Inventor · Ulsan, KR

Sun Choi

31Patents
8h-index
94Co-inventors
74Inventor score

Filing activity: Mar 16, 1999 → Jan 30, 2014

Most-cited inventions

PatentTitleAreaCited byStatus
US6635792B2 Process for producing aromatic hydrocarbon compounds and liquefied petroleum gas from hydrocarbon feedstock Performing Operations; Transporting 44 Expired
US6162644A Method for controlling and optimizing xylene isomer separation and isomerization process using near infrared analyzer system and apparatus for carrying out same Emerging Cross-Sectional Technologies 34 Expired
US7301063B2 Process for increasing production of light olefin hydrocarbon from hydrocarbon feedstock Emerging Cross-Sectional Technologies 22 Expired
US7297831B2 Process of preparing aromatic hydrocarbons and liquefied petroleum gas from hydrocarbon mixture Chemistry; Metallurgy 17 Active
US8962900B2 Method for producing valuable aromatics and light paraffins from hydrocarbonaceous oils derived from oil, coal or wood Emerging Cross-Sectional Technologies 13 Active
US8975462B2 Method for producing high-added-value aromatic products and olefinic products from an aromatic-compound-containing oil fraction Emerging Cross-Sectional Technologies 13 Active
US7939702B2 Process for increasing production of light olefins from hydrocarbon feedstock in catalytic cracking Emerging Cross-Sectional Technologies 11 Active
US7304195B2 Process for increasing production of benzene from hydrocarbon mixture Chemistry; Metallurgy 9 Expired
US8962901B2 Method of producing valuable aromatics and olefins from hydrocarbonaceous oils derived from coal or wood Chemistry; Metallurgy 7 Active
US8293961B2 Catalytic cracking process using fast fluidization for the production of light olefins from hydrocarbon feedstock Emerging Cross-Sectional Technologies 6 Active
US8911613B2 Method of simultaneously manufacturing high quality naphthenic base oil and heavy base oil Chemistry; Metallurgy 5 Active
US9283553B2 Hydrocracking catalyst for preparing valuable light aromatic hydrocarbons from polycyclic aromatic hydrocarbons Emerging Cross-Sectional Technologies 5 Active
US8933283B2 Process for the preparation of clean fuel and aromatics from hydrocarbon mixtures catalytic cracked on fluid bed Chemistry; Metallurgy 5 Active
US6852361B2 Method of on-line coating of a film on the inner walls of the reaction tubes in a hydrocarbon pyrolysis reactor Performing Operations; Transporting 4 Expired
US8980082B2 Method of simultaneously removing sulfur and mercury from hydrocarbon material using catalyst by means of hydrotreating reaction Chemistry; Metallurgy 3 Active
US6514563B1 Method of on-line coating film on the inner walls of the reaction tubes in a hydrocarbon pyrolysis reactor Performing Operations; Transporting 3 Expired
US7601663B2 Solid acid catalyst for producing light olefins and process using the same Emerging Cross-Sectional Technologies 3 Active
US7488700B2 Hydrothermally stable microporous molecular sieve catalyst and preparation method thereof Emerging Cross-Sectional Technologies 3 Active
US7718840B2 Process for production of light olefins from hydrocarbon feedstock Chemistry; Metallurgy 3 Active
US7663013B2 Solid acid catalyst for producing light olefins and process using the same Emerging Cross-Sectional Technologies 2 Active
US9056308B2 Catalyst for catalytic cracking of hydrocarbon, which is used in production of light olefin and production method thereof Emerging Cross-Sectional Technologies 2 Active
US8936715B2 Method of manufacturing high quality lube base oil using unconverted oil Chemistry; Metallurgy 2 Active
US8834706B2 Method for preparing lubricating base oils by using vacuum distilled deasphalted oil Chemistry; Metallurgy 1 Active
US8546514B2 Continuous process for manufacturing aliphatic polycarbonates from carbon dioxide and epoxides Chemistry; Metallurgy 1 Active
US6870073B2 Process for separating normal paraffins from hydrocarbons and applications for the separated hydrocarbons Chemistry; Metallurgy 1 Expired

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