Top Inventors at Grayling Industries All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kurt D. Ross | 7 |
| 2 | Kurt Hittler | 4 |
| 3 | Randy R. Sullinger | 3 |
| #4 | Tony R. McKee | 1 |
| #5 | Craig Proctor Navin | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Kurt D. Ross | 7 |
| 2 | Kurt Hittler | 4 |
| 3 | Randy R. Sullinger | 3 |
| #4 | Tony R. McKee | 1 |
| #5 | Craig Proctor Navin | 1 |