Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8278591 | Cutting method using a laser having at least one ytterbium-based fiber, in which at least the power of the laser source, the diameter of the focused beam and the beam quality factor are controlled | Karim Chouf, Hakim Maazaoui, Francis Briand | 2012-10-02 |
| 7038163 | Use of helium/nitrogen gas mixtures in up to 12 kW laser welding | Francis Briand, Karim Chouf, Philippe Lefebvre | 2006-05-02 |
| 6831248 | Use of helium/nitrogen gas mixtures for the laser welding of stainless steel pipes | Francis Briand, Karim Chouf, Philippe Lefebvre | 2004-12-14 |
| 6815635 | Use of helium/nitrogen gas mixtures for laser welding tailored blanks | Francis Briand, Karim Chouf, Philippe Lefebvre | 2004-11-09 |
| 6770841 | Use of helium/nitrogen gas mixtures in up to 8kW laser welding | Francis Briand, Karim Chouf, Philippe Lefebvre | 2004-08-03 |
| 6025570 | Variable-polarity plasma arc welding process and device | Jean-Marie Fortain, Christian REYMOND | 2000-02-15 |
| 4885455 | Process for terminating closed through-hole plasma arc welding | Jean-Pierre Schultz | 1989-12-05 |
| 4855566 | Process for striking an arc in electric welding and welding torch employing said process | Jean-Francois Hays, Pierre Legrand, Michel Delzenne, Bernard Reynaud, Pierre Gaillard | 1989-08-08 |