Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6284687 | High refractive index glasses, multifocal corrective lenses containing same | Paulo Gaspar Jorge Marques | 2001-09-04 |
| 6196684 | High refractive index glasses, multifocal corrective lenses containing same | Paulo Gaspar Jorge Marques | 2001-03-06 |