Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Thomas K. Weaver | Amazon | 5 |
| 2 | John L. White | American Piledriving Equipment | 4 |
| 3 | Rolf Weberg | E.I. Du Pont De Nemours And | 2 |
| #4 | Harley Oliver Raines | Unknown | 1 |
| #4 | Kenneth Alden Lane | GE | 1 |
| #4 | Jerome Mason | — | 1 |
| #4 | John Thomas Chandler | Agfa-Gevaert Nv | 1 |
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