Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6591875 | Cart for bulk filling intermodal containers | Richard David Zaun, Richard Wayne Hook, Gregory Knott, John Robinson, Christopher G. Kay +5 more | 2003-07-15 |
| 4531453 | Atmosphere control arrangement for an operator enclosure | Carl W. Dailey, Floyd D. Johnson | 1985-07-30 |
| 4233040 | Self-cleaning rotary filter for the cooling air inlet of an engine enclosure | Bernard F. Vogelaar, James R. Nelson | 1980-11-11 |