Top Inventors at Psa All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Terrance H. Gray | 6 |
| 2 | Kristen K. Hedstrom | 4 |
| 3 | William V. Shaffer | 4 |
| #4 | Claude Nail | 1 |
| #5 | François Buron | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Terrance H. Gray | 6 |
| 2 | Kristen K. Hedstrom | 4 |
| 3 | William V. Shaffer | 4 |
| #4 | Claude Nail | 1 |
| #5 | François Buron | 1 |