Hartley Owen
267Patents
37h-index
54Co-inventors
93Inventor score
Filing activity: Jul 18, 1973 → Mar 3, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4456779A | Catalytic conversion of olefins to higher hydrocarbons | Chemistry; Metallurgy | 114 | Expired |
| US4830728A | Upgrading naphtha in a multiple riser fluid catalytic cracking operation employing a catalyst mixture | Performing Operations; Transporting | 112 | Expired |
| US4090949A | Upgrading of olefinic gasoline with hydrogen contributors | Chemistry; Metallurgy | 110 | Expired |
| US5271905A | Apparatus for multi-stage fast fluidized bed regeneration of catalyst | Chemistry; Metallurgy | 82 | Expired |
| US5077252A | Process for control of multistage catalyst regeneration with partial CO combustion | Chemistry; Metallurgy | 78 | Expired |
| US4788369A | Conversion of methanol to gasoline | Emerging Cross-Sectional Technologies | 75 | Expired |
| US4935568A | Multistage process for oxygenate conversion to hydrocarbons | Emerging Cross-Sectional Technologies | 73 | Expired |
| US3974062A | Conversion of full range crude oils with low molecular weight carbon-hydrogen fragment contributors over zeolite catalysts | Performing Operations; Transporting | 70 | Expired |
| US4035285A | Hydrocarbon conversion process | Chemistry; Metallurgy | 70 | Expired |
| US4720600A | Production of middle distillate range hydrocarbons by light olefin upgrading | Mechanical Engineering; Lighting; Heating | 65 | Expired |
| US5154818A | Multiple zone catalytic cracking of hydrocarbons | Chemistry; Metallurgy | 64 | Expired |
| US4456781A | Catalytic conversion system for oligomerizing olefinic feedstock to produce heavier hydrocarbons | Chemistry; Metallurgy | 61 | Expired |
| US4219407A | Fluid cracking process and the method for separating a suspension discharged from a riser cracking zone | Performing Operations; Transporting | 56 | Expired |
| US4855524A | Process for combining the operation of oligomerization reactors containing a zeolite oligomerization catalyst | Chemistry; Metallurgy | 55 | Expired |
| US5372704A | Cracking with spent catalyst | Chemistry; Metallurgy | 52 | Expired |
| US5011592A | Process for control of multistage catalyst regeneration with full then partial CO combustion | Chemistry; Metallurgy | 52 | Expired |
| US4831203A | Integrated production of gasoline from light olefins in a fluid cracking process plant | Chemistry; Metallurgy | 51 | Expired |
| US5248408A | Catalytic cracking process and apparatus with refluxed spent catalyst stripper | Chemistry; Metallurgy | 50 | Expired |
| US4917790A | Heavy oil catalytic cracking process and apparatus | Chemistry; Metallurgy | 50 | Expired |
| US4046825A | Conversion of oxygenated compounds to gasoline | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4851602A | Alkanes and alkenes conversion to high octane gasoline | Chemistry; Metallurgy | 50 | Expired |
| US5034565A | Production of gasoline from light olefins in a fluidized catalyst reactor system | Chemistry; Metallurgy | 49 | Expired |
| US4875994A | Process and apparatus for catalytic cracking of residual oils | Chemistry; Metallurgy | 47 | Expired |
| US4820404A | Cooling of stripped catalyst prior to regeneration in cracking process | Chemistry; Metallurgy | 47 | Expired |
| US4511747A | Light olefin conversion to heavier hydrocarbons with sorption recovery of unreacted olefin vapor | Chemistry; Metallurgy | 46 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.