Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5157529 | Display device having wavelength-dependent birefringence compensation | Hendrik Adrianus Van Sprang | 1992-10-20 |
| 4767191 | Display cell | Hendrik Adrianus Van Sprang, Franciscus J. M. Wortel | 1988-08-30 |