Top Inventors at Expro Meters All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Daniel L. Gysling | 39 |
| 2 | Changjiu Dang | 6 |
| 3 | Patrick Curry | 5 |
| #4 | Timothy J. Bailey | 5 |
| #5 | Gabriel Dragnea | 4 |
| #6 | Mark R. Fernald | 4 |
| #7 | Charles Winston | 3 |
| #8 | Douglas H. Loose | 3 |
| #9 | Michael A. Davis | 3 |
| #10 | Michael Sapack | 3 |
| #11 | Christian V. O'Keefe | 2 |
| #12 | Siddesh Sridhar | 2 |
| #13 | Alan D. Kersey | 2 |
| #14 | Bjorn Dybdahl | 1 |
| #15 | Brian P. Champion | 1 |
| #16 | Carl Gandarillas | 1 |
| #17 | David G. Bellemore | 1 |
| #18 | Edward Beeloo | 1 |
| #19 | Mark E. Sasso | 1 |
| #20 | Minfu Lu | 1 |
| #21 | Paul J. Rothman | 1 |
| #22 | Rebecca M. Bryant | 1 |
| #23 | Robert J. Maron | 1 |
| #24 | Thomas E. Banach | 1 |
| #25 | Trond Kirkerod | 1 |
| #26 | Warren Sneedon | 1 |
| #27 | Abhinav Singh Rawat | 1 |
| #28 | Alexandra Vasil'evna Rogacheva | 1 |
| #29 | Alex M. Van Der Spek | 1 |