Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6645352 | Optical data storage disk | Helfried Weinzerl | 2003-11-11 |
| 6351446 | Optical data storage disk | Helfried Weinzerl | 2002-02-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6645352 | Optical data storage disk | Helfried Weinzerl | 2003-11-11 |
| 6351446 | Optical data storage disk | Helfried Weinzerl | 2002-02-26 |