Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215143 | Non-porous carbon molding (foundry) sand and method of casting | — | 1993-06-01 |
| 5094289 | Roasted carbon molding (foundry) sand and method of casting | — | 1992-03-10 |
| 4192615 | Sand mulling machine plow | Anthony C. Fortunski | 1980-03-11 |