Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Adrianus J. M. Scheffers | Assenburg, B.V. | 2 |
| 2 | Franciscus G. Vugts | Whitaker & | 1 |
| 2 | Fred van Wolffelaar | — | 1 |
4 patents · 3 inventors
Ranked #7,257 of 22,654 cities Top 35%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Adrianus J. M. Scheffers | Assenburg, B.V. | 2 |
| 2 | Franciscus G. Vugts | Whitaker & | 1 |
| 2 | Fred van Wolffelaar | — | 1 |