Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4762608 | Upgrading of pyrolysis tar | Rostislav Didchenko | 1988-08-09 |
| 4740291 | Upgrading of pyrolysis tar using acidic catalysts | Rostislav Didchenko | 1988-04-26 |
| 4740293 | Premium coke from a blend of pyrolysis tar and hydrotreated decant oil | Arthur Moore | 1988-04-26 |
| 4624775 | Process for the production of premium coke from pyrolysis tar | — | 1986-11-25 |