Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5007987 | Method for producing needle coke | Michael John Block, Milan Skripek | 1991-04-16 |
| 4545859 | Method for producing needle coke | Michael John Block, Milan Skripek | 1985-10-08 |
| 4530752 | Oil shale retorting process | Roland F. Deering, Hugh W. Gowdy | 1985-07-23 |
| 4521278 | Method for producing needle coke | Michael John Block, Milan Skripek | 1985-06-04 |