Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Eelke Gjalt Hempenius | Rockwool International A/S | 7 |
| 2 | Richard Theodorus Antonius Arts | — | 3 |
| 3 | Marianus H. J. M. Zwaans | Grasso'S Koninklijke Machinefabrieken N.V. | 1 |
11 patents · 3 inventors
Ranked #51,096 of 111,555 cities Top 50%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Eelke Gjalt Hempenius | Rockwool International A/S | 7 |
| 2 | Richard Theodorus Antonius Arts | — | 3 |
| 3 | Marianus H. J. M. Zwaans | Grasso'S Koninklijke Machinefabrieken N.V. | 1 |