Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Rien Verweij | Spring Meadow Nursery | 2 |
| 2 | Herman Geers | Spring Meadow Nursery | 1 |
| 2 | Theodorus Gijsbertus Ravensberg | Goudsche Machinefabriek B.V. | 1 |
| 2 | Pieter Zwijnenburg, Jr. | Spring Meadow Nursery | 1 |
| 2 | Adriana Christina Bastiana Sanders-van Harn | — | 1 |