Top Inventors at N.V. Optische Industrie "De Oude Delft" All Time
Showing 1–28 of 28 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Ronald J. Geluk | 6 |
| 1 | Simon Duinker | 6 |
| 3 | Johannes J. Houtkamp | 4 |
| #4 | Eduard A. Burgemeister | 2 |
| #4 | Frits J. Versteeg | 2 |
| #4 | Hendrik Mulder | 2 |
| #4 | Hugo Vlasbloem | 2 |
| #4 | Lambertus Karel Van Geest | 2 |
| #4 | Abraham Groeneweg | 2 |
| #10 | Augustinus J. Cuelenaere | 1 |
| #10 | Frank Gustaaf Debruin | 1 |
| #10 | Gijsbert L. Oomen | 1 |
| #10 | Horst Auf dem Graben | 1 |
| #10 | Jacob S. Baumann | 1 |
| #10 | Johannes Maria Thijssen | 1 |
| #10 | Willem Johannes Maria Verbeek | 1 |
| #10 | Hubertus J. Berbee | 1 |
| #10 | Hendrik J. Voute | 1 |
| #10 | Terence C. McStravick | 1 |
| #10 | Abraham Vingerling | 1 |
| #10 | Adrianus Mook | 1 |
| #10 | Bertus Schoonmade | 1 |
| #10 | Peter Sipkes | 1 |
| #10 | Jac Arbouw | 1 |
| #10 | Johan H. M. Deltrap | 1 |
| #10 | Hendrik v. Oosten | 1 |
| #10 | Herbert Weindanz | 1 |
| #10 | Johannes Breemer | 1 |