Showing 1–20 of 20 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | James F. Tobey, Jr. | Agri-King | 10 |
| 2 | Douglas G. Temple | John Deere | 8 |
| 3 | David Spangler | Agri-King | 6 |
| #4 | Leonard T. Lewis | Lenlo Chem | 5 |
| #5 | Gbenga Ayangbile | Agri-King | 4 |
| #5 | Lucas Krueger | Agri-King | 4 |
| #5 | Mary Grzemski | Agri-King | 4 |
| #5 | Mark W. Hughes | Maclean-Fogg | 4 |
| #5 | Darren Leigh Foster | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | 4 |
| #10 | Randy J. Tiesman | Champion International Corporation Limited | 2 |
| #10 | Randall Boonstra | — | 2 |
| #10 | Lee Alan Hawkins | Maclean-Fogg | 2 |
| #10 | Timothy Willging | IBM | 2 |
| #14 | James William Bos | — | 1 |
| #14 | Jack A. Huizenga | Commonwealth Edison | 1 |
| #14 | David L. Huizenga | — | 1 |
| #14 | Richard Cadogan | Commonwealth Edison | 1 |
| #14 | Theodore J. Marx | — | 1 |
| #14 | Terrence Edward Boonstra | — | 1 |
| #14 | Randy Boonstra | — | 1 |
Part of Illinois