Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Djurre Hans Zijsling | Shell Oil Compny | 3 |
| 2 | Colin Davidson | Dowell Schlumberger Incorporated | 2 |
| 3 | Ronald A. Lieffering | Shell Oil Compny | 1 |
| 3 | Jules M. Willemse | Lever Brothers | 1 |
| 3 | Rajgopal S. Menon | — | 1 |
| 3 | Abe Steiginga | Shell Oil Compny | 1 |
| 3 | Pleun Marinus Van Der Sman | Shell Oil Compny | 1 |
| 3 | Willem Huizer | Shell Oil Compny | 1 |
| 3 | Janos Boder | Lever Brothers | 1 |
| 3 | Pieter J. Bontenbal | Shell Internationale Research Maatschappij B.V. | 1 |
| 3 | Peter K. Currie | Shell Oil Compny | 1 |
| 3 | Johannes Cornelis Maria Van Dongen | Shell Oil Compny | 1 |