Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7771053 | Method and apparatus for online contact lens evaluation | Hans-Joachim Polland, Stefan Seitz, Kristian Hohla, Gerhard Youssefi, Ernst Hegels +1 more | 2010-08-10 |
| 7625089 | Wavefront sensor having multi-power beam modes, independent adjustment camera, and accommodation range measurement | Gerhard Youssefi, Hans-Joachim Polland | 2009-12-01 |
| 7036934 | Wavefront sensor having multi-power modes, independent adjustment camera, and accommodation range measurement | Gerhard Youssefi, Hans-Joachim Polland | 2006-05-02 |