Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D951064 | Spacer | Thomas J. Frelich, Molly J. Mann | 2022-05-10 |
| 4424757 | Fertilizing method and applicator for concurrently introducing anhydrous ammonia and a phosphoric acid into a furrow | — | 1984-01-10 |