Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4624776 | Selective removal of coke precursors from hydrocarbon feedstock | Jack Griffel | 1986-11-25 | $18,650,000 |
| 4493765 | Selective separation of heavy oil using a mixture of polar and nonpolar solvents | Fred A. Caruso | 1985-01-15 | $29,256,000 |
| 4424114 | Separating basic asphaltenes using transition metal oxide acid catalysts | Lawrence L. Murrell, Dane C. Grenoble | 1984-01-03 | $21,942,000 |
| 4419219 | Adsorption of basic asphaltenes on solid acid catalysts | Fred A. Caruso | 1983-12-06 | $21,149,000 |
| 4406780 | Separation and oxygen-alkylation of phenols from phenol-containing hydrocarbonaceous streams | Kenneth Arthur Gould | 1983-09-27 | $22,144,000 |
| 4253937 | Coal liquefaction process | — | 1981-03-03 | $22,367,000 |
| 4252633 | Coal liquefaction process | Martin L. Gorbaty, Richard H. Schlosberg | 1981-02-24 | $28,919,000 |
| 4250014 | Coal liquefaction process | Martin L. Gorbaty, Lonnie W. Vernon | 1981-02-10 | $20,583,000 |