E04G 21/06
Solidifying concrete
Official title: Solidifying concrete, e.g. by application of vacuum before hardening (devices for solidifying also soil E02D3/02; for road building E01C19/00; {for producing shaped articles B28B1/00})
E04G21/06 (Solidifying concrete) appears on 146 US grants and 137 published applications in this corpus.
Search patents in E04G- Granted patents
- 146
- Published applications
- 137
- Assignees
- 76
- Inventors
- 253
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 2 |
| 2002 | 1 | 2 |
| 2003 | 5 | 8 |
| 2004 | 6 | 8 |
| 2005 | 7 | 6 |
| 2006 | 6 | 5 |
| 2007 | 4 | 5 |
| 2008 | 3 | 6 |
| 2009 | 3 | 2 |
| 2010 | 3 | 3 |
| 2011 | 3 | 2 |
| 2012 | 2 | 4 |
| 2013 | 3 | 1 |
| 2014 | 1 | 3 |
| 2015 | 4 | 5 |
| 2016 | 4 | 3 |
| 2017 | 4 | 5 |
| 2018 | 1 | 2 |
| 2019 | 4 | 3 |
| 2020 | 1 | 4 |
| 2021 | 2 | 6 |
| 2022 | 2 | 11 |
| 2023 | 1 | 9 |
| 2024 | 9 | 20 |
| 2025 | 5 | 6 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hammer drill attachment19 May 2026US 12,631,034 B2
- Concrete vibrator system14 Apr 2026US 12,601,192 B2Milwaukee Electric Tool Corporation
- System for guiding an operator when compacting concrete31 Mar 2026US 12,590,802 B2Wacker Neuson Produktion GmbH & Co. KG
- Concrete vibrator24 Feb 2026US 12,559,955 B2Honda Motor Co., Ltd.
- Modular concrete tool9 Dec 2025US 12,491,616 B2Milwaukee Electric Tool Corporation
- Modular infrastructure for constructing housing units24 Sep 2026US 2026/0286727 A1Teravila Inc.
- Material preparation systems and related devices and methods of preparing cementitious materials27 Aug 2026US 2026/0250209 A1Saudi Arabian Oil Company
- Quickly-deployable automated rapid-slip-form concrete placement system20 Aug 2026US 2026/0243093 A1
- Concrete vibrator system20 Aug 2026US 2026/0243094 A1Milwaukee Electric Tool Corporation
- Concrete splash shield21 May 2026US 2026/0139499 A1
Most cited
By later US patents
- Method of casting concrete89US 4,362,679 A1982
- Apparatus for screeding uncured concrete surfaces71US 7,121,762 B2Somero Enterprises, Inc. · 2006
- Apparatus and method for improving the control of a concrete screed head assembly50US 7,044,681 B2Somero Enterprises, Inc. · 2006
- Light weight apparatus for screeding and vibrating uncured concrete surfaces46US 6,976,805 B2Delaware Capital Formation, Inc. · 2005
- Battery concrete vibrator45US 5,725,304 AMakita Corporation · 1998