Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8269143 | Wire feed control assembly | Mark Richard Christopher, Jerry Piechowski | 2012-09-18 |
| 7767934 | Torch feed roll adjustment lever | Mark Richard Christopher, Jerry Piechowski | 2010-08-03 |
| 7723644 | Torch having multi-path gas delivery system | Mark Richard Christopher, Jerry Piechowski | 2010-05-25 |
| 7465902 | Wire feed control assembly | Mark Richard Christopher, Jerry Piechowski | 2008-12-16 |