Showing 1–11 of 11 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Johannes H. M. Rek | Lever Brothers | 2 |
| 1 | Willem Dijkshoorn | Lever Brothers | 2 |
| 3 | Hendrik W. Brouwer | Lever Brothers | 1 |
| 3 | Jan Mark van Duijn | Internationale Otrool Maatschappij Octropa B.V. | 1 |
| 3 | Adolf J. Haighton | Lever Brothers | 1 |
| 3 | Roelof Keuning | Lever Brothers | 1 |
| 3 | Ulrich Schilp | Lever Brothers | 1 |
| 3 | Peik J. van Waveren | — | 1 |
| 3 | Jacobus N. Pronk | Lever Brothers | 1 |
| 3 | Willem M. M. Mohlmann | Lever Brothers | 1 |
| 3 | Albert Froling | Lever Brothers | 1 |