Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5032315 | Phosphate glass useful in high power lasers | Joseph Hayden | 1991-07-16 |
| 4929387 | Phosphate glass useful in high power lasers | Joseph Hayden, David L. Sapak | 1990-05-29 |