Patent assignee · KR · COMPANY

SK INNOVATION CO., LTD.

730Patents
727Active
730Granted
63Portfolio score

Filing activity: Mar 30, 2006 → Aug 16, 2024 · 82 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US9624448B2 Method for preparing stabilized hydrocarbon oil blend Chemistry; Metallurgy 51 Active
US8598309B2 Catalytic system of nitrate anions for CO2/epoxide copolymerization Chemistry; Metallurgy 43 Active
US8163867B2 Process for producing polycarbonates and a coordination complex used therefor Chemistry; Metallurgy 39 Active
US8791274B2 Coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalyst Chemistry; Metallurgy 33 Active
US8507733B2 Coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalyst Chemistry; Metallurgy 33 Active
US8642721B2 Coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same catalyst Chemistry; Metallurgy 33 Active
US8253378B2 Battery management system with integration of voltage sensor and charge equalizer Emerging Cross-Sectional Technologies 30 Active
US8723480B2 Charge equalization apparatus for series-connected battery string using regulated voltage source Electricity 29 Active
US9127215B2 Method for reducing the amount of organic acids in a hydrocarbon oil fraction Emerging Cross-Sectional Technologies 25 Active
US8399375B2 Supported metallocene catalyst composition and a process for the preparation of polyolefin using the same Chemistry; Metallurgy 20 Active
US8354825B2 Two-stage charge equalization method and apparatus for series-connected battery string Electricity 16 Active
US8548761B2 Method for measuring SOC of a battery management system and the apparatus thereof Emerging Cross-Sectional Technologies 14 Active
US8926866B2 Hydrogen generating apparatus using steam reforming reaction Chemistry; Metallurgy 14 Active
US8334354B2 Ethylene copolymer with improved impact resistance Chemistry; Metallurgy 14 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
US8962900B2 Method for producing valuable aromatics and light paraffins from hydrocarbonaceous oils derived from oil, coal or wood Emerging Cross-Sectional Technologies 13 Active
US10333126B2 Fusion type composite separation membrane for lithium secondary battery, and preparation method therefor Emerging Cross-Sectional Technologies 12 Active
US9048669B2 Charge equalization apparatus and method for series-connected battery string Emerging Cross-Sectional Technologies 12 Active
US8779722B2 Two-stage charge equalization method and apparatus for series-connected battery string Emerging Cross-Sectional Technologies 12 Active
US8530616B2 Precise control of molecular weight and chain shape control in carbon dioxide/epoxide alternating copolymerization and preparation of low molecular weight poly(alkylene carbonate) thereby Chemistry; Metallurgy 10 Active
US8779784B2 Insulation resistance measuring circuit free from influence of battery voltage Physics 10 Active
US9676960B2 Composition for making hard coating layer Chemistry; Metallurgy 10 Active
US10815378B2 Polyamic acid resin and polyamideimide film Physics 10 Active
US8513479B2 Zinc ferrite catalysts, method of preparing thereof and method of preparing 1,3-butadiene using thereof Chemistry; Metallurgy 9 Active
US10985356B2 Composite separation membrane for lithium secondary battery and manufacturing method therefor Emerging Cross-Sectional Technologies 9 Active

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