Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Jonathan Piles | Certainteed | 4 |
| 1 | Ludwig Reisinger | Certainteed | 4 |
| 3 | Flavio Da Silva | American Maplan | 2 |
| 3 | Steven E. Spence | American Maplan | 2 |
| 3 | Robert F. Shamet | American Maplan | 2 |
| 3 | Leonard F. Eck | Hein-Werner | 2 |
| #7 | Larry E. Potter | — | 1 |
| #7 | Harvey R. Toews | — | 1 |
| #7 | Richard Potter | — | 1 |
| #7 | Leonard L. Miller | — | 1 |
| #7 | W. Keith Swinehart | — | 1 |
| #7 | Horst Eigruber | American Maplan | 1 |
Part of Kansas