Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5364487 | Glass-plastic composite | Ronald E. Johnson, Christine M. Reagan, Theresa A. Winer, Lung-Ming Wu | 1994-11-15 |
| 5312689 | Laminated ophthalmic lens | David Dasher, E. Robert Fretz, Jr., Ronald E. Johnson | 1994-05-17 |