Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604003 | Optical information carrier | James Coombs, Wilma Van Es-Spiekman, Bernardus A. J. Jacobs | 1997-02-18 |
| 5459704 | Optical reader for record carriers with different information densities | Cornelis M. J. Van Uijen | 1995-10-17 |
| 5442619 | Erasable optical recording medium with a reversible light absorption layer | Cornelis M. J. Van Uijen | 1995-08-15 |
| 5235583 | Optical scanning for record carriers adapted for reading with differing wavelengths | Gerard E. Van Rosmalen | 1993-08-10 |