Issued Patents All Time
Showing 26–50 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6940040 | Electric arc welding system | William S. Houston, Russell K. Myers | 2005-09-06 |
| 6924460 | Engine welder with shielding gas generation | — | 2005-08-02 |
| 6870132 | Power supply for electric arc welding | — | 2005-03-22 |
| 6855912 | Electric arc welding system | William S. Houston, Russell K. Myers | 2005-02-15 |
| 6818860 | Portable welder with integral battery charger | William T. Matthews | 2004-11-16 |
| 6683278 | Tandem electrode welder and method of welding with two electrodes | Steven R. Peters | 2004-01-27 |
| 6660966 | Electric arc welding system | William S. Houston, Russell K. Myers | 2003-12-09 |
| 6600134 | Power supply for electric arc welding | — | 2003-07-29 |
| 6570131 | Electric arc welder with arc starter | — | 2003-05-27 |
| 6501049 | Short circuit arc welder and method of controlling same | — | 2002-12-31 |
| 6489592 | Tandem electrode welder and method of welding with two electrodes | Steven R. Peters | 2002-12-03 |
| 6472634 | Electric arc welding system | William S. Houston, Russell K. Myers | 2002-10-29 |
| 6365874 | Power supply for electric arc welding | — | 2002-04-02 |
| 6365864 | Cleaning device for welding wire and method of cleaning welding wire | — | 2002-04-02 |
| 6291798 | Electric ARC welder with a plurality of power supplies | — | 2001-09-18 |
| 6274845 | Method and apparatus for electric arc welding | Christopher Hsu, Peter Nicholson | 2001-08-14 |
| 6215100 | Short circuit welder | — | 2001-04-10 |
| 6207929 | Tandem electrode welder and method of welding with two electrodes | Steven R. Peters | 2001-03-27 |
| 6204478 | Method of pipe welding | Peter Nicholson | 2001-03-20 |
| 6172333 | Electric welding apparatus and method | — | 2001-01-09 |
| 6160241 | Method and apparatus for electric arc welding | Peter Nicholson, Christopher Hsu | 2000-12-12 |
| 6111216 | High current welding power supply | — | 2000-08-29 |
| 6093906 | Method of pipe welding | Peter Nicholson | 2000-07-25 |
| 6051810 | Short circuit welder | — | 2000-04-18 |
| 6025573 | Controller and method for pulse welding | — | 2000-02-15 |