Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8530789 | Power module cartridge | David Perrin, Lawrence A. Boehnlein | 2013-09-10 |
| 7999209 | Wire drive for wire feeder and spool gun | David Perrin | 2011-08-16 |
| 7646281 | Snap-together choke and transformer assembly for an electric arc welder | Lawrence A. Boehnlein, Larry B. Solski, Dale L. Bilczo | 2010-01-12 |