Top Inventors at Varco Shaffer All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | James D. Brugman | 5 |
| 2 | Bryce A. Levett | 3 |
| 3 | David L. O'Donnell | 3 |
| #4 | Melvyn F. Whitby | 3 |
| #5 | Hubert L. Elkins | 2 |
| #6 | Mark A. Merit | 2 |
| #7 | Paul L. Tasson | 2 |
| #8 | Tri C. Le | 2 |
| #9 | Chris D. Johnson | 1 |
| #10 | Christopher Johnson | 1 |
| #11 | David W. Martin | 1 |
| #12 | Esteban Palomo, Jr. | 1 |
| #13 | George Tisdale | 1 |
| #14 | Mark Wesley McLelland | 1 |
| #15 | Mike Nicholson | 1 |
| #16 | Raul Araujo | 1 |
| #17 | Ronald W. Yater | 1 |
| #18 | Frank L. Sklenka | 1 |