Top Inventors at Tractel Sas All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Andre Desplats | 5 |
| 2 | Claude Castagnoli | 2 |
| 3 | Francois Quirin | 1 |
| #4 | Guido Gortan | 1 |
| #5 | Jean-Yves Bosc | 1 |
| #6 | Patrick Copin | 1 |
| #7 | Patrick Giraud | 1 |
| #8 | Patrick Vieux | 1 |
| #9 | Maksimiljan Cencic | 1 |
| #10 | Hans Klabunde | 1 |
| #11 | Bernard Batreau | 1 |
| #12 | Jacques De Ceuster | 1 |
| #13 | Jean-Michel Koludzki | 1 |