B23K 9/1075
Parallel power supply, i.e. multiple power supplies or multiple inverters supplying a
Official title: {Parallel power supply, i.e. multiple power supplies or multiple inverters supplying a single arc or welding current}
B23K9/1075 (Parallel power supply, i.e. multiple power supplies or multiple inverters supplying a) appears on 90 US grants and 100 published applications in this corpus.
Search patents in B23K- Granted patents
- 90
- Published applications
- 100
- Assignees
- 29
- Inventors
- 144
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 2 |
| 2003 | 3 | 1 |
| 2004 | 0 | 3 |
| 2005 | 4 | 3 |
| 2006 | 4 | 4 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 3 |
| 2012 | 1 | 2 |
| 2013 | 1 | 0 |
| 2014 | 3 | 9 |
| 2015 | 3 | 5 |
| 2016 | 4 | 5 |
| 2017 | 1 | 5 |
| 2018 | 6 | 6 |
| 2019 | 2 | 9 |
| 2020 | 13 | 10 |
| 2021 | 4 | 6 |
| 2022 | 8 | 7 |
| 2023 | 6 | 2 |
| 2024 | 6 | 9 |
| 2025 | 4 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bolt on power213 Jan 2026US 12,521,823 B2
- Systems and methods to have multiple welding-type power supplies concurrently set up25 Nov 2025US 12,479,039 B2Illinois Tool Works Inc.
- Welding power supply with half bridge8 Jul 2025US 12,350,767 B2Illinois Tool Works Inc.
- System and method for preventing high voltage on a low voltage output in a welding-type system10 Jun 2025US 12,325,094 B2Illinois Tool Works Inc.
- Methods and apparatus to control engine speed of a power system18 Feb 2025US 12,231,010 B2Illinois Tool Works Inc.
- Battery-powered welding machine16 Apr 2026US 2026/0102834 A1Lincoln Global.Inc.
- Hybrid arc welding system11 Sep 2025US 2025/0281991 A1Lincoln Global.Inc.
- Bolt on power214 Aug 2025US 2025/0256364 A1Worksite Lighting LLC
- Welding power supply17 Jul 2025US 2025/0229354 A1DAIHEN Corporation
- Power on switch function for hybrid-powered welding power source29 May 2025US 2025/0170666 A1
Most cited
By later US patents
- Electric arc welding system68US 6,472,634 B1Lincoln Global.Inc. · 2002
- Electric ARC welder and plasma cutter65US 6,023,037 ALincoln Global.Inc. · 2000
- Electric ARC welder with a plurality of power supplies63US 6,291,798 B1Lincoln Global.Inc. · 2001
- Forced load sharing circuit for inverter power supply61US 4,425,613 ASperry Corporation · 1984
- Fuel saving engine driven welding-type device and method of use57US 6,982,398 B2Illinois Tool Works Inc. · 2006