Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826889 | Dimensionally stable oxygen permeable hard contact lens material and method of manufacture | Edward J. Ellis | 1989-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826889 | Dimensionally stable oxygen permeable hard contact lens material and method of manufacture | Edward J. Ellis | 1989-05-02 |