Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612067 | Manganese steel | Dilip K. Subramanyam | 1986-09-16 |
| 4536232 | Erosion and corrosion resistant cast iron alloy containing chromium, nickel and molybdenum | Igor Y. Khandros | 1985-08-20 |
| 4352416 | Cast iron railroad brake shoes | Chandi P. Biswas | 1982-10-05 |
| 4342593 | Castings | Howard S. Avery, Henry J. Chapin | 1982-08-03 |