Top Inventors at Dental Research All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Charles Leonhardt | 2 |
| 2 | John C. Busby | 2 |
| 3 | John M. Trenary | 2 |
| #4 | Cleve A. Graham | 1 |
| #5 | George S. Clemens | 1 |
| #6 | Spencer L. Mackay | 1 |
| #7 | Alan Crawford | 1 |
| #8 | Allan B. Johnson | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Charles Leonhardt | 2 |
| 2 | John C. Busby | 2 |
| 3 | John M. Trenary | 2 |
| #4 | Cleve A. Graham | 1 |
| #5 | George S. Clemens | 1 |
| #6 | Spencer L. Mackay | 1 |
| #7 | Alan Crawford | 1 |
| #8 | Allan B. Johnson | 1 |