Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | James A. Perkins | Steelcase Development | 5 |
| 2 | Todd David Krupiczewicz | Steelcase | 4 |
| 3 | Russell T. Holdredge | Steelcase | 1 |
| 3 | Joseph H Beaumont | — | 1 |
| 3 | Ronald V. Andronaco | Ethylene | 1 |
| 3 | Dale Carley | Burke E. Porter Marchinery | 1 |
| 3 | Arnold A. Krumrie | Steelcase Development | 1 |
Part of Michigan