Top Inventors at Ash Grove Cement All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Eric R. Hansen | 22 |
| 2 | James R. Tutt | 18 |
| 3 | Michel R. Benoit | 10 |
| #4 | Theodore J. Reese | 9 |
| #5 | Ralph A. Supelak | 7 |
| #6 | Gregory S. Barger | 2 |
| #7 | Hoke M. Garrett | 2 |
| #8 | Peter F. Way | 2 |
| #9 | Charles Peterson | 1 |
| #10 | Harry Harris | 1 |
| #11 | John Cody | 1 |
| #12 | Kevin Blankenship | 1 |
| #13 | Kenneth J. Derksen | 1 |
| #14 | Michael P. Heap | 1 |
| #15 | Walter Parker | 1 |
| #16 | Ronald John Vidergar | 1 |