Showing 1–21 of 21 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Carl A. Caspers | Otto Bock Healthcare Lp | 20 |
| 2 | Mark T. Reum | Avon Plastics | 12 |
| 3 | Jacob Schlangen | — | 6 |
| #4 | Alex J. Maile | — | 4 |
| #4 | Donald D. Winkels | — | 4 |
| #6 | Russ D. Karasch | — | 3 |
| #6 | R. Douglas Fredrickson | — | 3 |
| #8 | Warren L. Hull | White Consolidated Industries | 2 |
| #8 | Brian WENNING | Rotochopper | 2 |
| #8 | Gregory A. Pederson | 911Ep | 2 |
| #8 | Raymond J. Moonen | — | 2 |
| #12 | Edwin J. Stich | — | 1 |
| #12 | Gene Kalthoff | — | 1 |
| #12 | Patrick J. Donaghue | — | 1 |
| #12 | Wallace Waletzko | — | 1 |
| #12 | Stanley Streit | — | 1 |
| #12 | Mary Streit | — | 1 |
| #12 | Glenn D. Manuel | — | 1 |
| #12 | Craig A. Dullinger | — | 1 |
| #12 | Daniel J. Steck | — | 1 |
| #12 | James Daniel Calgaro | Cold Spring Granite | 1 |
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