Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612067 | Manganese steel | Hugo R. Larson | 1986-09-16 |
| 4425169 | Austenitic-manganese steel | Henry J. Chapin, Bruce A. Heyer | 1984-01-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612067 | Manganese steel | Hugo R. Larson | 1986-09-16 |
| 4425169 | Austenitic-manganese steel | Henry J. Chapin, Bruce A. Heyer | 1984-01-10 |