E04B 2002/0252
Dovetail keys
Official title: {Dovetail keys}
E04B2002/0252 (Dovetail keys) appears on 38 US grants and 35 published applications in this corpus.
Search patents in E04B- Granted patents
- 38
- Published applications
- 35
- Assignees
- 18
- Inventors
- 55
- Latest grant
- 17 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 2 |
| 2015 | 4 | 4 |
| 2016 | 3 | 6 |
| 2017 | 4 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 2 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and module system for building a wall structure17 Oct 2023US 11,788,275 B2Block Solutions Oy
- Concrete block system, method and connector21 Feb 2023US 11,585,086 B2Oldcastle Building Products Canada Inc.
- Component and production method26 Nov 2019US 10,487,495 B2
- Insulated concrete masonry system28 May 2019US 10,301,820 B2Oldcastle Architectural, Inc.
- Insulated concrete masonry system2 Oct 2018US 10,087,623 B2Oldcastle Achitectural, Inc.
- Cuboid construction element, method for manufacturing a construction element, and system comprising two cuboid construction elements4 Sep 2025US 2025/0277363 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.
- Building block and extreme weather building system17 Nov 2022US 2022/0364358 A1
- Method and module system for building a wall structure30 Dec 2021US 2021/0404176 A1Block Solutions Oy
- Concrete block system, method and connector11 Jun 2020US 2020/0181902 A1Oldcastle Building Products Canada Inc.
Most cited
By later US patents
- Apparatus for fabrication of concrete brick203US 4,869,660 A1989
- Masonry block retaining wall with attached keylock facing panels and method of constructing the same154US 5,788,423 AG. P. Industries, Inc. · 1998
- Mortarless concrete block86US 6,189,282 B1Building Works, Inc. · 2001
- Set of concrete building blocks for constructing a dry wall83US 4,896,999 A1990
- Plastic block retaining wall with attached keylock facing panels79US 6,062,772 AG. P. Industries, Inc. · 2000