Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700193 | Virtual pinball/video arcade games | — | 1997-12-23 |
| 5644615 | X-ray collinator having plates with periodic rectangular openings | Johannes Van Der Borst, Theodorus J. J. M. Jenneskens, Jacob Dobben, Christiaan J. Ter Borch, Hendricus G. M. Van Der Wal | 1997-07-01 |