Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6899760 | Silicon single crystal growing furnace supplemented with low melting point dopant feeding instrument and the low melting point dopant feeding method thereof | Ill Soo Choi | 2005-05-31 |
| 5254829 | Use of a plasma torch to open a tap hole in a metal furnace | Michel G. Drouet, Jean-Luc Meunier | 1993-10-19 |
| 5017754 | Plasma reactor used to treat powder material at very high temperatures | Michel G. Drouet | 1991-05-21 |