Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7102479 | Output choke for D.C. welder and method of using same | Keith Clark | 2006-09-05 |
| 6930580 | Output choke for D.C. welder and method of using same | Keith Clark | 2005-08-16 |
| 6859128 | Output choke for D.C. welder and method of using same | Keith Clark | 2005-02-22 |
| 6194684 | Output choke for D.C. welder and method of using same | Keith Clark | 2001-02-27 |