E04F 21/24
Of masses made in situ
Official title: of masses made in situ, e.g. smoothing tools {(E04F21/04 takes precedence; finishing of concrete roads or pavings E01C19/40; devices for levelling concrete floors E04G21/10; devices for solidifying concrete floors by vibrating E04G21/066)}
E04F21/24 (Of masses made in situ) appears on 485 US grants and 406 published applications in this corpus.
Search patents in E04F- Granted patents
- 485
- Published applications
- 406
- Assignees
- 164
- Inventors
- 640
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 14 | 0 |
| 1989 | 15 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 11 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 15 | 0 |
| 2001 | 7 | 2 |
| 2002 | 13 | 13 |
| 2003 | 12 | 9 |
| 2004 | 14 | 12 |
| 2005 | 11 | 19 |
| 2006 | 18 | 17 |
| 2007 | 13 | 14 |
| 2008 | 9 | 15 |
| 2009 | 12 | 17 |
| 2010 | 12 | 15 |
| 2011 | 6 | 12 |
| 2012 | 8 | 5 |
| 2013 | 9 | 6 |
| 2014 | 5 | 7 |
| 2015 | 11 | 12 |
| 2016 | 10 | 8 |
| 2017 | 16 | 16 |
| 2018 | 8 | 23 |
| 2019 | 21 | 12 |
| 2020 | 15 | 23 |
| 2021 | 11 | 22 |
| 2022 | 15 | 30 |
| 2023 | 16 | 32 |
| 2024 | 17 | 31 |
| 2025 | 18 | 16 |
| 2026 | 15 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Attachment for screeding concrete15 Sep 2026US 12,735,904 B2Meinders Concrete Construction, Inc.
- Battery pack powered trowel including blade pitch and speed control4 Aug 2026US 12,698,636 B2Milwaukee Electric Tool Corporation
- Electronically actuated leveling system for screeding concrete14 Jul 2026US 12,680,240 B2Ligchine International Corporation
- Concrete screed device with oscillating screed bar23 Jun 2026US 12,662,826 B2Bad Ass Tools LLC
- Grooved surface concrete float16 Jun 2026US 12,655,645 B2Kraft Tool Company
- Concrete forming tool24 Sep 2026US 2026/0286721 A1Bull Force Concrete Products LLC
- Concrete trowel17 Sep 2026US 2026/0275733 A1Milwaukee Electric Tool Corporation
- Vibrating power tool and components thereof3 Sep 2026US 2026/0258613 A1
- 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
Most cited
By later US patents
- Apparatus for screening and trowelling concrete75US 5,039,249 A1991
- Apparatus and method for controlling laser guided machines73US 4,978,246 A1990
- Apparatus for screeding uncured concrete surfaces71US 7,121,762 B2Somero Enterprises, Inc. · 2006
- Surface seeded exposed aggregate concrete and method of producing same68US 4,748,788 A1988
- Concrete leveling machine61US 5,129,803 AShimizu Construction Co., Ltd. · 1992