B21D 26/047
Mould construction
Official title: Mould construction (B21D26/037 - B21D26/045 take precedence)
B21D26/047 (Mould construction) appears on 153 US grants and 119 published applications in this corpus.
Search patents in B21D- Granted patents
- 153
- Published applications
- 119
- Assignees
- 97
- Inventors
- 296
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 0 |
| 2002 | 4 | 3 |
| 2003 | 5 | 8 |
| 2004 | 3 | 6 |
| 2005 | 3 | 4 |
| 2006 | 6 | 6 |
| 2007 | 4 | 6 |
| 2008 | 1 | 3 |
| 2009 | 3 | 1 |
| 2010 | 3 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 2 | 6 |
| 2014 | 2 | 1 |
| 2015 | 1 | 3 |
| 2016 | 4 | 4 |
| 2017 | 1 | 5 |
| 2018 | 7 | 10 |
| 2019 | 6 | 5 |
| 2020 | 4 | 7 |
| 2021 | 7 | 10 |
| 2022 | 9 | 8 |
| 2023 | 12 | 8 |
| 2024 | 6 | 5 |
| 2025 | 6 | 4 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Forming device and forming method4 Aug 2026US 12,697,652 B2Sumitomo Heavy Industries, Ltd.
- Forming device and metal pipe23 Dec 2025US 12,502,704 B2Sumitomo Heavy Industries, Ltd.
- Molding device and metal pipe19 Aug 2025US 12,390,847 B2Sumitomo Heavy Industries, Ltd.
- Forming device and forming method15 Jul 2025US 12,358,037 B2Sumitomo Heavy Industries, Ltd.
- Preforming method for high-strength steel variable-diameter tubular part25 Mar 2025US 12,257,617 B2Harbin Institute of Technology, Weihai
- Forming system20 Aug 2026US 2026/0241435 A1Sumitomo Heavy Industries, Ltd.
- Multi-material hybrid forming method and process based on single mold opening and closing, and multi-material component30 Apr 2026US 2026/0116035 A1Intelligent Aerospace Manufacturing Technology (Beijing) Co., Ltd.
- Multi-material hybrid forming device based on single mold opening and closing9 Oct 2025US 2025/0312837 A1Intelligent Aerospace Manufacturing Technology (Beijing) Co., Ltd.
- Forming device10 Jul 2025US 2025/0222508 A1Sumitomo Heavy Industries, Ltd.
- Isostatic interference-fit joint10 Jul 2025US 2025/0222509 A1
Most cited
By later US patents
- Method of forming a tubular member with flange72US 5,070,717 AGeneral Motors Corporation · 1991
- Method of forming a tubular blank into a structural component and die therefor68US 7,269,986 B2Hot Metal Gas Forming IP 2, Inc. · 2007
- Apparatus for piercing hydroformed part42US 5,398,533 AGeneral Motors Corporation · 1995
- Strengthening member for automobile41US 6,752,451 B2Nippon Steel Corporation · 2004
- Apparatus and method for forming a tubular frame member38US 5,353,618 AArmco Steel Corporation · 1994