Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11690367 | Arthropod trap and extermination method | — | 2023-07-04 |
| 11039604 | Laying nest with rack drive floor expulsion system | H. G. van Dalen, Johannes Albert Donker | 2021-06-22 |
| 9510567 | Laying nest with expulsion system | Johannes Albert Donker | 2016-12-06 |