Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4470460 | In situ retorting or oil shale | — | 1984-09-11 |
| 4471063 | Method and apparatus arrangement for regenerating fluid particles of catalyst | — | 1984-09-11 |
| 4469588 | Immobilization of vanadia deposited on sorbent materials during visbreaking treatment of carbo-metallic oils | Hubert Beck | 1984-09-04 |
| 4457833 | Process and catalyst for the conversion of carbo-metallic containing oils | Oliver J. Zandona, Stephen M. Kovach, Hubert Beck | 1984-07-03 |
| 4454025 | Passivating heavy metals in carbo-metallic oil conversion | — | 1984-06-12 |
| 4450241 | Endothermic removal of coke deposited on catalytic materials during carbo-metallic oil conversion | Stephen M. Kovach, James F. Hoffman | 1984-05-22 |
| 4440868 | Carbo-metallic oil conversion catalysts | Hubert Beck, Stephan M. Kovach | 1984-04-03 |
| 4432890 | Immobilization of vanadia deposited on catalytic materials during carbo-metallic oil conversion | H. Wayne Beck, James D. Carruthers, Edward B. Cornelius, Stephen M. Kovach, James L. Palmer +1 more | 1984-02-21 |
| 4432863 | Steam reforming of carbo-metallic oils | George D. Myers, Stephen M. Kovach, Oliver J. Zandona | 1984-02-21 |
| 4431749 | Large pore catalysts for heavy hydrocarbon conversion | James E. Lewis | 1984-02-14 |
| 4425259 | Endothermic removal of coke deposited on catalytic materials during carbo-metallic oil conversion | Stephen M. Kovach, James F. Hoffman | 1984-01-10 |
| 4424116 | Converting and stripping heavy hydrocarbons in two stages of riser conversion with regenerated catalyst | — | 1984-01-03 |
| 4414098 | Upgrading carbo-metallic oils with used catalyst | Oliver J. Zandona | 1983-11-08 |
| 4412914 | Endothermic removal of coke deposited on sorbent materials during carbo-metallic oil conversion | James F. Hoffman, Stephen M. Kovach | 1983-11-01 |
| 4407714 | Process for cracking high-boiling hydrocarbons using high pore volume, low density catalyst | George D. Myers, Stephen M. Kovach | 1983-10-04 |
| 4406773 | Magnetic separation of high activity catalyst from low activity catalyst | Roger M. Benslay | 1983-09-27 |
| 4377470 | Immobilization of vanadia deposited on catalytic materials during carbo-metallic oil conversion | James D. Carruthers, William Watkins | 1983-03-22 |
| 4374019 | Process for cracking high-boiling hydrocarbons using high ratio of catalyst residence time to vapor residence time | Stephen M. Kovach | 1983-02-15 |
| 4371519 | Methods of treating cellular tissue | — | 1983-02-01 |