Showing 1–29 of 29 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ronald L. Schmidt, Jr. | Peabody Myers | 5 |
| 1 | Dale Walker | — | 5 |
| 1 | Roland E. Shaddock | Peabody Myers | 5 |
| #4 | Bernie Jon Bossom | Federal Signal | 3 |
| #4 | Phillip G. Spaniol | — | 3 |
| #6 | Benjamin Bacha | Federal Signal | 2 |
| #6 | John Murtaugh | Philips | 2 |
| #6 | Bryan L. Risley | Transco Products | 2 |
| #6 | Bruce E. Richards | Carus | 2 |
| #6 | Christian O. Erb | — | 2 |
| #6 | Arthur O. Koltveit | — | 2 |
| #12 | Steven N. Olson | — | 1 |
| #12 | Ronald C. Wagner | — | 1 |
| #12 | David Wargo | — | 1 |
| #12 | Susan B. Wargo | — | 1 |
| #12 | Craig V. Sanford | Commonwealth Edison | 1 |
| #12 | Ralph Voigts | — | 1 |
| #12 | Randal M. Lewis | — | 1 |
| #12 | Frederick R. Gorell | Transco | 1 |
| #12 | William T. Darrow | University Of Illinois | 1 |
| #12 | Cooper Melvin | Caterpillar | 1 |
| #12 | Eric Harcharik | — | 1 |
| #12 | Dian Wilkinson | — | 1 |
| #12 | Grant E. Splear | Aventis Cropscience S.A. | 1 |
| #12 | Susan L. Wheatland | — | 1 |
| #12 | George W. Boehne | — | 1 |
| #12 | Gerald R. Spivey | — | 1 |
| #12 | Betty J. Spivey | — | 1 |
| #12 | Virl R. Voights | Caterpillar | 1 |
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