Top Inventors at Marathon Letourneau All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Dwight Baker | 3 |
| 2 | Donald W. Schaper | 2 |
| 3 | Erwin F. Stoldt | 2 |
| #4 | Gary L. Nelson | 2 |
| #5 | Ronald A Johnston | 2 |
| #6 | Harvey J. Pippen | 1 |
| #7 | Julian F. Bowes | 1 |
| #8 | Paul L. Kelsey | 1 |
| #9 | Glenn A. Shankle | 1 |
| #10 | Richard D. Baney | 1 |