Issued Patents All Time
Showing 25 most recent of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6551501 | Combined process for improved hydrotreating of diesel fuels | Michael Brorson, Kim Grøn Knudsen, Per Zeuthen, Barry Cooper | 2003-04-22 |
| 5401393 | Reactive adsorbent and method for removing mercury from hydrocarbon fluids | Tsoung Y. Yan | 1995-03-28 |
| 4982049 | Purification of hydrocarbonaceous fractions | Richard A. Alexander, Charles Knight | 1991-01-01 |
| 4969522 | Polymer-coated support and its use as sand pack in enhanced oil recovery | Margaret M. Wu | 1990-11-13 |
| 4952747 | Removal of diamondoid compounds from hydrocarbonaceous fractions | Richard A. Alexander, Charles Knight | 1990-08-28 |
| 4952749 | Removal of diamondoid compounds from hydrocarbonaceous fractions | Richard A. Alexander, Charles Knight | 1990-08-28 |
| 4917788 | Manufacture of lube base stocks | Lillian A. Rankel | 1990-04-17 |
| 4908341 | Method for reactivating spent catalyst by contact with one or more aromatic compounds | Ann L. Pruden, Chaya R. Venkat | 1990-03-13 |
| 4892646 | Method for treating dewaxing catalysts | Chaya R. Venkat | 1990-01-09 |
| 4828678 | Catalytic cracking | Chaya R. Venkat | 1989-05-09 |
| 4659454 | Hydrocracking of heavy feeds plus light fractions with dispersed dual function catalyst | Philip Varghese | 1987-04-21 |
| 4533463 | Continuous coking of residual oil and production of gaseous fuel and smokeless solid fuels from coal | Tsoung Y. Yan | 1985-08-06 |
| 4487972 | Production of oxygenated compounds | Werner O. Haag | 1984-12-11 |
| 4482752 | Organic compound conversion | Thomas O. Mitchell | 1984-11-13 |
| 4470254 | Process and apparatus for coal combustion | Nai Y. Chen, Tsoung Y. Yan | 1984-09-11 |
| 4452688 | Integrated coal liquefication process | Thomas O. Mitchell | 1984-06-05 |
| 4447310 | Production of distillates by the integration of supercritical extraction and gasification through methanol to gasoline | Francis J. Derbyshire | 1984-05-08 |
| 4440622 | Integration of short-contact-time liquefaction and critical solvent deashing with gasification through methanol-to-gasoline | Francis J. Derbyshire, Philip Varghese | 1984-04-03 |
| 4428818 | Liquefaction of coal | Frank Derbyshire | 1984-01-31 |
| 4404177 | Method for producing graphite crystals | Francis J. Derbyshire | 1983-09-13 |
| 4400561 | Catalytic conversion | Thomas O. Mitchell | 1983-08-23 |
| 4395324 | Thermal cracking with hydrogen donor diluent | Francis J. Derbyshire, Philip Varghese | 1983-07-26 |
| 4393255 | Catalytic conversion | Thomas O. Mitchell | 1983-07-12 |
| 4385042 | Continuous reaction/separation method for nucleated growth reactions | Tsoung Y. Yan | 1983-05-24 |
| 4383094 | Continuous reaction/separation method for solution polymerization of olefins | Tsoung Y. Yan | 1983-05-10 |