Top Inventors at Porvair All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kenneth R. Butcher | 4 |
| 2 | Gary Pickrell | 3 |
| 3 | Chi-Li Lin | 2 |
| #4 | Brian Smith | 1 |
| #5 | Donald Earl Floyd, II | 1 |
| #6 | John M. Woodcock | 1 |
| #7 | Arthur W. R. Balkham | 1 |
| #8 | George J. Kleinerman | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Kenneth R. Butcher | 4 |
| 2 | Gary Pickrell | 3 |
| 3 | Chi-Li Lin | 2 |
| #4 | Brian Smith | 1 |
| #5 | Donald Earl Floyd, II | 1 |
| #6 | John M. Woodcock | 1 |
| #7 | Arthur W. R. Balkham | 1 |
| #8 | George J. Kleinerman | 1 |