Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286371 | Process for producing needle coke | Shri K. Goval, Jeffrey John Kolstad, F. William Hauschildt, Cheryl L. M. Joval | 1994-02-15 |
| 5110449 | Oxygen addition to a coking zone and sludge addition with oxygen addition | Shri K. Goyal | 1992-05-05 |
| 5041207 | Oxygen addition to a coking zone and sludge addition with oxygen addition | Joseph A. Harrington, Ciro D. Sorrentino, Shri K. Goyal, Irwin Ginsburgh | 1991-08-20 |
| 4585063 | Oil shale retorting and retort water purification process | Colin G. Grieves | 1986-04-29 |
| 4495056 | Oil shale retorting and retort water purification process | Colin G. Grieves | 1985-01-22 |