Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Thomas Helbig | Astenjohnson | 3 |
| 2 | Calvin M. Clark | — | 1 |
| 2 | Marcus Stetson | — | 1 |
| 2 | Dennis J. Greene | Kennametal | 1 |
| 2 | John E. Remillard | — | 1 |
| 2 | James A. DeCarteret | Ingersoll-Rand | 1 |
Part of Massachusetts