Top Inventors at Duphar International Research B.V. 1989
Showing 1–22 of 22 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Kobus Wellinga | 2 |
| 1 | Ineke van Wijngaarden | 2 |
| 1 | Jan Hartog | 2 |
| 1 | Johannes E. Steenhuisen | 2 |
| #5 | Wouter Wouters | 1 |
| #5 | Lneke van Wijngaarden | 1 |
| #5 | Martinus T. M. Tulp | 1 |
| #5 | Paulus R. Kamstra | 1 |
| #5 | Rudolf Mulder | 1 |
| #5 | Cornelis G. Kruse | 1 |
| #5 | Gerrit Grotenhuis | 1 |
| #5 | Gillis P. van der Wal | 1 |
| #5 | Hendrik Dolman | 1 |
| #5 | Hendrik Duinker | 1 |
| #5 | Hugo Bijl | 1 |
| #5 | Jacobus H. H. Eussen | 1 |
| #5 | Jan Willem Marinus Mijers | 1 |
| #5 | Jan Van Dijk | 1 |
| #5 | Johannes Kuipers | 1 |
| #5 | Johannes Mos | 1 |
| #5 | Johannes A. M. Van Der Heyden | 1 |
| #5 | Johannes M. A. Zwagemakers | 1 |