Patents by Inventor Maria C. Vlachou

Maria C. Vlachou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • TWC catalysts for gasoline engine exhaust gas treatments
    Patent number: 11788450
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component supported on a first PGM support material, wherein the first PGM component comprises rhodium (Rh) and platinum (Pt); and wherein Pt and Rh has a weight ratio of at least 1:10.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: October 17, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Paul Millington, Maria C. Vlachou
  • TWC CATALYSTS FOR GASOLINE ENGINE EXHAUST GAS TREATMENTS
    Publication number: 20230070493
    Abstract: A catalyst composition comprising a first platinum group metal (PGM) component and a first support material, wherein the first PGM component comprises platinum (Pt) and palladium (Pd) and is supported on the first support material; and wherein the first PGM component has a Pt:Pd molar ratio of from about 5:95 to about 95:5.
    Type: Application
    Filed: August 17, 2022
    Publication date: March 9, 2023
    Inventors: Paul MILLINGTON, Nicoleta MURESAN, Andrea Eva PASCUI, Maria C. VLACHOU
  • TWC CATALYSTS FOR GASOLINE ENGINE EXHAUST GAS TREATMENTS
    Publication number: 20220136417
    Abstract: A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component supported on a first PGM support material, wherein the first PGM component comprises rhodium (Rh) and platinum (Pt); and wherein Pt and Rh has a weight ratio of at least 1:10.
    Type: Application
    Filed: October 19, 2021
    Publication date: May 5, 2022
    Inventors: Paul Millington, Maria C. Vlachou