Top Inventors at Macgregor International, S.A. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | George J. Leitch | 2 |
| 2 | Henri Kummerman | 1 |
| 3 | Kiyoshi Onodera | 1 |
| #4 | Kikuo Yamada | 1 |
| #5 | Jacques Biaggi | 1 |
| #6 | Pieter van de Werken | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | George J. Leitch | 2 |
| 2 | Henri Kummerman | 1 |
| 3 | Kiyoshi Onodera | 1 |
| #4 | Kikuo Yamada | 1 |
| #5 | Jacques Biaggi | 1 |
| #6 | Pieter van de Werken | 1 |