E04F 21/05
Supports for jointing rulers
E04F21/05 (Supports for jointing rulers) appears on 53 US grants and 25 published applications in this corpus.
Search patents in E04F- Granted patents
- 53
- Published applications
- 25
- Assignees
- 12
- Inventors
- 54
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 6 | 1 |
| 2003 | 2 | 1 |
| 2004 | 2 | 4 |
| 2005 | 1 | 0 |
| 2006 | 2 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 5 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 2 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Screed beam support apparatus12 Aug 2025US 12,385,599 B2
- Wide swath offset concrete screed17 Jun 2025US 12,331,470 B2Dragon Screed LLC
- System and method for shotcrete construction7 Jan 2025US 12,188,241 B2Shaw Craftsmen Concrete, LLC
- System and method for shotcrete construction5 Dec 2023US 11,834,851 B2Shaw Craftsmen Concrete, LLC
- System and method for shotcrete construction7 Feb 2023US 11,572,700 B2Shaw Craftsmen Concrete, LLC
- Wide Swath Offset Concrete Screed9 Oct 2025US 2025/0314022 A1Dragon Screed LLC
- Screed beam support apparatus26 Dec 2024US 2024/0426421 A1
- System and method for shotcrete construction29 Feb 2024US 2024/0068245 A1Shaw Craftsmen Concrete, LLC
- System and method for shotcrete construction11 May 2023US 2023/0148127 A1Shaw Craftsmen Concrete, LLC
- Wide Swath Offset Concrete Screed4 Aug 2022US 2022/0243406 A1Dragon Screed LLC
Most cited
By later US patents
- Screed ski and support system and method59US 6,866,445 B22005
- Method for screeding cement58US 4,115,976 AJohn Rohrer Contracting Company · 1978
- Wall strip with raised bead for plaster screeding comprising two nailing strips connected by a riser strip configuration39US 6,338,229 B12002
- Tile laying gauge and leveling assembly35US 6,412,185 B12002
- Concrete screed adjustable stirrup34US 4,158,937 A1979