Showing 1–25 of 25 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | William J. Spivey, Jr. | Caterpillar | 4 |
| 2 | William A. Abel | Cng Research | 3 |
| 2 | Carl A. Udovich | Amoco | 3 |
| #4 | Larry W. Lorimor | Caterpillar | 2 |
| #4 | James R. Missig | Liquid Carbonic | 2 |
| #6 | Eugene M. Wilson | Caterpillar | 1 |
| #6 | Lawrence F. Schexnayder | Caterpillar | 1 |
| #6 | Paul J. Lukavich | Caterpillar | 1 |
| #6 | Michael P. Duff | Chicago Bridge & Iron | 1 |
| #6 | James Stogis | Witco Chemical | 1 |
| #6 | Jerrold R. Asal | Caterpillar | 1 |
| #6 | Leon A. Wirt | Caterpillar | 1 |
| #6 | William G. Sieffert | Champion International Corporation Limited | 1 |
| #6 | Raymond V. Kambic | R.R. Brink Locking Systems | 1 |
| #6 | Suren V. Seron | Seron Manufacturing | 1 |
| #6 | Francis V. Bellafiore | Chicago Bridge & Iron | 1 |
| #6 | Larry G. Warren | Caterpillar | 1 |
| #6 | Cyril W. Habiger | Caterpillar | 1 |
| #6 | Robert D. Dorris | Caterpillar | 1 |
| #6 | Dennis J. Schauer | — | 1 |
| #6 | Gary P. Freese | Caterpillar | 1 |
| #6 | Donald J. Larson | Dresser-Rand | 1 |
| #6 | James D. Rinaldo | Caterpillar | 1 |
| #6 | Thomas J. Hajek, Jr. | Caterpillar | 1 |
| #6 | David M. O'Meara | Chicago Bridge & Iron | 1 |
Part of Illinois