Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John W. Spirk | Nottingham Spirk Design Associates | 7 |
| 2 | James D. Burrington | The Lubrizol | 2 |
| 3 | Thomas E. Corbo | Manco | 1 |
| 3 | Carl V. Santoiemmo | Ranpak | 1 |
| 3 | Robert J. deFasselle | Unknown | 1 |
| 3 | Hugh T. Greenlee | Fox Valley Instrument | 1 |
| 3 | William A. Higgins | The Lubrizol | 1 |
| 3 | Don W. Cochran | Pressco Technology | 1 |
Part of Ohio