H05B 7/22
Indirect heating by arc discharge
H05B7/22 (Indirect heating by arc discharge) appears on 17 US grants and 7 published applications in this corpus.
Search patents in H05B- Granted patents
- 17
- Published applications
- 7
- Assignees
- 11
- Inventors
- 25
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 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 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Plasma stove20 May 2025US 12,305,865 B1
- DC plasma electric arc furnace for processing solid waste, method of processing solid waste, and products formed from DC plasma electric arc furnace13 May 2025US 12,298,077 B2
- DC plasma electric arc furnace for processing solid waste, method of processing solid waste, and products formed from DC plasma electric arc furnace28 Dec 2021US 11,209,211 B1
- Inline plasma-based system and method for thermal treatment of continuous products10 Mar 2020US 10,588,183 B2Illinois Tool Works Inc.
- Method and apparatus for adding thermal energy to a glass melt1 Jan 2019US 10,167,220 B2Corning Incorporated
- Sintering device with temperature gradient control12 Feb 2026US 2026/0042711 A1Heraeus Covantics North America LLC
- Dc plasma electric arc furnace for processing solid waste, method of processing solid waste, and products formed from dc plasma electric arc furnace14 Apr 2022US 2022/0113090 A1
- Smelting method for metallurgical electric-furnace30 May 2019US 2019/0161816 A1Beijing Zhongkaihongde Technology Co., Ltd
- Inline Plasma-Based System and Method for Thermal Treatment of Continuous Products7 Dec 2017US 2017/0353999 A1Illinois Tool Works Inc.
- Method and apparatus for adding thermal energy to a glass melt3 Aug 2017US 2017/0217811 A1Corning Incorporated
Most cited
By later US patents
- Radiant zone heating apparatus and method27US 4,058,699 AArthur D. Little, Inc. · 1977
- Heating apparatus having ellipsoidal reflecting mirror15US 4,184,065 ANichiden Machinery, Limited · 1980
- Method and apparatus for adding thermal energy to a glass melt12US 10,167,220 B2Corning Incorporated · 2019
- Manufacture of carbides and the like9US 4,153,527 A1979
- Levitation heating method and levitation heating furnace6US 5,247,144 AMitsubishi Denki Kabushiki Kaisha · 1993