Inventor · Baton Rouge, LA, US

Stephen C. Leviness

24Patents
13h-index
34Co-inventors
81Inventor score

Filing activity: Dec 18, 1992 → Nov 17, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US7314503B2 Process to remove nitrogen and/or carbon dioxide from methane-containing streams Emerging Cross-Sectional Technologies 75 Expired
US8293805B2 Tracking feedstock production with micro scale gas-to-liquid units Emerging Cross-Sectional Technologies 60 Active
US9359271B2 Fischer-Tropsch process Performing Operations; Transporting 41 Active
US5817702A Hydrocarbon synthesis catalyst slurry rejuvenation with gas disengagement Performing Operations; Transporting 40 Expired
US5811363A Catalyst rejuvenation in hydrocarbon synthesis slurry with reduced slurry recontamination Chemistry; Metallurgy 39 Expired
US5811469A Slurry hydrocarbon synthesis with downcomer fed product filtration (LAW552) Chemistry; Metallurgy 34 Expired
US9006298B2 Fischer-Tropsch process Performing Operations; Transporting 31 Active
US5844005A Hydrocarbon synthesis using reactor tail gas for catalyst rejuvenation Performing Operations; Transporting 31 Expired
US5288673A Temperature control in draft tubes for catalyst rejuvenation Emerging Cross-Sectional Technologies 22 Expired
US5973012A Hydrocarbon synthesis catalyst slurry rejuvenation with gas disengagement (LAW 783) Emerging Cross-Sectional Technologies 22 Expired
US5817701A Slurry hydrocarbon synthesis with cyclic CO purge and catalyst rejuvenation Emerging Cross-Sectional Technologies 21 Expired
US6107353A Cyanide and ammonia removal from synthesis gas Chemistry; Metallurgy 15 Expired
US7361619B2 Fischer-Tropsch catalyst production Performing Operations; Transporting 14 Expired
US6284807A Slurry hydrocarbon synthesis process with increased catalyst life Chemistry; Metallurgy 12 Expired
US5962537A Multizone downcomer for slurry hydrocarbon syntheses process Chemistry; Metallurgy 12 Expired
US6066679A Slurry hydrocarbon synthesis with cyclic co purge and catalyst rejuvenation Emerging Cross-Sectional Technologies 10 Expired
US7419928B2 Fischer-Tropsch catalyst production Performing Operations; Transporting 6 Expired
US8614158B2 Fischer-trospch and oxygenate synthesis catalyst activation/regeneration in a micro scale process Chemistry; Metallurgy 3 Active
US7939953B2 Micro scale fischer-tropsch and oxygenate synthesis process startup unit Electricity 3 Active
US8591861B2 Hydrogenating pre-reformer in synthesis gas production processes Chemistry; Metallurgy 2 Active
US9365765B2 Generation of hydrocarbon fuels having a reduced environmental impact Chemistry; Metallurgy 2 Active
US9994763B2 Generation of hydrocarbon fuels having a reduced environmental impact Chemistry; Metallurgy 1 Active
US11247953B2 Process of removing heat Emerging Cross-Sectional Technologies 1 Active
US6270734A Multizone downcomer for slurry hydrocarbon synthesis process Chemistry; Metallurgy 1 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.