Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6071293 | Automatic microkeratome | — | 2000-06-06 |
| 5110590 | Use of a solution of alpha-chymotrypsin | — | 1992-05-05 |
| 5108412 | Suction ring for surgical operations on the human eye | Norbert Quast | 1992-04-28 |
| 5011498 | Cutting apparatus for the cutting of a round corneal disc | Norbert Quast | 1991-04-30 |
| 4884570 | Device for retaining a disc obtained from a human cornea | Norbert Quast | 1989-12-05 |
| 4865033 | Device for holding a cornea taken from a donated eye | Lee Nordan | 1989-09-12 |
| 4844060 | Fixation ring for radial keratotomy | — | 1989-07-04 |
| 4695458 | Solution of alpha-chymotrypsin | — | 1987-09-22 |