Patents by Inventor Hiran Perinpanayagam

Hiran Perinpanayagam 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).

  • Biocompatible polymer nanoparticle coating composition and method of production thereof
    Patent number: 8987354
    Abstract: Biocompatible polymeric coating compositions having nanoscale surface roughness and methods of forming such coatings are described. A polymeric biocompatible coating may be produced using a powder coating method, where one or more thermosetting polymer resins and one or more biocompatible materials are mixed and extruded, ground into microscale particles, and mixed with nanoparticles to form a dry powder mixture that may be coated onto a substrate according to a powder coating method. Alternatively, the thermosetting polymeric resin can be first extruded and ground into microscale particles, and then mixed with the biocompatible materials in particular form of nanoscale to microscale in size, and then further mixed with nanoparticles to form a dry powder mixture for coating. Bioactive materials may also be selectively added into the polymeric coating in a similar way as the biocompatible materials, either before or after the extrusion, to form a bioactive polymeric coating.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: March 24, 2015
    Inventors: Jingxu Zhu, Hiran Perinpanayagam, Mohammad S. Mozumder, Hui Zhang, Wen Shi
  • BIOCOMPATIBLE POLYMER NANOPARTICLE COATING COMPOSITION AND METHOD OF PRODUCTION THEREOF
    Publication number: 20130059946
    Abstract: Biocompatible polymeric coating compositions having nanoscale surface roughness and methods of forming such coatings are described. A polymeric biocompatible coating may be produced using a powder coating method, where one or more thermosetting polymer resins and one or more biocompatible materials are mixed and extruded, ground into microscale particles, and mixed with nanoparticles to form a dry powder mixture that may be coated onto a substrate according to a powder coating method. Alternatively, the thermosetting polymeric resin can be first extruded and ground into microscale particles, and then mixed with the biocompatible materials in particular form of nanoscale to microscale in size, and then further mixed with nanoparticles to form a dry powder mixture for coating. Bioactive materials may also be selectively added into the polymeric coating in a similar way as the biocompatible materials, either before or after the extrusion, to form a bioactive polymeric coating.
    Type: Application
    Filed: April 25, 2012
    Publication date: March 7, 2013
    Inventors: Jingxu ZHU, Hiran PERINPANAYAGAM, Mohammad S. MOZUMDER, Hui ZHANG, Wen SHI
  • Calcium sulfate based nanoparticles
    Patent number: 7767226
    Abstract: The present invention provides a method for facilitating repair of an area of bone by providing hemihydrate calcium sulfate particles, mixing the particles with an aqueous solution to obtain a paste, applying the paste to an area of bone in need of repair, and allowing the paste to set.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: August 3, 2010
    Assignee: The Research Foundation of State University of New York
    Inventors: YoungBum Park, Rosemary Dziak, Robert J. Genco, Mark Swihart, Hiran Perinpanayagam
  • Calcium sulfate based nanoparticles
    Publication number: 20080213359
    Abstract: The present invention provides a method for facilitating repair of an area of bone by providing hemihydrate calcium sulfate particles, mixing the particles with an aqueous solution to obtain a paste, applying the paste to an area of bone in need of repair, and allowing the paste to set.
    Type: Application
    Filed: January 30, 2008
    Publication date: September 4, 2008
    Inventors: YoungBum Park, Rosemary Dziak, Robert J. Genco, Mark Swihart, Hiran Perinpanayagam