Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6839312 | Copy protection of digital audio compact discs | Richard A. A. Heylen | 2005-01-04 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6839312 | Copy protection of digital audio compact discs | Richard A. A. Heylen | 2005-01-04 |