Top Inventors at Indian Head Industries All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Ronald S. Plantan | 23 |
| 2 | Graydon J. Choinski | 12 |
| 3 | Richard J. Rink | 7 |
| #4 | David W. Brooks | 6 |
| #5 | Mark David Chandler | 6 |
| #6 | Allen L. Gummer | 6 |
| #7 | Thomas Edward Wallace | 5 |
| #8 | Alan C. Lesesky | 5 |
| #9 | Christopher Prager | 4 |
| #10 | Duane M. Juriga | 4 |
| #11 | Henry Dangson | 4 |
| #12 | Steve Lepard | 4 |
| #13 | Glenn Singletary | 3 |
| #14 | Gregory A. Greenly | 3 |
| #15 | Michael M. Holm | 3 |
| #16 | Paul S. Osterman | 3 |
| #17 | Richard F. Zarybnicky, Sr. | 3 |
| #18 | Thomas O. Schultz | 3 |
| #19 | Walter E. Heron | 3 |
| #20 | Bob Weant | 2 |
| #21 | Duane J. Demus | 2 |
| #22 | Gary Sprague | 2 |
| #23 | Hans Borneby | 2 |
| #24 | Melvin L. Surbrook | 2 |
| #25 | Thomas D. Gacioch | 2 |
| #26 | Wayne Oster | 2 |
| #27 | Andrew Schartner | 2 |
| #28 | Casey Zella | 1 |
| #29 | Emmett S. Davis | 1 |
| #30 | Greg W. Jensen | 1 |
| #31 | Jeff Douglas Switzer | 1 |
| #32 | Michael Kerr | 1 |
| #33 | Mohammad Abdallah | 1 |
| #34 | R. Ryan Moore | 1 |
| #35 | Randy Stephens | 1 |
| #36 | Robin Jenkins | 1 |
| #37 | Terry L. Stonehocker | 1 |
| #38 | Wally V. Stegall | 1 |
| #39 | James D. Goates | 1 |
| #40 | Duane L. Angeli | 1 |