Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961863 | Short circuit pipe welding | — | 1999-10-05 |
| 5742029 | Method of welding wallpaper alloy an arc welder modified to practice same | Peter Nicholson | 1998-04-21 |
| 5715150 | Inverter output circuit | — | 1998-02-03 |
| 5683602 | Welding power supply | — | 1997-11-04 |
| 5148001 | System and method of short circuiting arc welding | — | 1992-09-15 |
| 5117088 | Device and method for starting electric arc of a welder | — | 1992-05-26 |
| 5003154 | Apparatus and method of short circuiting arc welding | John M. Parks | 1991-03-26 |
| 5001326 | Apparatus and method of controlling a welding cycle | — | 1991-03-19 |
| 4972064 | Apparatus for short circuiting arc welding | — | 1990-11-20 |
| 4954691 | Method and device for controlling a short circuiting type welding system | John M. Parks | 1990-09-04 |
| 4947021 | Method and apparatus for TIG welding | — | 1990-08-07 |
| 4897523 | Apparatus and method of short circuiting arc welding | John M. Parks | 1990-01-30 |
| 4866247 | Apparatus and method of short circuiting arc welding | John M. Parks | 1989-09-12 |
| 4861965 | Method and apparatus for TIG welding | — | 1989-08-29 |
| 4835360 | Method and device for controlling a short circuiting type welding system | John M. Parks | 1989-05-30 |
| 4717807 | Method and device for controlling a short circuiting type welding system | John M. Parks | 1988-01-05 |