E04G 21/0481
Concrete chutes
Official title: {Concrete chutes}
E04G21/0481 (Concrete chutes) appears on 16 US grants and 12 published applications in this corpus.
Search patents in E04G- Granted patents
- 16
- Published applications
- 12
- Assignees
- 3
- Inventors
- 28
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 3 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Building material apparatus and use of at least one part sensor10 Feb 2026US 12,546,761 B2Putzmeister Engineering GmbH
- Multi-sectioned boom concrete conveyor assembly having hinged30 Nov 2021US 11,187,001 B1
- Cell funnel system13 Apr 2021US 10,974,942 B1
- Construction member with vibrating rod20 Feb 2018US 9,895,710 B2
- Cement pouring device20 Dec 2016US 9,523,206 B2
- Modular infrastructure for constructing housing units24 Sep 2026US 2026/0286727 A1Teravila Inc.
- Concrete funnel17 Oct 2024US 2024/0344345 A1
- Concrete Pouring Device3 Oct 2024US 2024/0328179 A1
- Building Material Apparatus and Use of at Least One Part Sensor18 Apr 2024US 2024/0125762 A1Putzmeister Engineering GmbH
- System and Method for Measuring Slump of Concrete Mix in a Pump Hopper25 May 2023US 2023/0158710 A1
Most cited
By later US patents