B28B 3/228
Slipform casting extruder
Official title: {Slipform casting extruder, e.g. self-propelled extruder}
B28B3/228 (Slipform casting extruder) appears on 45 US grants and 23 published applications in this corpus.
Search patents in B28B- Granted patents
- 45
- Published applications
- 23
- Assignees
- 25
- Inventors
- 52
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 4 |
| 2004 | 1 | 3 |
| 2005 | 4 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for cutting a channel in a precast concrete slab16 Jun 2026US 12,654,358 B2Concore BV
- Prefabricated floor element, structure comprising prefabricated floor elements and installation for obtaining the prefabricated floor element30 Dec 2025US 12,509,880 B2Elastic Potential, S.L.
- Method for manufacturing prefabricated concrete products10 Dec 2024US 12,162,183 B2Elematic Oyj
- Method and system for recycling concrete mass in a slipform casting process, and casting machine3 Aug 2021US 11,077,582 B2Elematic Oyj
- Method and apparatus for casting prefabricated concrete products1 Sep 2020US 10,759,086 B2Elematic Oyj
- Mixing and feeding system for 3d printing of buildings29 May 2025US 2025/0170748 A1Apis Cor Inc.
- Methods and systems for cutting a channel in a precast concrete slab10 Oct 2024US 2024/0335979 A1Concore BV
- System and method of processing hollow core element with integrated welding plates24 Mar 2022US 2022/0088825 A1Concore BV
- Mixing and feeding system for 3d printing of buildings24 Jun 2021US 2021/0187784 A1
- Prefabricated floor element, structure comprising prefabricated floor elements and installation for obtaining the prefabricated floor element11 Feb 2021US 2021/0040739 A1Elastic Potential, S.L.
Most cited
By later US patents
- Method and apparatus for manufacturing concrete panels by continuous pressing88US 5,366,676 A1994
- Extrusion casting apparatus59US 4,133,619 AThe Flexicore Co., Inc. · 1979
- Concrete slab extruder having a free flight auger17US 4,022,556 AGeorge Hyman Construction Co. · 1977
- Extrusion machine for making articles of cement-like material13US 4,046,848 ADyform Concrete (Prestressed) Ltd. · 1977
- Apparatus for extruding reinforced concrete12US 4,067,676 A1978