Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Frank Nijdam | J. Van Walraven Holding B.V. | 5 |
| 2 | Simon Petrus Maria Berkhout | Urban Mining Corp B.V. | 2 |
| 3 | Vincentius Adrianus Franciscus Hoveling | — | 1 |
| 3 | Pieter Gerrit Hannessen | — | 1 |
| 3 | Ronnie Jacobus Samuel NIEUWENBURG | — | 1 |