Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5470626 | Optical recording layers containing sulfur | James C. Fleming, Donald R. Preuss | 1995-11-28 |
| 4801798 | Method and apparatus for measuring optical retardation in transparent materials | — | 1989-01-31 |