Roger A. Morrison
31Patents
17h-index
23Co-inventors
81Inventor score
Filing activity: Aug 26, 1974 → May 31, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4753720A | Process for improving the octane number of cracked gasolines | Chemistry; Metallurgy | 48 | Expired |
| US5409595A | Heavy naphtha conversion | Chemistry; Metallurgy | 40 | Expired |
| US4224141A | Manufacture of aromatic compounds | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4163028A | Xylene isomerization | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4188282A | Manufacture of benzene, toluene and xylene | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4083889A | Process for manufacturing ethylene | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4052476A | Toluene disproportionation over zeolite catalyst | Performing Operations; Transporting | 29 | Expired |
| US5865986A | Hydrocarbon conversion | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4078990A | Manufacture of lower aromatic compounds | Chemistry; Metallurgy | 28 | Expired |
| US4211886A | Manufacture of benzene, toluene and xylene | Emerging Cross-Sectional Technologies | 27 | Expired |
| US3945913A | Manufacture of lower aromatic compounds | Chemistry; Metallurgy | 26 | Expired |
| US4341622A | Manufacture of benzene, toluene and xylene | Chemistry; Metallurgy | 26 | Expired |
| US4236996A | Xylene isomerization | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4812223A | Hydrocracking naphthas using mildly steamed, noble metal-containing zeolite beta | Performing Operations; Transporting | 22 | Expired |
| US4083888A | Process for manufacturing ethylene | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5396010A | Heavy naphtha upgrading | Chemistry; Metallurgy | 21 | Expired |
| US3953366A | Catalyst for the production of aromatic compounds | Chemistry; Metallurgy | 20 | Expired |
| US4218573A | Xylene isomerization | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7402993B2 | Electrical profile monitoring system for detection of atypical consumption | Physics | 16 | Active |
| US4686316A | Production of butanes from propane | Chemistry; Metallurgy | 15 | Expired |
| US4992611A | Direct conversion of C.sub.1 -C.sub.4 oxygenates to low aromatic distillate range hydrocarbons | Chemistry; Metallurgy | 13 | Expired |
| US4899008A | Direct catalytic alkylation of mononuclear aromatics with lower alkanes | Chemistry; Metallurgy | 13 | Expired |
| US5993643A | Process for naphtha hydrocracking | Chemistry; Metallurgy | 13 | Expired |
| US5284643A | Gallium-containing zeolite MCM-22 | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4152363A | Vapor phase isomerization of methyl-substituted aromatic hydrocarbons improved by using highly diluted zeolite catalyst | Emerging Cross-Sectional Technologies | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.