B23K 9/0672
Without direct contact between electrodes
Official title: {without direct contact between electrodes}
B23K9/0672 (Without direct contact between electrodes) appears on 91 US grants and 59 published applications in this corpus.
Search patents in B23K- Granted patents
- 91
- Published applications
- 59
- Assignees
- 54
- Inventors
- 202
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 7 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 3 |
| 2007 | 1 | 4 |
| 2008 | 2 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 6 |
| 2013 | 1 | 3 |
| 2014 | 2 | 3 |
| 2015 | 4 | 2 |
| 2016 | 4 | 3 |
| 2017 | 0 | 1 |
| 2018 | 4 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 8 |
| 2021 | 3 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 4 |
| 2024 | 2 | 3 |
| 2025 | 4 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23K 9/0673Ionisation of the arc gap by means of pulsed or high-frequency voltages43
- B23K 9/0678Ionization of the arc gap by means of an auxiliary arc13
- B23K 9/0675Ionization of the arc gap by means of radiation or particle bombardment10
- B23K 9/0677Ionization of the arc gap by means of a contact piece disposed5
- B23K 9/0676Ionization of the arc gap by means of heating1
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 to start arc welding2 Sep 2025US 12,403,543 B2Illinois Tool Works Inc.
- Apparatus for welding29 Jul 2025US 12,370,616 B2Saint-Gobain Performance Plastics Corporation
- Systems and methods to start arc welding2 Apr 2026US 2026/0091441 A1Illinois Tool Works Inc.
- Arc-start processes for long stick out submerged arc welding12 Feb 2026US 2026/0042164 A1Lincoln Global.Inc.
- Systems and methods for starting and stabilizing a welding arc for gas tungsten arc welding torches26 Jun 2025US 2025/0205801 A1Illinois 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
Most cited
By later US patents
- Methods and apparatus for cutting and welding59US 4,167,662 ANational Research Development Corporation · 1979
- Method and device for welding arc ignition for arc welding apparatus47US 6,156,999 APlasma Laser Technologies Ltd. · 2000
- Variable polarity power supply for welding46US 4,963,715 AVenable Industries, Inc. · 1990
- Process and installation for automatic ignition of a plasma cutting torch42US 4,280,042 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1981
- Plasma torch starting circuit31US 4,225,769 AThermal Dynamics Corporation · 1980