Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Josef W. Schwarzli | Machine-O-Matic Limited | 6 |
| 2 | Robert G. Lau | Federal-Hoffman | 3 |
| 3 | John H. Saringer | Saringer Research | 1 |
| 3 | Gerald W. Smith | Involv International | 1 |
| 3 | Patrick M. Y. Waye | Mine Radio Systems | 1 |
| 3 | Robert J. Prince | — | 1 |