Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9624589 | System and process for electrochemical conversion of carbon dioxide to carbon monoxide | John L. DiMeglio, Jonnathan Medina-Ramos | 2017-04-18 |
| 9410093 | Heavy oil hydrocracking process | Dennis R. Cash, Graham J. Forder, David S. Mitchell | 2016-08-09 |
| 9039890 | Two-stage, close-coupled, dual-catalytic heavy oil hydroconversion process | Dennis R. Cash, Graham J. Forder, David S. Mitchell | 2015-05-26 |
| 4422922 | Coal liquefaction and hydroprocessing of petroleum oils | Arthur J. Dahlberg | 1983-12-27 |
| 4391699 | Coal liquefaction process | — | 1983-07-05 |
| 4389301 | Two-step hydroprocessing of heavy hydrocarbonaceous oils | Arthur J. Dahlberg, John H. Shinn, Tim Chu | 1983-06-21 |
| 4385983 | Process for retorting oil shale mixtures with added carbonaceous material | P. Henrik Wallman | 1983-05-31 |
| 4379744 | Coal liquefaction process | Arthur J. Dahlberg | 1983-04-12 |
| 4376037 | Hydroprocessing of heavy hydrocarbonaceous oils | Arthur J. Dahlberg, John H. Shinn, Tim Chu | 1983-03-08 |
| 4358359 | Two-stage coal liquefaction process with process-derived solvent having a low heptane-insolubles content | Arthur J. Dahlberg, Christopher W. Kuehler | 1982-11-09 |
| 4354920 | Coal liquefaction process | Arthur J. Dahlberg | 1982-10-19 |
| 4350582 | Two-stage coal liquefaction process with process-derived solvent | Arthur J. Dahlberg, Christopher W. Kuehler | 1982-09-21 |
| 4330389 | Coal liquefaction process | Arthur J. Dahlberg | 1982-05-18 |
| 4330390 | Two-stage coal liquefaction process with petroleum-derived coal solvents | Arthur J. Dahlberg | 1982-05-18 |
| 4330391 | Coal liquefaction process | Arthur J. Dahlberg | 1982-05-18 |
| 4330393 | Two-stage coal liquefaction process with petroleum-derived coal solvents | Arthur J. Dahlberg | 1982-05-18 |
| 4325800 | Two-stage coal liquefaction process with interstage guard bed | Christopher W. Kuehler | 1982-04-20 |
| 4283268 | Two-stage coal liquefaction process with interstage guard bed | Christopher W. Kuehler | 1981-08-11 |
| 4264429 | Two-stage coal liquefaction process with process-derived solvent | Arthur J. Dahlberg, Christopher W. Kuehler | 1981-04-28 |
| 4255248 | Two-stage coal liquefaction process with process-derived solvent having a low heptane-insolubiles content | Arthur J. Dahlberg, Christopher W. Kuehler | 1981-03-10 |