Robert B. Long
10Patents
5h-index
10Co-inventors
59Inventor score
Filing activity: Mar 12, 1975 → Sep 6, 1985
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4493765A | Selective separation of heavy oil using a mixture of polar and nonpolar solvents | Chemistry; Metallurgy | 39 | Expired |
| US4250014A | Coal liquefaction process | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4624776A | Selective removal of coke precursors from hydrocarbon feedstock | Chemistry; Metallurgy | 11 | Expired |
| US4252633A | Coal liquefaction process | Chemistry; Metallurgy | 6 | Expired |
| US4141960A | Complex bimetallic salts | Chemistry; Metallurgy | 5 | Expired |
| US4419219A | Adsorption of basic asphaltenes on solid acid catalysts | Chemistry; Metallurgy | 4 | Expired |
| US4066679A | Bimetallic salts and derivatives thereof, their preparation and use in the complexing of ligands | Chemistry; Metallurgy | 3 | Expired |
| US4424114A | Separating basic asphaltenes using transition metal oxide acid catalysts | Chemistry; Metallurgy | 2 | Expired |
| US4253937A | Coal liquefaction process | Chemistry; Metallurgy | 2 | Expired |
| US4406780A | Separation and oxygen-alkylation of phenols from phenol-containing hydrocarbonaceous streams | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.