Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6723956 | Pulsed-arc welding process and device | Francis Briand, Christophe Mas, Jean-Pierre Eyschen | 2004-04-20 |
| 6230327 | Protective mask for welding with viewing in the infrared and use of such a mask | Francis Briand | 2001-05-15 |