Showing 1–15 of 15 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ronald H. Langlie | North Central Plastics | 16 |
| 2 | Jon A. Berg | North Central Plastics | 13 |
| 3 | Wayne Lee Jensen | Streater | 5 |
| #4 | Daniel A. Bruzek | Spx | 4 |
| #5 | Gary Lurken | — | 3 |
| #5 | David L. Paine | — | 3 |
| #5 | Jared A. Smith | Trystar | 3 |
| #8 | Albert T. Berg, Jr. | — | 2 |
| #8 | Larry Lageson | Bosch Automotive Service Solutions | 2 |
| #8 | Raymond Wheeler | — | 2 |
| #8 | Howard Langlie | — | 2 |
| #12 | Lynne M Krell | — | 1 |
| #12 | Sandra K. Vangen | — | 1 |
| #12 | Jacquie D. Deml | Hormel Foods | 1 |
| #12 | Timothy Wilson | Waters Instruments | 1 |
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