Top Inventors at Portal Instruments All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Robert J. Dyer | 19 |
| 2 | Andrew Coats | 15 |
| 3 | Patrick Armand Anquetil | 9 |
| #4 | Ian W. Hunter | 7 |
| #5 | Carl Tappan | 6 |
| #6 | Eric J. VanWyk | 6 |
| #7 | Nikola Kojic | 4 |
| #8 | Nickolay Lapin | 3 |
| #9 | Alan Xu | 3 |
| #10 | Bridget Hunter-Jones | 2 |
| #11 | Nikolay Lapin | 2 |
| #12 | Pragun Goyal | 2 |
| #13 | Jessica L. Ong | 1 |
| #14 | Jeffrey Scott Plantz | 1 |
| #15 | Matthew Kilduff | 1 |
| #16 | Marc Pelletier | 1 |
| #17 | Mark Philip | 1 |
| #18 | Marc Tappeiner | 1 |
| #19 | Rud Karly Lucien | 1 |
| #20 | Serge Roux | 1 |
| #21 | Tyler F. Barkin | 1 |
| #22 | Gillian Brenna Corcoran | 1 |
| #23 | Andrea Natalina Mary Fernandes | 1 |