Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ralph Ogden | Unknown | 5 |
| 2 | William L. Forsythe, Jr. | Standard Oil Company (Indiana) | 2 |
| 2 | James D. Parsons | Heetronix | 2 |
| #4 | Donald C. Walker | Aksys Gmbh | 1 |
| #4 | Gary Lynn | — | 1 |
| #4 | Holton C. Easter | Inland Steel | 1 |
| #4 | Yong-Wu Kim | Inland Steel | 1 |
| #4 | Arthur Schwarz | Inland Steel | 1 |
| #4 | Ernest J. Nagy | The Pullman | 1 |
| #4 | Astrid-Ilsaabe Phillips | Ferro | 1 |
| #4 | Wade L. Van Winkle | National Steel | 1 |
| #4 | Kenneth A. Gebler | Nalco Chemical | 1 |
Part of Indiana