Top Inventors at Didde Graphic Systems All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Howard L. Propheter | 3 |
| 2 | Carlton A. Bird | 1 |
| 3 | Daniel Dillinger | 1 |
| #4 | Dean E. Gladow | 1 |
| #5 | Frank Ury | 1 |
| #6 | Gary L. Romine | 1 |
| #7 | John Howard | 1 |
| #8 | Michael Shackelford | 1 |
| #9 | Paul D. Naab | 1 |
| #10 | Terry N. Faddis | 1 |
| #11 | Thomas Dewayne Parks | 1 |
| #12 | Wayne L. Osborn | 1 |
| #13 | Woodrow W. Pendleton | 1 |
| #14 | Ronnie L. Rodvelt | 1 |