Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4443969 | Mushroom casing composition and process | William A. Hanacek, James E. Kahl | 1984-04-24 |
| 4388035 | Dibble tube soil plug planter | David W. Cayton, Errol C. Armstrong | 1983-06-14 |
| 4337594 | Mushroom casing composition and process | William A. Hanacek, James E. Kahl | 1982-07-06 |
| 4294179 | Dibble tube soil plug planter | David W. Cayton, Errol C. Armstrong | 1981-10-13 |