Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12413148 | Power efficient load current derived switch timing of switching resonant topology | — | 2025-09-09 |
| 12112919 | Load current derived switch timing of switching resonant topology | — | 2024-10-08 |
| 11823867 | Load current derived switch timing of switching resonant topology | — | 2023-11-21 |
| 9789559 | System and method for controlling multiple processes in a welding-type power source using a refined controller architecture | Todd Gerald Batzler, Michael D. Madsen | 2017-10-17 |
| 9162310 | Enhanced power factor correction for welding and cutting power supplies | Todd Gerald Batzler, Michael D. Madsen | 2015-10-20 |
| 7843138 | Power supply for a hot-filament cathode | James R. Kahn, Harold R. Kaufman | 2010-11-30 |
| 7778056 | Power converter with low loss switching | — | 2010-08-17 |
| 7336512 | Power convertor with low loss switching | — | 2008-02-26 |
| 7245084 | Transformer ignition circuit for a transformer coupled plasma source | Juan Jose Gonzalez, Andrew Shabalin, Fernando Gustavo Tomasel | 2007-07-17 |
| 7235759 | Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source | — | 2007-06-26 |
| 7005845 | Power measurement mechanism for a transformer coupled plasma source | Juan Jose Gonzalez, Fernando Gustavo Tomasel | 2006-02-28 |
| 6987242 | Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source | — | 2006-01-17 |
| 6911789 | Power supply for a hot-filament cathode | James R. Kahn, Harold R. Kaufman, Denis Shaw | 2005-06-28 |
| 6865096 | Power convertor with low loss switching | — | 2005-03-08 |
| 6822396 | Transformer ignition circuit for a transformer coupled plasma source | Juan Jose Gonzalez, Andrew Shabalin, Fernando Gustavo Tomasel | 2004-11-23 |
| 6819096 | Power measurement mechanism for a transformer coupled plasma source | Juan Jose Gonzalez, Fernando Gustavo Tomasel | 2004-11-16 |
| 6815639 | Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source | — | 2004-11-09 |
| 6625046 | Power convertor with low loss switching | — | 2003-09-23 |
| 6614670 | Isolation circuit for providing isolation from a switch of a welding power supply | — | 2003-09-02 |
| 6426888 | Power convertor with low loss switching | — | 2002-07-30 |
| 6384373 | Welding power supply having improved supplemental power circuit | Brian A. Schwartz | 2002-05-07 |
| 6329636 | Method and apparatus for receiving a universal input voltage in a welding plasma or heating power source | — | 2001-12-11 |
| 6266257 | Power convertor with low loss switching | — | 2001-07-24 |
| 6163085 | Method and apparatus for selecting input voltage for a power supply | Dennis Sigl | 2000-12-19 |
| 6115273 | Power converter with low loss switching | — | 2000-09-05 |