Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6258257 | Process for producing polypropylene from C3 olefins selectively produced by a two stage fluid catalytic cracking process | George A. Swan, III, Michael W. Bedell, Paul K. Ladwig, John E. Asplin, William A. Wachter +1 more | 2001-07-10 |
| 6123832 | Fluid catalytic cracking process for converting hydrocarbon mixtures | Teh C. Ho, Shun C. Fung, Robert C. Welch, Daniel P. Leta | 2000-09-26 |
| 6106697 | Two stage fluid catalytic cracking process for selectively producing b. C.su2 to C.sub.4 olefins | George A. Swan, III, Michael W. Bedell, Paul K. Ladwig, John E. Asplin, William A. Wachter +1 more | 2000-08-22 |
| 6093867 | Process for selectively producing C3 olefins in a fluid catalytic cracking process | Paul K. Ladwig, John E. Asplin, Tan-Jen Chen | 2000-07-25 |
| 6069287 | Process for selectively producing light olefins in a fluid catalytic cracking process | Paul K. Ladwig, John E. Asplin, William A. Wachter, Brian Erik Henry | 2000-05-30 |
| 5320746 | Process for recovering oil from tar sands | Robert C. Green, Russell John Koveal | 1994-06-14 |
| 5198099 | Three-stage process for producing ultra-clean distillate products | Kenneth L. Trachte, Willian Lasko, Edward Effron, Karl D. Chomyn | 1993-03-30 |
| 5158670 | Hydrocarbon catalytic cracking utilizing a precoked catalyst | Ian A. Cody, William G. McKnight | 1992-10-27 |
| 5074990 | Fluid catalytic cracking using catalysts containing an alumina-on-silica component | Claude C. Culross, William E. Winter | 1991-12-24 |
| 5070053 | FCC catalyst composition and method of making same | Claude C. Culross, William E. Winter | 1991-12-03 |
| 5026475 | Coal hydroconversion process comprising solvent extraction (OP-3472) | Claude C. Culross, Steve Reynolds | 1991-06-25 |
| 4537676 | Reducing metal content of oil feeds | Roby Bearden, Jr. | 1985-08-27 |
| 4504380 | Passivation of metal contaminants in cat cracking | Terry Reid | 1985-03-12 |
| 4504379 | Passivation of metal contaminants in cat cracking | Robert C. Schucker | 1985-03-12 |
| 4454024 | Hydroconversion process | Gopal H. Singhal | 1984-06-12 |
| 4451354 | Process for upgrading hydrocarbonaceous oils | — | 1984-05-29 |
| 4425225 | Reducing metal content of oil feeds | Roby Bearden, Jr. | 1984-01-10 |
| 4409093 | Process for reducing coke formation in heavy feed catalytic cracking | Roby Bearden, Jr. | 1983-10-11 |
| 4372840 | Process for reducing coke formation in heavy feed catalytic cracking | Roby Bearden, Jr. | 1983-02-08 |
| 4372841 | Process for reducing coke formation in heavy feed catalytic cracking | Roby Bearden, Jr. | 1983-02-08 |
| 4370220 | Process for reducing coke formation in heavy feed catalytic cracking | Roby Bearden, Jr. | 1983-01-25 |
| 4280895 | Passivation of cracking catalysts | Roby Bearden, Jr. | 1981-07-28 |
| 4280896 | Passivation of cracking catalysts | Roby Bearden, Jr. | 1981-07-28 |