Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5793521 | Differentially patterned pumped optical semiconductor gain media | Stephen O'Brien, Alexander Schoenfelder, Robert J. Lang, Ross A. Parke, David F. Welch | 1998-08-11 |
| 5539571 | Differentially pumped optical amplifer and mopa device | David F. Welch, Donald R. Scifres, Robert G. Waarts, David G. Mehuys, Ross A. Parke | 1996-07-23 |
| 5255332 | NxN Optical crossbar switch matrix | David F. Welch, Donald R. Scifres, Robert G. Waarts, David G. Mehuys, Stephen O'Brien | 1993-10-19 |
| 5231642 | Semiconductor ring and folded cavity lasers | Donald R. Scifres, Kenneth M. Dzurko, Robert G. Waarts, David F. Welch, Stephen O'Brien | 1993-07-27 |
| 5159604 | Antiguided semiconductor laser array with edge reflectors | David G. Mehuys, David F. Welch, Robert G. Waarts, Donald R. Scifres | 1992-10-27 |