Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7576025 | Composition for reducing Ox emissions in FCC regeneration process | Paul O'Connor, Dennis Stamires | 2009-08-18 |
| 4564439 | Two-stage, close-coupled thermal catalytic hydroconversion process | Arthur J. Dahlberg | 1986-01-14 |
| 4559132 | Upflow packed bed catalytic reactor with periodic bed expansion | — | 1985-12-17 |
| 4510038 | Coal liquefaction using vacuum distillation and an external residuum feed | — | 1985-04-09 |
| 4428820 | Coal liquefaction process with controlled recycle of ethyl acetate-insolubles | Samil Beret | 1984-01-31 |
| 4381987 | Hydroprocessing carbonaceous feedstocks containing asphaltenes | — | 1983-05-03 |
| 4358359 | Two-stage coal liquefaction process with process-derived solvent having a low heptane-insolubles content | Joel W. Rosenthal, Arthur J. Dahlberg | 1982-11-09 |
| 4350582 | Two-stage coal liquefaction process with process-derived solvent | Joel W. Rosenthal, Arthur J. Dahlberg | 1982-09-21 |
| 4331531 | Three-stage coal liquefaction process | — | 1982-05-25 |
| 4325800 | Two-stage coal liquefaction process with interstage guard bed | Joel W. Rosenthal | 1982-04-20 |
| 4325801 | Three-stage coal liquefaction process | — | 1982-04-20 |
| 4300996 | Three-stage coal liquefaction process | — | 1981-11-17 |
| 4283268 | Two-stage coal liquefaction process with interstage guard bed | Joel W. Rosenthal | 1981-08-11 |
| 4264429 | Two-stage coal liquefaction process with process-derived solvent | Joel W. Rosenthal, Arthur J. Dahlberg | 1981-04-28 |
| 4264430 | Three-stage coal liquefaction process | — | 1981-04-28 |
| 4255248 | Two-stage coal liquefaction process with process-derived solvent having a low heptane-insolubiles content | Joel W. Rosenthal, Arthur J. Dahlberg | 1981-03-10 |