Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5754720 | Low loss fiber optic coupler and method | Richard Alan Quinn, Christopher D. Robson, David Lee Weidman | 1998-05-19 |
| 5395413 | Method for producing fused silica with low sodium ion contamination level | Daniel R. Sempolinski | 1995-03-07 |
| 5332702 | Low sodium zircon refractory and fused silica process | Daniel R. Sempolinski | 1994-07-26 |