Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5440576 | Branched MOPA device with phased array of amplifiers | David F. Welch, Robert J. Lang, Julian S. Osinski, David G. Mehuys, Robert G. Waarts | 1995-08-08 |
| 5337328 | Semiconductor laser with broad-area intra-cavity angled grating | Robert J. Lang, Donald R. Scifres, David F. Welch | 1994-08-09 |
| 5231642 | Semiconductor ring and folded cavity lasers | Donald R. Scifres, Robert G. Waarts, David F. Welch, Amos A. Hardy, Stephen O'Brien | 1993-07-27 |