Patent assignee · US · COMPANY

Lyondell Chemical Technology, L.P.

201Patents
160Active
201Granted
56Portfolio score

Filing activity: Mar 10, 2003 → Sep 23, 2022 · 89 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8507720B2 Titania-alumina supported palladium catalyst Chemistry; Metallurgy 292 Active
US7314545B2 Desulfurization process Chemistry; Metallurgy 38 Expired
US7144499B2 Desulfurization process Chemistry; Metallurgy 28 Expired
US7070648B1 Preparation of gypsum compositions Chemistry; Metallurgy 21 Expired
US7175918B2 Polyolefin compositions Emerging Cross-Sectional Technologies 18 Expired
US9464240B2 Aromatics production process Chemistry; Metallurgy 18 Active
US7261772B1 Gypsum composition Chemistry; Metallurgy 16 Active
US7687647B2 Propylene oxide process Chemistry; Metallurgy 15 Active
US7393424B2 Gypsum composition Chemistry; Metallurgy 14 Active
US7279606B1 Hydroformylation process Performing Operations; Transporting 13 Active
US8519182B2 Acetic acid production process Emerging Cross-Sectional Technologies 12 Active
US7208625B1 Removing permanganate-reducing impurities from acetic acid Chemistry; Metallurgy 10 Active
US7271295B1 Hydroformylation process Chemistry; Metallurgy 10 Active
US7279145B2 Multiphase reactor design incorporating filtration system for fixed--bed catalyst Emerging Cross-Sectional Technologies 10 Expired
US7012167B2 Diisobutylene process Chemistry; Metallurgy 10 Expired
US7387981B1 Direct epoxidation catalyst and process Performing Operations; Transporting 9 Active
US7256149B2 Catalyst regeneration process Emerging Cross-Sectional Technologies 9 Expired
US6972337B1 Epoxidation catalyst Performing Operations; Transporting 9 Expired
US7238817B1 Direct epoxidation process Chemistry; Metallurgy 9 Expired
US7812191B2 Removing hydrocarbon impurities from acetic acid by ionic liquid extraction Chemistry; Metallurgy 9 Active
US7138535B1 Direct epoxidation process Chemistry; Metallurgy 8 Expired
US7524988B2 Preparation of acetic acid Chemistry; Metallurgy 7 Active
US7345197B1 Preparation of acetic acid Chemistry; Metallurgy 7 Active
US7790919B2 Removing hydrocarbon impurities from acetic acid production process Chemistry; Metallurgy 6 Active
US6969780B1 Production of butanediol Chemistry; Metallurgy 6 Expired

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