Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4388153 | Coke spillage removal device | Martin Dusel | 1983-06-14 |
| 4363411 | Hammerhead crane with plural shuttle trolleys, a load trolley and movable counterweight means | Roy A. Behling, Richard Collins | 1982-12-14 |
| 4351431 | Heavy duty belt conveyor | Edward A. Fenton, Jr., Ira W. Lakin | 1982-09-28 |
| 4270982 | Turret type, single spot coke oven door machine and guide | Ira W. Lakin | 1981-06-02 |