Top Inventors at International Coal Refining All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Edwin N. Givens | 9 |
| 2 | David S. Hoover | 4 |
| 3 | Edward P. Foster | 4 |
| #4 | John C. Tao | 4 |
| #5 | Ronald W. Skinner | 4 |
| #6 | Robert M. Thorogood | 4 |
| #7 | Burtron H. Davis | 3 |
| #8 | David Hon Sing Ying | 3 |
| #9 | Frank K. Schweighardt | 3 |
| #10 | Kenneth L. Baumert | 3 |
| #11 | Samuel Znaimer | 3 |
| #12 | Alberto A. Sagues | 3 |
| #13 | Dennis R. Lennon | 2 |
| #14 | George W. Roberts | 2 |
| #15 | James C. Bronfenbrenner | 2 |
| #16 | Krishna Tewari | 2 |
| #17 | Chung-Liang Yeh | 1 |
| #18 | Diwaker Garg | 1 |
| #19 | Doohee Kang | 1 |
| #20 | Dohee Kang | 1 |
| #21 | Ernest E. Donath | 1 |
| #22 | Eugene J. Greskovich | 1 |
| #23 | Gerald C. Rappe | 1 |
| #24 | James A. Mulholland | 1 |
| #25 | Peter M. Girling | 1 |
| #26 | Robert N. Miller | 1 |
| #27 | Robert F. Weimer | 1 |
| #28 | Wayne Thomas McDermott | 1 |
| #29 | Ilse S. Kingsley | 1 |
| #30 | George T. Bellas | 1 |
| #31 | Richard B. Snedden | 1 |
| #32 | T. Craig Derbidge | 1 |
| #33 | Frank Schweigharett | 1 |