2024/0140003 A1Pavestone, LLC
- Manufactured retaining wall block with improved false joint3 Aug 2023US 2023/0241810 A1Pavestone, LLC
- Adjustable locator retaining wall block and mold apparatus18 May 2023US 2023/0150174 A1Pavestone, LLC
Most cited
By later US patents
- Interlocking brick or building block and walls constructed therefrom134US 3,936,987 A1976
- Foamed plastic concrete form and connectors therefor70US 4,229,920 AFrank R. Lount & Son (1971) Ltd. · 1980
- Concrete building block system70US 5,402,609 A1995
- Wall tie and a wall incorporating the wall tie55US 4,180,956 A1980
- Building wall construction35US 4,433,520 A1984