Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Thomas F. Kappel | Mallinckrodt Medical | 2 |
| 1 | Robert H. Graebe | Unknown | 2 |
| 3 | Sina Ghatan | Nu-Chem | 1 |
| 3 | Raymond A. Crisio, Jr. | — | 1 |
| 3 | Leroy W. Heilmann | Nooter | 1 |
| 3 | Calvin L. Guthrie | Roho | 1 |
| 3 | C. David Auman | — | 1 |
| 3 | Michelle M. Cervenka | Ethyl Petroleum Additives | 1 |
| 3 | M. Brent McClane | — | 1 |
| 3 | Robert H. Heil | 3M | 1 |
| 3 | Richard L. Brady | Hercules | 1 |
| 3 | John S. Klotz | — | 1 |
| 3 | John C. Hammel | — | 1 |
Part of Illinois