Patents by Inventor Sabaratnasingham GNANARAJAN

Sabaratnasingham GNANARAJAN 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).

  • Thermochemical synthesis of metallic pigments
    Patent number: 11578410
    Abstract: A method for depositing a metal-based coating on a particulate substrate, including: i) preparing a mixture comprising the particulate substrate, a powder comprising a coating metal oxide of one or more of Ti, Al, Zn, Sn, In, Sb, Ag, Co, V, Ni, Cr, Mn, Fe, Cu, Pt, Pd, Ta, Zr, Nb, Rh, Ru, Mo, Os, Re and W, a reducing agent powder of Al metal or Al alloy, and a powder of aluminium chloride; and ii) mixing and heating the mixture to form a coating on the particulate substrate, to produce a coated substrate product.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 14, 2023
    Assignee: D-BLOCK COATING PTY LTD.
    Inventors: Jawad Haidar, Sabaratnasingham Gnanarajan
  • THERMOCHEMICAL SYNTHESIS OF METALLIC PIGMENTS
    Publication number: 20210355585
    Abstract: The present invention relates to a method and an apparatus for coating large area solid substrates such as flakes, powder, beads, and fibres with metal-based coatings by heating the substrate with a powder mixture including reducible metal oxides and a reducing agent. The method is particularly suited for production of substrates coated with metals, alloys and compounds based on Ti, Al, Zn, Sn, In, Sb, Ag, Co, V, Ni, Cr, Mn, Fe, Cu, Pt, Pd, Ta, Zr, Nb, Rh, Ru, Mo, Os, Re and W.
    Type: Application
    Filed: November 16, 2018
    Publication date: November 18, 2021
    Applicant: D-BLOCK COATING PTY LTD
    Inventors: Jawad HAIDAR, Sabaratnasingham GNANARAJAN