Top Inventors at Precision Handling Devices All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Gregory A. Ferguson | 15 |
| 2 | Leo J. Kerivan | 5 |
| 3 | Leo J. Hubbard | 3 |
| #4 | David Gallot | 1 |
| #5 | Dohn D. Hubbard, II | 1 |
| #6 | John Dana Hubbard | 1 |
| #7 | Ronald J. Kobryn | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Gregory A. Ferguson | 15 |
| 2 | Leo J. Kerivan | 5 |
| 3 | Leo J. Hubbard | 3 |
| #4 | David Gallot | 1 |
| #5 | Dohn D. Hubbard, II | 1 |
| #6 | John Dana Hubbard | 1 |
| #7 | Ronald J. Kobryn | 1 |