Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5327821 | Round baler twine wrapper control mechanism | John R. McClure | 1994-07-12 |
| 4462203 | Sprocket-shaped member for supporting apron tubes in roll baling machine | Stephen C. Schlotterbeck, Francis L. Uhland, Jr., Willis R. Campbell | 1984-07-31 |
| 4436027 | Stripper bar for roll baling machine | Willis R. Campbell | 1984-03-13 |
| 4425753 | Clutch mechanism for baling machine | — | 1984-01-17 |
| 4424662 | Drive apparatus for roll baling machine | Edward T. Eggers, Richard E. Jennings, Willis R. Campbell | 1984-01-10 |
| 4406221 | Bale retainer for roll baling machine | Charles A. Parrish, Willis R. Campbell, Anthony F. Diederich, Jr., James T. Clevenger, Jr. | 1983-09-27 |
| 4370848 | Baling machine with tapered bale chamber | Willis R. Campbell, Anthony F. Diederich, Jr., Richard E. Jennings | 1983-02-01 |
| 4206587 | Discharge means | James T. Clevenger, Jr., Willis R. Campbell, Anthony F. Diederich, Jr. | 1980-06-10 |