Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ralph H. Echols | Halliburton Energy Services | 4 |
| 2 | Stephen P. Fenton | Vetco Gray | 3 |
| 3 | David S. Christie | AMD | 2 |
| #4 | Alexandre Kosmala | Schlumberger Technology | 1 |
| #4 | Thomas R. Smith | Ashland Licensing And Intellectual Property | 1 |
| #4 | Ian Calder | Abb Vetco Gray | 1 |
| #4 | Jeffrey E. Toulouse | Baker Hughes Holdings | 1 |
| #4 | James McNicol | Baker Hughes Holdings | 1 |
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