B21D 26/12
Initiated by spark discharge
Official title: initiated by spark discharge
B21D26/12 (Initiated by spark discharge) appears on 50 US grants and 49 published applications in this corpus.
Search patents in B21D- Granted patents
- 50
- Published applications
- 49
- Assignees
- 15
- Inventors
- 75
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 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 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 2 | 3 |
| 2010 | 3 | 3 |
| 2011 | 1 | 4 |
| 2012 | 2 | 3 |
| 2013 | 3 | 1 |
| 2014 | 3 | 6 |
| 2015 | 4 | 6 |
| 2016 | 2 | 4 |
| 2017 | 3 | 3 |
| 2018 | 2 | 3 |
| 2019 | 4 | 3 |
| 2020 | 2 | 1 |
| 2021 | 2 | 2 |
| 2022 | 4 | 3 |
| 2023 | 0 | 1 |
| 2024 | 3 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Battery case shaping apparatus and method using shock wave28 Apr 2026US 12,614,787 B2LG Energy Solution, Ltd.
- Method of producing a high-energy hydroformed structure from a 2XXX-series alloy26 Nov 2024US 12,152,292 B2Airbus SAS
- Hybrid forming method and corresponding forming device13 Feb 2024US 11,897,017 B2Adm28 S.àR.L
- Pulsed electric discharge device16 Jan 2024US 11,876,352 B2Adm28 France
- Device and method for forming metal plate by using high-energy electric pulse to drive energetic materials19 Jul 2022US 11,389,853 B2Harbin Institute of Technology
- Electrode for an electrohydraulic forming chamber10 Sep 2026US 2026/0264129 A1Adm28 France
- Battery Case Shaping Apparatus and Method Using Shock Wave22 Jun 2023US 2023/0198055 A1LG Energy Solution, Ltd.
- Hybrid forming method and corresponding forming device28 Apr 2022US 2022/0126350 A1Adm28 S.àR.L
- Method of producing a high-energy hydroformed structure from a 2xxx-series alloy24 Feb 2022US 2022/0056562 A1Airbus SAS
- Pulsed electric discharge device20 Jan 2022US 2022/0021190 A1Adm28 S.àR.L
Most cited
By later US patents
- Electrohydraulic forming tool and method of forming sheet metal blank with the same42US 7,802,457 B2Ford Global Technologies, LLC · 2010
- Method and apparatus for pulsed discharge forming of a dish from a planar plate21US 6,591,649 B1Pulsar Welding Ltd. · 2003
- Electromagnetic and/or electrohydraulic forming of a metal plate19US 6,708,542 B1Pulsar Welding Ltd. · 2004
- Forming of ferromagnetic metallic glass by rapid capacitor discharge19US 8,613,816 B2California Institute of Technology · 2013
- Electro-hydraulic forming tool having two liquid volumes separated by a membrane17US 7,493,787 B2Ford Global Technologies, LLC · 2009