Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8857982 | Progressive multifocal rigid gas permeable contact lens | Jeff J. Wittern | 2014-10-14 |
| 8632187 | Progressive multifocal rigid gas permeable contact lens | Jeff J. Wittern | 2014-01-21 |