Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689123 | III-V aresenide-nitride semiconductor materials and devices | David F. Welch, Donald R. Scifres | 1997-11-18 |
| 5644584 | Tunable blue laser diode | Derek W. Nam, David F. Welch, Robert G. Waarts | 1997-07-01 |