Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Sheila Hamilton | Itw Limited | 9 |
| 2 | Stephen Frank Mitchell | Illinois Tool Works | 2 |
| 3 | William Crookston | — | 1 |
| 3 | Byran Murrin | Omi International | 1 |
| 3 | Roy D. Cannon | — | 1 |
| 3 | Harold Ratcliffe | James Howden & Co. | 1 |