Top Inventors at Multi-Shifter All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Dale A. Williams | 5 |
| 2 | Eric Douglas Springston, II | 5 |
| 3 | John R. Pratt | 5 |
| #4 | John Lyles | 1 |
| #5 | John Schoenma ker | 1 |
| #6 | John Schoenmaker | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Dale A. Williams | 5 |
| 2 | Eric Douglas Springston, II | 5 |
| 3 | John R. Pratt | 5 |
| #4 | John Lyles | 1 |
| #5 | John Schoenma ker | 1 |
| #6 | John Schoenmaker | 1 |