Patent assignee · US · COMPANY

Lummus Technology LLC

287Patents
285Active
287Granted
61Portfolio score

Filing activity: Oct 9, 2001 → Mar 4, 2024 · 63 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8153851B2 Integrated propylene production Emerging Cross-Sectional Technologies 68 Active
US8034164B2 Methods and apparatus for improved control of PSA flow variations Performing Operations; Transporting 64 Active
US8258358B2 Integrated propylene production Emerging Cross-Sectional Technologies 47 Active
US8440874B2 Olefin isomerization and metathesis catalyst Emerging Cross-Sectional Technologies 38 Active
US7663011B2 Mesoporous material with active metals Chemistry; Metallurgy 36 Active
US8647415B1 Coke catcher Chemistry; Metallurgy 30 Active
US8586813B2 Catalyst for metathesis of ethylene and 2-butene and/or double bond isomerization Emerging Cross-Sectional Technologies 28 Active
US7856847B2 Multiple reflux stream hydrocarbon recovery process Mechanical Engineering; Lighting; Heating 25 Active
US7793517B2 Multiple reflux stream hydrocarbon recovery process Mechanical Engineering; Lighting; Heating 24 Active
US8519210B2 Process for producing ethylene via oxidative dehydrogenation (ODH) of ethane Emerging Cross-Sectional Technologies 20 Active
US7550405B2 Zeolite composite, method for making and catalytic application thereof Chemistry; Metallurgy 20 Active
US9452955B2 Process for producing distillate fuels and anode grade coke from vacuum resid Chemistry; Metallurgy 19 Active
US7604681B2 Three-stage membrane gas separation process Emerging Cross-Sectional Technologies 18 Active
US9650312B2 Integration of residue hydrocracking and hydrotreating Chemistry; Metallurgy 17 Active
US8753428B2 Method and manifold for carrying reduced moment due to dimensional change in pressure vessel; removable insert with valve seat; pressure assisted valve arrangement and method Emerging Cross-Sectional Technologies 17 Active
US8105971B2 Process for making catalysts useful for the conversion of paraffins to olefins Emerging Cross-Sectional Technologies 16 Active
US10793490B2 Oxidative coupling of methane methods and systems Emerging Cross-Sectional Technologies 15 Active
US10787400B2 Efficient oxidative coupling of methane processes and systems Chemistry; Metallurgy 14 Active
US10787398B2 Integrated processes and systems for conversion of methane to multiple higher hydrocarbon products Emerging Cross-Sectional Technologies 14 Active
US8287720B2 Multistage resid hydrocracking Chemistry; Metallurgy 13 Active
US7484385B2 Multiple reflux stream hydrocarbon recovery process Mechanical Engineering; Lighting; Heating 11 Expired
US8105972B2 Catalysts for the conversion of paraffins to olefins and use thereof Emerging Cross-Sectional Technologies 10 Active
US9452404B2 Fluid cracking process and apparatus for maximizing light olefins or middle distillates and light olefins Chemistry; Metallurgy 8 Active
US7842847B2 Separation process for olefin production Chemistry; Metallurgy 7 Active
US7524467B2 Process for the production of alkylbenzene Emerging Cross-Sectional Technologies 7 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.