B21D 22/21
Without fixing the border of the blank
Official title: without fixing the border of the blank
B21D22/21 (Without fixing the border of the blank) appears on 90 US grants and 81 published applications in this corpus.
Search patents in B21D- Granted patents
- 90
- Published applications
- 81
- Assignees
- 66
- Inventors
- 193
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 2 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 2 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 8 |
| 2016 | 7 | 2 |
| 2017 | 3 | 2 |
| 2018 | 2 | 4 |
| 2019 | 5 | 11 |
| 2020 | 4 | 3 |
| 2021 | 6 | 7 |
| 2022 | 7 | 6 |
| 2023 | 2 | 5 |
| 2024 | 3 | 1 |
| 2025 | 4 | 7 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Steel component and production method for the same20 Jan 2026US 12,528,110 B2Nippon Steel Corporation
- Overlapped blank and molding method thereof2 Dec 2025US 12,485,465 B2Kobe Steel, Ltd.
- Mold, apparatus, and method for producing metal-resin composite21 Oct 2025US 12,447,700 B2Kobe Steel, Ltd.
- Apparatus and method for manufacturing rechargeable battery case24 Jun 2025US 12,341,146 B2Sangsinedp Co., Ltd.
- Method of manufacturing press-formed product and press line11 Feb 2025US 12,220,737 B2Nippon Steel Corporation
- Method for producing press-formed product, press apparatus, press-formed product, structural component for automobile, and automobile6 Aug 2026US 2026/0225142 A1Nippon Steel Corporation
- Method of manufacturing press-formed part19 Mar 2026US 2026/0077399 A1Jfe Steel Corporation
- Method for manufacturing housing by press working, apparatus therefor and housing thereof22 Jan 2026US 2026/0021525 A1Denso Corporation
- Method for manufacturing a large-sized seamless dome, and corresponding dome15 Jan 2026US 2026/0014616 A1Aubert & Duval
- Method of manufacturing a formed component27 Nov 2025US 2025/0360551 A1Futaba Industrial Co., Ltd.
Most cited
By later US patents
- Container end closure35US 5,950,858 A1999
- Temperature control in an ultra light engine valve31US 5,458,314 AEaton Corporation · 1995
- Ultra light engine valve30US 5,413,073 AEaton Corporation · 1995
- Battery can, sheet for forming battery can, and method for manufacturing sheet27US 5,576,113 AKatayama Special Industries, Ltd. · 1996
- Engine variable valve timing mechanism22US 5,724,929 AToyota Jidosha Kabushiki Kaisha · 1998