Top Inventors at Petrocarbon Developments Limited All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Wieslaw H. Isalski | 4 |
| 2 | Terence R. Tomlinson | 3 |
| 3 | Gregory J. Ashton | 2 |
| #4 | Melvyn Duckett | 2 |
| #5 | Colin Hubbard | 1 |
| #6 | David I. Limb | 1 |
| #7 | David Salisbury | 1 |
| #8 | Donald R. Cummings | 1 |
| #9 | Martin S. W. Ruhemann | 1 |
| #10 | Alan A. Haslam | 1 |