Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Menno Willem Jose Prins | Philips | 1 |
| 1 | Bernardus Antonius Maria Zwaans | Philips | 1 |
| 1 | Ronaldus Roling | Varco I/P | 1 |
| 1 | Marcellinus F. Ottow | Townsend Engineering | 1 |
4 patents · 4 inventors
Ranked #9,387 of 28,648 cities Top 35%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Menno Willem Jose Prins | Philips | 1 |
| 1 | Bernardus Antonius Maria Zwaans | Philips | 1 |
| 1 | Ronaldus Roling | Varco I/P | 1 |
| 1 | Marcellinus F. Ottow | Townsend Engineering | 1 |