Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Albert A. Mullins, II | Baker International | 2 |
| 2 | Richard E. Schmid | — | 1 |
| 2 | Daniel Turner | — | 1 |
| 2 | Charles F. Cook | Phillips Petroleum | 1 |
| 2 | Rick A. Kneisley | — | 1 |
| 2 | James D. Burley | ExxonMobil | 1 |
| 2 | Max E. Duke | — | 1 |
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