Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8355835 | System for demarcating an area | Karel Van Den Berg, Jan Martinus Van Kuilenburg | 2013-01-15 |
| 7997233 | System for demarcating an area | Karel Van Den Berg, Jan Marinus Van Kuilenburg | 2011-08-16 |
| 7573223 | Device for demarcating an area | Karel Van Den Berg, Jan Martinus Van Kuilenburg | 2009-08-11 |