Top Inventors at Protective Industries All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Frederick W. Zeyfang | 27 |
| 2 | William H. Sardini | 2 |
| 3 | Brian Mayo | 1 |
| #4 | John Charles Meidenbauer | 1 |
| #5 | Rederick W. Zeyfang | 1 |
| #6 | Timothy Chase | 1 |
| #7 | Cory Michael Sierant | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Frederick W. Zeyfang | 27 |
| 2 | William H. Sardini | 2 |
| 3 | Brian Mayo | 1 |
| #4 | John Charles Meidenbauer | 1 |
| #5 | Rederick W. Zeyfang | 1 |
| #6 | Timothy Chase | 1 |
| #7 | Cory Michael Sierant | 1 |