B21J 17/02
Electrically heated
Official title: electrically heated (electric heating elements H05B)
B21J17/02 (Electrically heated) appears on 9 US grants and 8 published applications in this corpus.
Search patents in B21J- Granted patents
- 9
- Published applications
- 8
- Assignees
- 8
- Inventors
- 30
- Latest grant
- 24 Aug 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 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 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Opening-and-closing type heater and wind generator shaft forging process using the same24 Aug 2021US 11,097,335 B2Jiangyin Zenkung Forging Co., Ltd.
- Automated rapid discharge forming of metallic glasses19 Jul 2016US 9,393,612 B2Glassimetal Technology, Inc.
- Replaceable induction forging coil28 Jul 2009US 7,565,734 B2
- Press for holding and pressing a workpiece27 Mar 2007US 7,194,887 B2Snecma Moteurs
- Method and apparatus for forming metallic materials22 Jun 2004US 6,751,999 B2Toshiba Kikai Kabushiki Kaisha
- Composite forging device and metal lamination equipment using the same30 Apr 2026US 2026/0115785 A1Industrial Technology Research Institute
- Conduction pre-heating of sheet for hot forming15 Jan 2026US 2026/0014612 A1Magna International Inc.
- Conduction pre-heating of sheet for hot forming5 Aug 2021US 2021/0237138 A1Magna International Inc.
- Opening-and-Closing Type Heater and Wind Generator Shaft Forging Process Using the Same6 Dec 2018US 2018/0345355 A1Jiangyin Zenkung Forging Co., Ltd.
- Automated rapid discharge forming of metallic glasses15 May 2014US 2014/0130563 A1Glassimetal Technology, Inc.
Most cited
By later US patents
- Heating nonmagnetic metal workpieces7US 4,577,081 APark-Ohio Industries, Inc. · 1986
- Electric slot furnace5US 4,159,415 AKlein Tools, Inc. · 1979
- Heating magnetic metal workpieces4US 4,619,717 APark-Ohio Industries, Inc. · 1986
- Press for holding and pressing a workpiece3US 7,194,887 B2Snecma Moteurs · 2007
- Automated rapid discharge forming of metallic glasses3US 9,393,612 B2Glassimetal Technology, Inc. · 2016