H05B 7/148
Automatic control of power
Official title: Automatic control of power (electrode feeding arrangements H05B7/109; automatic feeding of electrodes for spot or seam welding or cutting B23K9/12; disposition of electrodes in or on furnaces F27D11/10; control of position in general G05D3/00; regulating electric characteristics of arcs in general G05F1/02; regulating electric power in general G05F1/66)
H05B7/148 (Automatic control of power) appears on 107 US grants and 75 published applications in this corpus.
Search patents in H05B- Granted patents
- 107
- Published applications
- 75
- Assignees
- 81
- Inventors
- 246
- Latest grant
- 28 Jul 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 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 2 |
| 2003 | 4 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 5 |
| 2007 | 6 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 3 |
| 2010 | 0 | 3 |
| 2011 | 0 | 0 |
| 2012 | 1 | 4 |
| 2013 | 1 | 2 |
| 2014 | 2 | 7 |
| 2015 | 2 | 7 |
| 2016 | 2 | 3 |
| 2017 | 4 | 5 |
| 2018 | 7 | 3 |
| 2019 | 5 | 2 |
| 2020 | 3 | 2 |
| 2021 | 2 | 1 |
| 2022 | 2 | 3 |
| 2023 | 3 | 3 |
| 2024 | 1 | 5 |
| 2025 | 0 | 7 |
| 2026 | 3 | 3 |
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
- Temperature sensors16 Apr 2024US 11,959,811 B2Iowa State University Research Foundation, Inc.
- Plant for melting and/or heating metal material and method to power it29 Aug 2023US 11,742,660 B2Danieli Automation S.P.A.
- Electric power supply apparatus for an electric furnace17 Sep 2026US 2026/0282183 A1Danieli Automation S.P.A.
- 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
- Dual electrode dc arc furnace13 Nov 2025US 2025/0347465 A1
- Power supply system for arc furnace and associated arc furnace and method11 Sep 2025US 2025/0287482 A1GE Energy Power Conversion Technology Limited
Most cited
By later US patents
- Device for feeding one or a plurality of electrodes in an electrothermal furnace27US 4,677,643 ALicentia Patent-Verwaltungs-G.m.b.H. · 1987
- Power control system for AC electric arc furnace22US 6,603,795 B2Hatch Associates Ltd. · 2003
- Direct current-electric arc furnace system21US 5,438,588 AABB Management AG · 1995
- Electric arc furnace controller21US 6,274,851 B1Inverpower Controls Ltd. · 2001
- Method and apparatus for controlling electrode drive speed in a consumable electrode furnace20US 4,303,797 AConsarc Corporation · 1981