Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4722813 | Method and apparatus for spreading monomer mixtures in molds for the centrifugal casting of contact lenses | Otto Wichterle | 1988-02-02 |
| 4568501 | Method and apparatus with automatic feed means for centrifugally casting articles | Otto Wichterle, Vladimir Havlin | 1986-02-04 |