Patents by Inventor Ashveer Raghunandan

Ashveer Raghunandan 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 producing metal-doped zeolites and use thereof for the catalytic conversion of nitrogen oxides
    Patent number: 9018120
    Abstract: The present invention provides a process for the preparation of metal-doped zeolites comprising the steps of i) provision of a dry mixture of a) a zeolite, b) a compound of a catalytically active metal, ii) intimate grinding of the mixture, iii) heating of the mixture in a reactor, iv) cooling to room temperature and obtaining the metal-doped zeolite, wherein the internal pressure in the reactor during the heating is kept in a pressure range from 0 to ?200 millibar. The invention further relates to the use of a metal-doped zeolite prepared by means of the process according to the invention for the conversion of NOx and N2O into harmless products.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: April 28, 2015
    Assignee: Süd-Chemie IP GmbH & Co KG
    Inventors: Soovi Hurgobin, Arno Tissler, Ashveer Raghunandan, Attila Jambor, Rainer Rakoczy, Roderik Althoff
  • Method for producing metal-doped zeolites and use thereof for the catalytic conversion of nitrogen oxides
    Publication number: 20100075834
    Abstract: The present invention provides a process for the preparation of metal-doped zeolites comprising the steps of i) provision of a dry mixture of a) a zeolite, b) a compound of a catalytically active metal, ii) intimate grinding of the mixture, iii) heating of the mixture in a reactor, iv) cooling to room temperature and obtaining the metal-doped zeolite, wherein the internal pressure in the reactor during the heating is kept in a pressure range from 0 to ?200 millibar. The invention further relates to the use of a metal-doped zeolite prepared by means of the process according to the invention for the conversion of NOx and N2O into harmless products.
    Type: Application
    Filed: July 19, 2007
    Publication date: March 25, 2010
    Inventors: Soovi Hurgobin, Arno Tissler, Ashveer Raghunandan, Attila Jambor, Rainer Rakoczy, Roderik Althoff