Patent assignee · DE · COMPANY

UMICORE AG & CO. KG

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422Patents
367Active
422Granted
58Portfolio score

Filing activity: Apr 20, 2001 → Sep 1, 2023 · 106 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US6861387B2 Noble metal-containing supported catalyst and a process for its preparation Emerging Cross-Sectional Technologies 50 Expired
US7875250B2 Exhaust treatment device, and methods of making the same Emerging Cross-Sectional Technologies 47 Active
US6843971B2 Process and catalyst for reducing nitrogen oxides Emerging Cross-Sectional Technologies 47 Expired
US8640440B2 Removal of particulates from the exhaust gas of internal combustion engines operated with a predominantly stoichiometric air/fuel mixture Emerging Cross-Sectional Technologies 40 Active
US7671224B2 Use of a phosphorus containing ligand and a cyclic organic ligand in a transition metal compound Chemistry; Metallurgy 39 Active
US8066963B2 Removal of particulates from the exhaust gas of internal combustion engines operated with a predominantly stoichiometric air/fuel mixture Emerging Cross-Sectional Technologies 39 Active
US6725647B2 Exhaust gas treatment units for internal combustion engines and processes for operating them Emerging Cross-Sectional Technologies 34 Expired
US8663588B2 Three way catalyst Emerging Cross-Sectional Technologies 33 Active
US9517462B2 Two-layer-three-way catalyst Emerging Cross-Sectional Technologies 33 Active
US9353139B2 Metal complexes with N-Aminoamidinate ligands Performing Operations; Transporting 30 Active
US6858193B2 Catalyst for lowering the amount of nitrogen oxides in the exhaust gas from lean burn engines Emerging Cross-Sectional Technologies 29 Expired
US7109145B2 Noble metal-containing supported catalyst and a process for its preparation Emerging Cross-Sectional Technologies 25 Expired
US6938411B2 Method for removing nitrogen oxides and particulates from the lean exhaust gas of an internal combustion engine and exhaust gas emission system Emerging Cross-Sectional Technologies 25 Expired
US8557204B2 Three-way catalyst having an upstream single-layer catalyst Emerging Cross-Sectional Technologies 25 Active
US8323599B2 Three-way catalyst having an upstream multi-layer catalyst Emerging Cross-Sectional Technologies 25 Active
US7943104B2 CE-ZR based solid solutions and methods for making and using the same Emerging Cross-Sectional Technologies 24 Active
US8394348B1 Three-way catalyst having a upstream multi-layer catalyst Emerging Cross-Sectional Technologies 24 Active
US7563744B2 Catalyst featuring silicone dioxide based support material for the purification of exhaust gases Performing Operations; Transporting 23 Expired
US6875725B2 Exhaust-gas purification catalyst to be used close to the engine and process for its production Emerging Cross-Sectional Technologies 22 Expired
US7005116B2 Process for reducing nitrogen oxides Emerging Cross-Sectional Technologies 21 Expired
US7150866B2 Catalyst for autothermal reforming of hydrocarbons with increased water gas shift activity Emerging Cross-Sectional Technologies 21 Expired
US7799298B2 Catalyst arrangement and method of purifying the exhaust gas of internal combustion engines operated under lean conditions Emerging Cross-Sectional Technologies 20 Active
US7313911B2 Method of removing nitrogen oxides from the exhaust gas of a lean-burn internal combustion engine and exhaust-gas purification system therefor Emerging Cross-Sectional Technologies 20 Expired
US8968690B2 Three-way catalyst having an upstream single-layer catalyst Emerging Cross-Sectional Technologies 20 Active
US7431895B2 Exhaust gas treatment unit for the selective catalytic reduction of nitrogen oxides under lean exhaust gas conditions and a process for the treatment of exhaust gases Emerging Cross-Sectional Technologies 19 Expired

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