Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | David Ihde | Hopkins Manufacturing | 20 |
| 2 | Benjamin K. Thompson | — | 3 |
| 2 | Glen N. Black | Hallmark Cards, Incorporated | 3 |
| #4 | Thomas L. Harold | Hallmark Cards, Incorporated | 2 |
| #5 | William R. Kline | Kansa | 1 |
Part of Kansas