B28B 21/04
By simple casting, the material being neither positively compacted nor forcibly fed
Official title: by simple casting, the material being neither positively compacted nor forcibly fed
B28B21/04 (By simple casting, the material being neither positively compacted nor forcibly fed) appears on 9 US grants and 9 published applications in this corpus.
Search patents in B28B- Granted patents
- 9
- Published applications
- 9
- Assignees
- 8
- Inventors
- 44
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Precast column and method of manufacturing the same3 Feb 2026US 12,540,473 B2Ruentex Engineering & Construction Co., Ltd.
- Adjustable magnetic support stand for pallet14 Oct 2025US 12,441,025 B2Hawkeyepedershaab Concrete Technologies, Inc.
- Lightweight aggregate-based non-steam-cured high-performance pipe culvert and preparation method thereof9 Sep 2025US 12,410,099 B1Kunming Shunhong New Materials Co., Ltd
- System and method for producing concrete products by a casting method13 Aug 2024US 12,059,820 B2
- System and method for producing tubular concrete products29 Jan 2019US 10,189,179 B2
- Adjustable Magnetic Support Stand for Pallet16 Jul 2026US 2026/0200131 A1Hawkeyepedershaab Concrete Technologies, Inc.
- Adjustable Magnetic Support Stand for Pallet8 Jan 2026US 2026/0008203 A1Hawkeyepedershaab Concrete Technologies, Inc.
- Adjustable Magnetic Support Stand for Pallet24 Jul 2025US 2025/0236048 A1Hawkeyepedershaab Concrete Technologies, Inc.
- Method for manufacturing ceramic material, ceramic material and use of ceramic material3 Jul 2025US 2025/0214900 A1Petroleo Brasileiro S.A. - Petrobras
- Precast column and method of manufacturing the same21 Mar 2024US 2024/0093492 A1Ruentex Engineering & Construction Co., Ltd.
Most cited
By later US patents
- Paper feed roller and method of manufacture6US 6,843,761 B1Sumitomo Osaka Cement Co., Ltd. · 2005
- Facing ring and pouring chute for vertically cast concrete pipe3US 3,942,936 AAmeron, Inc. · 1976
- Method of casting beveled pipe2US 4,101,622 AAmeron, Inc. · 1978
- Plant for producing reinforced-concrete pipes1US 4,249,871 A1981