Patents by Inventor D. A. Saminda DHARMARATHNA

D. A. Saminda DHARMARATHNA 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).

  • Method for removing soot from exhaust gases
    Patent number: 9869222
    Abstract: A method for oxidizing soot from diesel exhaust gas from a diesel engine. The method involves providing a diesel particulate filter for receiving the diesel exhaust gas; coating a catalyst composition on the diesel particulate filter; and contacting the soot from the diesel exhaust gas with the catalyst coated diesel particulate filter at a temperature sufficient to oxidize the soot to carbon dioxide. The catalyst composition is a doped or undoped manganese oxide octahedral molecular sieve (OMS-2) material. A diesel exhaust gas treatment system that includes a diesel particulate filter for receiving diesel exhaust gas from a diesel engine and collecting soot; and a catalyst composition coated on the diesel particulate filter. The catalyst composition is a doped or undoped manganese oxide octahedral molecular sieve (OMS-2).
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 16, 2018
    Assignee: University of Connecticut
    Inventors: Steven L. Suib, D. A. Saminda Dharmarathna, Lakshitha R. Pahalagedara
  • METHOD FOR REMOVING SOOT FROM EXHAUST GASES
    Publication number: 20160177794
    Abstract: A method for oxidizing soot from diesel exhaust gas from a diesel engine. The method involves providing a diesel particulate filter for receiving the diesel exhaust gas; coating a catalyst composition on the diesel particulate filter; and contacting the soot from the diesel exhaust gas with the catalyst coated diesel particulate filter at a temperature sufficient to oxidize the soot to carbon dioxide. The catalyst composition is a doped or undoped manganese oxide octahedral molecular sieve (OMS-2) material. A diesel exhaust gas treatment system that includes a diesel particulate filter for receiving diesel exhaust gas from a diesel engine and collecting soot; and a catalyst composition coated on the diesel particulate filter. The catalyst composition is a doped or undoped manganese oxide octahedral molecular sieve (OMS-2).
    Type: Application
    Filed: December 16, 2015
    Publication date: June 23, 2016
    Inventors: Steven L. SUIB, D. A. Saminda DHARMARATHNA, Lakshitha R. PAHALAGEDARA