Patents by Inventor Asurasinghe R. Kumarasinghe

Asurasinghe R. Kumarasinghe 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).

  • PROCESS FOR PREPARATION OF CARBON NANOTUBES FROM VEIN GRAPHITE
    Publication number: 20130062195
    Abstract: A catalyst free process for manufacturing carbon nanotubes by inducing an arc discharge from a vein graphite anode and a vein graphite cathode in an inert gas atmosphere contained in a closed vessel. The process is carried out at atmospheric pressure in the absence of external cooling mechanism for the carbon cathode or the carbon anode.
    Type: Application
    Filed: August 21, 2012
    Publication date: March 14, 2013
    Applicant: Sri Lanka Institute of Nanotechnology (PVT) Ltd.
    Inventors: Lilantha Samaranayake, Nilwala Kottegoda, Asurasinghe R. Kumarasinghe, Ajith De Alwis, Sunanda Gunasekara, Sameera Nanayakkara, Veranja Karunaratne
  • PROCESS FOR PREPARATION OF CARBON NANOTUBES FROM VEIN GRAPHITE
    Publication number: 20110262341
    Abstract: A catalyst free process for manufacturing carbon nanotubes by inducing an arc discharge from a carbon anode and a carbon cathode in an inert gas atmosphere contained in a closed vessel. The process is carried out at atmospheric pressure in the absence of external cooling mechanism for the carbon cathode or the carbon anode.
    Type: Application
    Filed: April 25, 2010
    Publication date: October 27, 2011
    Applicant: Sri Lanka Institute of Nanotechnology (Pvt) Ltd.
    Inventors: Lilantha Samaranayake, Nilwala Kottegoda, Asurasinghe R. Kumarasinghe, Ajith De Alwis, Sunanda Gunasekara, Sameera Nanayakkara, Veranja Karunaratne