Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6143137 | Cooling pocket for a rotary drum cooler having a flexible vent pipe assembly | Robert William Biederstadt, Jack Richard Highlander, Jr., John W. Daly | 2000-11-07 |
| 6132560 | Rotary drum cooler having adjustable lifters | — | 2000-10-17 |
| 5622604 | Coke cooling apparatus | Leslie J. Okonek | 1997-04-22 |
| 5016686 | Method and apparatus for loading particulate materials | — | 1991-05-21 |
| 4747913 | Cooling apparatus for granular coke material | Dale D. Erickson, Heyward G. Christmas, Ronald E. Kelley, Charles A. Taul | 1988-05-31 |