Showing 1–21 of 21 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Mark Stahl | Pfizer | 21 |
| 2 | Howard Lawrence | Perkins Engines Company Limited | 10 |
| 3 | Francis N. Fatool | Jdc | 4 |
| #4 | William Clifford Houser | — | 3 |
| #4 | Wade Fatool | — | 3 |
| #6 | Terry Schindler | — | 2 |
| #6 | Ray Seybert | Playworld Systems | 2 |
| #6 | Joseph DeVenuto | Unknown | 2 |
| #6 | Larry W. Ditty | — | 2 |
| #6 | John Stahl | — | 2 |
| #11 | James L. Gordon | Jdc | 1 |
| #11 | Eric Nicholas Attinger | — | 1 |
| #11 | Gregory W. Miles | — | 1 |
| #11 | Ross Garside | — | 1 |
| #11 | David Patrick Dailey | Jeld-Wen | 1 |
| #11 | Jeffrey Swank | — | 1 |
| #11 | John R. Weiser | — | 1 |
| #11 | Gretchen G. Walberg | — | 1 |
| #11 | Dale R. Hane | — | 1 |
| #11 | Wayne L. Bassett | — | 1 |
| #11 | Darwin R. Bassett | — | 1 |
Part of Pennsylvania