Top Inventors at Gemcor Engineering All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Bradley M. Roberts | 11 |
| 2 | David Michalewski | 8 |
| 3 | Jeffrey P. Weaver | 8 |
| #4 | Mark Andrews | 8 |
| #5 | John W. Davern | 7 |
| #6 | Thomas H. Speller, Sr. | 7 |
| #7 | Robert J. Kellner | 6 |
| #8 | Joseph A. Dionne | 5 |
| #9 | Ernest K. Krell | 4 |
| #10 | John W. Zienkiewicz | 4 |
| #11 | James J. Birke | 3 |
| #12 | James L. Birke | 3 |
| #13 | Mark Cassidy | 3 |
| #14 | Mark J. Catania | 3 |
| #15 | Thomas H. Rummell | 3 |
| #16 | Daniel D. Cook | 2 |
| #17 | Kurt R. Kubanek | 2 |
| #18 | Mark A. Siuta | 2 |
| #19 | Steven Gross | 2 |
| #20 | William W. Mangus | 2 |
| #21 | Frank T. Mazurik | 1 |
| #22 | Gary Riehle | 1 |
| #23 | Jeffery P. Weaver | 1 |
| #24 | Larry J. Reilly | 1 |
| #25 | Martin L. Gutowski | 1 |
| #26 | Robert T. Flaig | 1 |
| #27 | Thomas E. Burns | 1 |
| #28 | William Orrell | 1 |