Top Inventors at Spang All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Peter C. Hill | 8 |
| 2 | John Underbrink | 6 |
| 3 | Ernest L. Thornell | 4 |
| #4 | Joseph Huth | 4 |
| #5 | Mary K. Litwicki | 2 |
| #6 | Donald Cattoni | 1 |
| #7 | Mark A. Fanton | 1 |
| #8 | Michael E. McHenry | 1 |
| #9 | Paul R. Ohodnicki | 1 |
| #10 | Robert W. Olmsted | 1 |
| #11 | Samuel J. Kernion | 1 |
| #12 | Tony R. Maness | 1 |
| #13 | Vladimir Keylin | 1 |
| #14 | Alex M. Leary | 1 |