Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7801327 | Record carrier with watermark | Gertjan Yntema, Antonius Jacobus Johannes Werner | 2010-09-21 |
| 7263201 | Record carrier with watermark | Gertjan Yntema, Antonius Jacobus Johannes Werner | 2007-08-28 |