Top Inventors at Worldwide Oilfield Machine All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Alagarsamy Sundararajan | 9 |
| 2 | PRASHANT N AKHARE | 3 |
| 3 | Tom McCreadie | 3 |
| #4 | William W. Lanning | 3 |
| #5 | Dennis D. George | 1 |
| #6 | Frank Meyer | 1 |
| #7 | John Paul Ribeyre | 1 |
| #8 | Ninad Ashok Oak | 1 |
| #9 | Rahul Patil | 1 |
| #10 | Reddi Udaya Bhaskara Rao | 1 |
| #11 | Robert Earl Maki | 1 |
| #12 | Robert Eric Maki | 1 |
| #13 | Vijay Chatufale | 1 |
| #14 | D. Sudhir Puranik | 1 |