Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831248 | Use of helium/nitrogen gas mixtures for the laser welding of stainless steel pipes | Francis Briand, Philippe Lefebvre, Eric Verna | 2004-12-14 |
| 6815635 | Use of helium/nitrogen gas mixtures for laser welding tailored blanks | Francis Briand, Philippe Lefebvre, Eric Verna | 2004-11-09 |
| 6770841 | Use of helium/nitrogen gas mixtures in up to 8kW laser welding | Francis Briand, Philippe Lefebvre, Eric Verna | 2004-08-03 |