Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6901044 | Optical information medium and its use | Johannes Rijpers | 2005-05-31 |
| 6861117 | Multi-stack optical data storage medium and use of such medium | Johannes Rijpers | 2005-03-01 |