Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8066619 | Clutch control system | Robert E. Herchick, David C. Heidenrcich, Erik Leonard Olson, David A. Peterman, Arthur F. Gouker +1 more | 2011-11-29 |
| 6305515 | Hydraulically actuated power takeoff clutch assembly | David C. Heidenreich, Robert E. Herchick | 2001-10-23 |