Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7499219 | Optimized lens for indirect ophthalmoscopy | Steven D. Cech, Sean P. McGinnis | 2009-03-03 |
| 7338170 | Lens systems for vitreoretinal surgery | Steven D. Cech, Kakarla V. Chalam, Gerald Kotnik | 2008-03-04 |
| D523881 | Ophthalmic lens | Gerald Kotnik | 2006-06-27 |
| 4850133 | Spring loaded ecology bug catcher | Louis Burzdak | 1989-07-25 |