Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5849209 | Mold material made with additives | Ture Kindt-Larsen, Jeffrey Longo, Keith O'Brien, James Jen, Michael F. Widman +1 more | 1998-12-15 |
| 5849222 | Method for reducing lens hole defects in production of contact lens blanks | James Jen, Michael F. Widman | 1998-12-15 |
| 5674557 | Method for transiently wetting lens molds in production of contact lens blanks to reduce lens hole defects | Michael F. Widman, James Jen, John B. Enns | 1997-10-07 |