E04F 21/244
With means to adjust the working angle of the leveling blade or
Official title: {with means to adjust the working angle of the leveling blade or plate}
E04F21/244 (With means to adjust the working angle of the leveling blade or) appears on 72 US grants and 56 published applications in this corpus.
Search patents in E04F- Granted patents
- 72
- Published applications
- 56
- Assignees
- 25
- Inventors
- 94
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 3 |
| 2003 | 1 | 2 |
| 2004 | 4 | 3 |
| 2005 | 3 | 5 |
| 2006 | 3 | 0 |
| 2007 | 3 | 4 |
| 2008 | 1 | 3 |
| 2009 | 4 | 3 |
| 2010 | 3 | 3 |
| 2011 | 2 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 3 | 1 |
| 2018 | 2 | 3 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | 2 |
| 2022 | 2 | 1 |
| 2023 | 3 | 8 |
| 2024 | 2 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hand-held vibrating cement trowel2 Jun 2026US 12,644,293 B2CK Industry LLC
- Vibration apparatus for concrete finishing tools and methods11 Mar 2025US 12,247,361 B2Baron Innovative Technology LP
- Machine for removing formwork from ceiling structure11 Jun 2024US 12,006,707 B2Somero Enterprises, Inc.
- Concrete texturing devices and methods23 Apr 2024US 11,965,294 B2Tri Mor Corporation
- Trowel and a method for using the trowel and a laser level26 Dec 2023US 11,852,478 B2Ka-Tuote Oy
- Manual concrete finishing tools and components for use therewith23 Jul 2026US 2026/0210133 A1Baron Innovative Technology LP
- Drive-in boom screed23 Jul 2026US 2026/0210135 A1Ligchine International Corporation
- Concrete screeding machine with elevation control over contoured support surface18 Jun 2026US 2026/0168265 A1Somero Enterprises, Inc.
- Floats, float assemblies, float adapters and interfaces, and float vibration apparatus, and methods28 Aug 2025US 2025/0270770 A1Baron Innovative Technology LP
- Concrete screed24 Apr 2025US 2025/0129554 A1
Most cited
By later US patents
- Apparatus for screeding uncured concrete surfaces71US 7,121,762 B2Somero Enterprises, Inc. · 2006
- Portable screed with floating screed plate55US 4,838,730 A1989
- Concrete finishing tool52US 6,139,217 A2000
- Light weight apparatus for screeding and vibrating uncured concrete surfaces46US 6,976,805 B2Delaware Capital Formation, Inc. · 2005
- Lightweight apparatus for screeding and vibrating uncured concrete surfaces41US 6,953,304 B2Delaware Capital Formation, Inc. · 2005