Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461427 | Barium doping of molten silicon for use in crystal growing process | Steven Jack Keltner, John D. Holder | 2002-10-08 |
| 6447601 | Crystal puller and method for growing monocrystalline silicon ingots | Larry E. Drafall, Kirk D. McCallum | 2002-09-10 |
| 6350312 | Strontium doping of molten silicon for use in crystal growing process | Steven Jack Keltner, John D. Holder | 2002-02-26 |