Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8054734 | Objective lens and optical pickup comprising the objective lens | Stephan Knappmann, Joachim Knittel | 2011-11-08 |
| 7660078 | Slider with a constant flying height | Stephan Knappmann | 2010-02-09 |