E04G 21/1883
Spacers
Official title: {Spacers, e.g. to have a constant spacing between courses of masonry}
E04G21/1883 (Spacers) appears on 40 US grants and 29 published applications in this corpus.
Search patents in E04G- Granted patents
- 40
- Published applications
- 29
- Assignees
- 13
- Inventors
- 54
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 3 | 2 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 4 | 2 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 3 |
| 2021 | 3 | 3 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Construction packer3 Feb 2026US 12,540,477 B2
- Deck fasteners alignment tool18 Mar 2025US 12,252,891 B1
- Masonry guiding tool31 Dec 2024US 12,180,726 B1
- Spacer for fixation to a construction element, for maintaining a relative distance to another construction element, and for restricting a movement about a position relative to another construction element2 Jul 2024US 12,024,908 B2PR Licensing B.V.
- Flooring board spacing assembly8 Aug 2023US 11,719,002 B2Decktec Pty Ltd
- Spacers, walls, and methods of constructing a wall23 Apr 2026US 2026/0110183 A1DeYaga, LLC
- Construction packer11 Jan 2024US 2024/0011309 A1
- A flooring board spacing assembly8 Apr 2021US 2021/0102384 A1Decktec Pty Ltd
- Vertical Rebar Support and Spacing Device and System11 Feb 2021US 2021/0040756 A1
- A spacer for fixation to a construction element, for maintaining a relative distance to another construction element, and for restricting a movement about a position relative to another construction element7 Jan 2021US 2021/0002912 A1PR Licensing B.V.
Most cited
By later US patents
- Reinforcing spacer device48US 8,051,619 B2Mitek Holdings, Inc. · 2011
- Masonry wall panel for retaining bricks29US 8,627,625 B2Oldcastle Building Products Canada Inc. · 2014
- Masonry laying device22US 5,193,320 A1993
- Masonry wall system with guiding means22US 8,621,801 B2Oldcastle Building Products Canada Inc. · 2014
- Masonry structure and apparatus and process for spacing block in the structure16US 4,334,397 A1982