Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874419 | Substrate for growing shiitake mushrooms | — | 1989-10-17 |
| 4534781 | Mushroom supplement containing protein and a time delay coating | Carl W. Bretzloff, deceased | 1985-08-13 |