B28B 7/22
Moulds for making units for prefabricated buildings , i.e. units each comprising
Official title: Moulds for making units for prefabricated buildings {, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells (for making rooms or entire buildings in situ E04G11/02)}; Moulds for making prefabricated stair units
B28B7/22 (Moulds for making units for prefabricated buildings , i.e. units each comprising) appears on 110 US grants and 55 published applications in this corpus.
Search patents in B28B- Granted patents
- 110
- Published applications
- 55
- Assignees
- 60
- Inventors
- 146
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 0 | 3 |
| 2012 | 1 | 2 |
| 2013 | 3 | 3 |
| 2014 | 3 | 1 |
| 2015 | 2 | 5 |
| 2016 | 3 | 2 |
| 2017 | 3 | 1 |
| 2018 | 0 | 2 |
| 2019 | 6 | 2 |
| 2020 | 0 | 4 |
| 2021 | 3 | 5 |
| 2022 | 1 | 3 |
| 2023 | 3 | 1 |
| 2024 | 4 | 3 |
| 2025 | 1 | 2 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Precast concrete stairway construction method25 Aug 2026US 12,716,243 B2Easycore Co., Ltd.
- Tool for making an aesthetic wall skin24 Jun 2025US 12,337,504 B1Pulp Art Surfaces LLC
- Formwork core for a formwork system for casting a bell-shaped body10 Dec 2024US 12,163,342 B2Ratec Maschinenentwicklungs - und Verwaltungs-GmbH
- Method for 3D printing prefabricated modular buildings9 Jul 2024US 12,030,211 B2Beijing Huashang Luhai Technology Co., Ltd.
- Double production line and rapid prefabrication process of segmental beam30 Apr 2024US 11,969,915 B2China Railway Guangzhou Engineering Group Co., Ltd.
- L-shaped form and system for manufacturing precast walls9 Jul 2026US 2026/0192489 A1B2B Empreendimentos Imobiliarios Ltda.
- Method for fabricating structural panels4 Jun 2026US 2026/0151934 A1Obshchestvo S Ogranichennoi Otvetstvennostiu "Amatec"
- Concrete segment of a section of a wind turbine tower, mould configured to cast a concrete segment and method of assembling a wind turbine16 Apr 2026US 2026/0104032 A1Nordex Energy Spain, S.A.U.
- Concrete segment of a section of a wind turbine tower and a mould configured to cast a concrete segment9 Apr 2026US 2026/0098517 A1Nordex Energy Spain, S.A.U.
- Method for manufacturing a device for a master forming process, device for a master forming process and master forming process29 Jan 2026US 2026/0028780 A1Università Della Svizzera Italiana
Most cited
By later US patents
- Method for entombment of tanks in concrete45US 4,826,644 AConvault, Inc. · 1989
- Manufacture of precast concrete units and a building constructed therewith42US 4,178,343 A1979
- Concrete casting system33US 5,755,982 AStrickland Industries, Inc. · 1998
- Apparatus and process for casting large concrete boxes33US 5,997,792 ATWIC Housing Corporation · 1999
- Structural members32US 5,573,348 A1996