H05B 7/144
Power supplies specially adapted for heating by electric discharge
Official title: Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes
H05B7/144 (Power supplies specially adapted for heating by electric discharge) appears on 159 US grants and 108 published applications in this corpus.
Search patents in H05B- Granted patents
- 159
- Published applications
- 108
- Assignees
- 115
- Inventors
- 402
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 3 | 0 |
| 1986 | 9 | 0 |
| 1987 | 9 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 3 |
| 2003 | 6 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 6 |
| 2007 | 6 | 1 |
| 2008 | 0 | 3 |
| 2009 | 0 | 3 |
| 2010 | 0 | 3 |
| 2011 | 2 | 2 |
| 2012 | 1 | 6 |
| 2013 | 1 | 3 |
| 2014 | 3 | 7 |
| 2015 | 3 | 8 |
| 2016 | 2 | 3 |
| 2017 | 4 | 5 |
| 2018 | 7 | 4 |
| 2019 | 5 | 5 |
| 2020 | 4 | 4 |
| 2021 | 3 | 4 |
| 2022 | 6 | 5 |
| 2023 | 3 | 4 |
| 2024 | 1 | 13 |
| 2025 | 2 | 8 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Temperature sensors28 Jul 2026US 12,693,171 B2Iowa State University Research Foundation, Inc.
- Flexible power supply device for AC arc furnace, and control method thereof21 Jul 2026US 12,689,303 B2Rongxin Huiko Electric Co., Ltd.
- Power supply device and power supply method for direct current electric arc furnace31 Mar 2026US 12,592,626 B2
- Arc furnace power supply with converter circuit24 Jun 2025US 12,341,417 B2ABB Schweiz AG
- Video analysis-based algorithm for triggering power cutback in vacuum arc remelting17 Jun 2025US 12,332,611 B2Titanium Metals Corporation
- Electric power supply apparatus for an electric furnace17 Sep 2026US 2026/0282183 A1Danieli Automation S.P.A.
- Furnace power supply apparatus, system for the power supply of a furnace, furnace, use of the furnace power supply apparatus and operating method30 Jul 2026US 2026/0223261 A1SMS group GmbH
- Device and method for generating electroplasmic heat16 Jul 2026US 2026/0206105 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Flexible power supply device for ac arc furnace, and control method thereof12 Feb 2026US 2026/0045889 A1Rongxin Huiko Electric Co., Ltd.
- Electric furnace equipment and method for manufacturing molten metal8 Jan 2026US 2026/0009096 A1Posco
Most cited
By later US patents
- Arrangement for controlling the electrodes of an arc furnace42US 4,324,944 ASiemens Aktiengesellschaft · 1982
- Device for feeding one or a plurality of electrodes in an electrothermal furnace27US 4,677,643 ALicentia Patent-Verwaltungs-G.m.b.H. · 1987
- Flicker compensating apparatus for DC arc furnace25US 5,155,740 ANKK Corporation · 1992
- Power control system for AC electric arc furnace22US 6,603,795 B2Hatch Associates Ltd. · 2003
- Power supply circuit for a direct current arc furnace21US 4,461,010 AElectro-Petroleum, Inc. · 1984