Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5878019 | Record carrier having at least two information volumes | Erik C. Schylander, Jos G. Schepers, Adrianus H. Dieleman | 1999-03-02 |
| 5684786 | Record carrier having an information volume including audio information and an information volume including additional non-audio information | Erik C. Schylander, Jos G. Schepers, Adrianus H. Dieleman | 1997-11-04 |
| 5341356 | Method and device for recording information volumes in a track of a record carrier, and a device for reading the record carrier | Adrianus H. Dieleman, Jos G. Schepers | 1994-08-23 |
| 5206063 | Optical recording element with ROM and recording regions | — | 1993-04-27 |