Top Inventors at Xact Downhole Telemetry All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Paul L. Camwell | 14 |
| 2 | James M. Neff | 7 |
| 3 | Douglas S. Drumheller | 6 |
| #4 | David D. Whalen | 5 |
| #5 | Derek W. Logan | 3 |
| #6 | John-Peter van Zelm | 3 |
| #7 | John Godfrey McRory | 2 |
| #8 | Anthony R. Dopf | 2 |
| #9 | Celine J. Martineau | 1 |
| #10 | Edwin I. Hildebrandt | 1 |
| #11 | Wendall Siemens | 1 |
| #12 | Andrzej M. Sendyk | 1 |