Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Floyd E. Mount | Iowa Rotocast Plastics | 22 |
| 2 | Robert A. Collins | Simon Container Machinery Limited | 5 |
| 3 | Roger D. Vickery | — | 2 |
| #4 | James P. Rixen | — | 1 |
| #4 | David Kloostra | — | 1 |
| #4 | Debra Gourley | — | 1 |
| #4 | Dennis Gourley | — | 1 |
| #4 | Brad Winters | — | 1 |
| #4 | Philip F. Weighner | — | 1 |
| #4 | Travis Johanningmeier | — | 1 |
Part of Iowa