Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert M. Williams | Williams Patent Crusher And Pulverizer | 4 |
| 2 | John W. Olney | Washington University | 3 |
| 3 | Richard H. Blanke, Jr. | JPMorgan Chase | 1 |
| 3 | Richard B. Brundage | Emerson Electric | 1 |
| 3 | Irving Powers | — | 1 |
| 3 | Paul Gildehaus, III | — | 1 |
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