Top Inventors at Quest International Services B.V. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Jeremy Nicholas Ness | 5 |
| 2 | Chris Winkel | 4 |
| 3 | Harry Renes | 4 |
| #4 | Keith Douglas Perring | 4 |
| #5 | Jan Visser | 2 |
| #6 | Roger John Henry Duprey | 2 |
| #7 | Bart Ruisch | 1 |
| #8 | Christine Nagel | 1 |
| #9 | Christopher Paul Newman | 1 |
| #10 | Charles Stanley Sell | 1 |
| #11 | David C. Hooper | 1 |
| #12 | David McNulty | 1 |
| #13 | David Munro | 1 |
| #14 | Ester van Ommeren | 1 |
| #15 | Heather Eyre | 1 |
| #16 | Isabelle Stefanesco | 1 |
| #17 | Jan Bakker | 1 |
| #18 | Jan Thomas HAINES | 1 |
| #19 | Jean-Pierre Houri | 1 |
| #20 | John Martin Behan | 1 |
| #21 | Joseph Brain | 1 |
| #22 | John McNamee | 1 |
| #23 | Karl Swift | 1 |
| #24 | Kathleen Mary Tuck | 1 |
| #25 | Kim Joyce Yarwood | 1 |
| #26 | Nico Bouter | 1 |
| #27 | Olivier Moulin | 1 |
| #28 | Phillipe Durand | 1 |
| #29 | Richard Arthur Birch | 1 |
| #30 | Sander van Tondeur | 1 |
| #31 | Shibani Mohindra | 1 |
| #32 | Simon Ellwood | 1 |
| #33 | Stephen David Watkins | 1 |
| #34 | Terence Goodacre | 1 |
| #35 | Anthony Alexander Birkbeck | 1 |