B23K 9/0673
Ionisation of the arc gap by means of pulsed or high-frequency voltages
Official title: {Ionisation of the arc gap by means of pulsed or high-frequency voltages}
B23K9/0673 (Ionisation of the arc gap by means of pulsed or high-frequency voltages) appears on 43 US grants and 31 published applications in this corpus.
Search patents in B23K- Granted patents
- 43
- Published applications
- 31
- Assignees
- 22
- Inventors
- 92
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 3 |
| 2013 | 0 | 0 |
| 2014 | 1 | 3 |
| 2015 | 2 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 4 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 3 |
| 2021 | 2 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 2 | 3 |
| 2025 | 1 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Welding assembly comprising a welding device and a welding component connected to the welding device2 Jun 2026US 12,643,169 B2Fronius International GmbH
- Systems and methods to provide welding-type arc starting and stabilization with reduced open circuit voltage3 Feb 2026US 12,539,552 B2Illinois Tool Works Inc.
- Two-channel device for two-frequency arc welding23 Dec 2025US 12,502,723 B2
- Systems and methods for controlling arc initiation and termination in a welding process29 Oct 2024US 12,128,508 B2Illinois Tool Works Inc.
- Systems and methods to provide welding-type arc starting and stabilization with reduced open circuit voltage16 Apr 2024US 11,958,141 B2Illinois Tool Works Inc.
- Two-channel device for two-frequency arc welding29 May 2025US 2025/0170665 A1
- Device and method for carrying out a welding process26 Sep 2024US 2024/0316676 A1Fronius International GmbH
- Systems and methods to provide welding-type arc starting and stabilization with reduced open circuit voltage8 Aug 2024US 2024/0261884 A1Illinois Tool Works Inc.
- Welding assembly comprising a welding device and a welding component connected to the welding device2 May 2024US 2024/0139849 A1Fronius International GmbH
- Method and device for limiting energy when igniting an arc28 Dec 2023US 2023/0415255 A1Fronius International GmbH
Most cited
By later US patents
- Method and device for welding arc ignition for arc welding apparatus47US 6,156,999 APlasma Laser Technologies Ltd. · 2000
- Control system for pulsed DC arc welding power supply31US 4,384,188 ACarrier Corporation · 1983
- Device and method for starting electric arc of a welder25US 5,117,088 AThe Lincoln Electric Company · 1992
- Method of and apparatus for initiating a welding arc23US 6,075,224 AIllinois Tool Works Inc. · 2000
- Method of restarting a plasma arc torch using a periodic high frequency-high voltage signal16US 5,296,665 AHypertherm, Inc. · 1994