Top Inventors at Irwin Seating All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | John P. Conner | 12 |
| 2 | Robert L. Russell | 6 |
| 3 | Tim Coffield | 6 |
| #4 | Steven E. Finney | 5 |
| #5 | Richard A. Thalen | 4 |
| #6 | Larry R. Conner | 3 |
| #7 | Tyler N. Magnus | 3 |
| #8 | David W. Winship | 2 |
| #9 | Steve Finney | 2 |
| #10 | Dennis V. Rupar | 1 |
| #11 | Frederick Jacobs | 1 |
| #12 | Heather Walker | 1 |
| #13 | Ivan J. Furbish | 1 |
| #14 | James M. Brink | 1 |
| #15 | Joshua A. Bordewyk | 1 |
| #16 | Jonathan D. Emery | 1 |
| #17 | John M Lohman | 1 |
| #18 | Joe B. Sudkamp | 1 |
| #19 | Mark N. Middleton | 1 |
| #20 | Michiel P. van de Ven | 1 |
| #21 | Steven Douglass | 1 |
| #22 | Steven R. Madden | 1 |