Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6076930 | Process for fitting a contact lens, and measuring lens for performing the process | Volker Malchow, Klaus Grimmenstein | 2000-06-20 |
| 5971542 | Multifocal contact lens | Malchow Volker, Klaus Grimmenstein | 1999-10-26 |
| 5100225 | Contact lens having position stabilization | — | 1992-03-31 |