Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6430141 | Device for reading from or writing to optical recording media | Christoph Dietrich, Hartmut Richter, Heinz-Jorg Schroeder | 2002-08-06 |
| 6400670 | Device for the writing and/or reading of optical recording media of various structures | — | 2002-06-04 |