Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747913 | Cooling apparatus for granular coke material | Ralph Gerstenkorn, Dale D. Erickson, Heyward G. Christmas, Ronald E. Kelley | 1988-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747913 | Cooling apparatus for granular coke material | Ralph Gerstenkorn, Dale D. Erickson, Heyward G. Christmas, Ronald E. Kelley | 1988-05-31 |