Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert L. LaBarge | Aluminum Company Of America | 12 |
| 2 | Robert L. La Barge | Aluminum Company Of America | 10 |
| 3 | Robert P. Kinross | Eplus | 3 |
| 3 | Rowland C. Rudolf, III | Allegheny Ludlum | 3 |
Part of Pennsylvania