Patents by Inventor Chandrasiri Jayakody

Chandrasiri Jayakody 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).

  • Patent number: 10537656
    Abstract: An absorbent wound dressing comprises a hydrophilic porous substrate and polymer-stabilized silver nanoparticles distributed throughout the porous substrate. The silver nanoparticles have a particle size d50 in the range of about 45 nm to about 85 nm and the silver nanoparticles are present in the substrate in an amount of about 0.16% to about 1.5% by weight of the total weight of the substrate. The wound dressing produces a 7-day log reduction of 4 or more for bacteria in accordance with the Modified AATCC Test Method 100. The wound dressing is also non-cytotoxic in accordance with ISO 10993-5 standard procedure for medical device cytotoxicity assessment.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 21, 2020
    Assignee: POREX TECHNOLOGIES CORPORATION
    Inventors: Chandrasiri Jayakody, Anthony J. Joles, Ramesh Srinivasan, Geoffrey M. Stoltz
  • Patent number: 10377871
    Abstract: A flame retardant composition for producing a resulting polyurethane foam, a flame retardant process for producing a resulting polyurethane foam, and a resulting polyurethane foam produced by a flame retardant process are described. The resulting polyurethane foam meets the Federal Railroad Administration, National Fire Protection Association, and Federal Transit Administration fire performance testing criteria for cushioning applications in railway, bus, and van industries.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: August 13, 2019
    Inventors: Chandrasiri Jayakody, Carl Melvin Ogburn, Mark Allen Brown
  • Publication number: 20180311400
    Abstract: An absorbent wound dressing comprises a hydrophilic porous substrate and polymer-stabilized silver nanoparticles distributed throughout the porous substrate. The silver nanoparticles have a particle size d50 in the range of about 45 nm to about 85 nm and the silver nanoparticles are present in the substrate in an amount of about 0.16% to about 1.5% by weight of the total weight of the substrate. The wound dressing produces a 7-day log reduction of 4 or more for bacteria in accordance with the Modified AATCC Test Method 100. The wound dressing is also non-cytotoxic in accordance with ISO 10993-5 standard procedure for medical device cytotoxicity assessment.
    Type: Application
    Filed: December 5, 2017
    Publication date: November 1, 2018
    Inventors: Chandrasiri Jayakody, Anthony J. Joles, Ramesh Srinivasan, Geoffrey M. Stoltz
  • Patent number: 9839715
    Abstract: An absorbent wound dressing comprises a hydrophilic porous substrate and polymer-stabilized silver nanoparticles distributed throughout the porous substrate. The silver nanoparticles have a particle size d50 in the range of about 45 nm to about 85 nm and the silver nanoparticles are present in the substrate in an amount of about 0.16% to about 1.5% by weight of the total weight of the substrate. The wound dressing produces a 7-day log reduction of 4 or more for bacteria in accordance with the Modified AATCC Test Method 100. The wound dressing is also non-cytotoxic in accordance with ISO 10993-5 standard procedure for medical device cytotoxicity assessment.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: December 12, 2017
    Assignee: Porex Technologies Corporation
    Inventors: Chandrasiri Jayakody, Anthony J. Joles, Ramesh Srinivasan, Geoffrey M. Stoltz
  • Publication number: 20160045635
    Abstract: An absorbent wound dressing comprises a hydrophilic porous substrate and polymer-stabilized silver nanoparticles distributed throughout the porous substrate. The silver nanoparticles have a particle size d50 in the range of about 45 nm to about 85 nm and the silver nanoparticles are present in the substrate in an amount of about 0.16% to about 1.5% by weight of the total weight of the substrate. The wound dressing produces a 7-day log reduction of 4 or more for bacteria in accordance with the Modified AATCC Test Method 100. The wound dressing is also non-cytotoxic in accordance with ISO 10993-5 standard procedure for medical device cytotoxicity assessment.
    Type: Application
    Filed: August 13, 2015
    Publication date: February 18, 2016
    Inventors: Chandrasiri Jayakody, Anthony J. Joles, Ramesh Srinivasan, Geoffrey M. Stoltz
  • Publication number: 20110070423
    Abstract: A foam-fiber composite material is provided that is made up of a monolithic foam structure having a polymer material and a fiber web having a plurality of fibers disposed substantially throughout the foam structure.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 24, 2011
    Inventors: Chandrasiri Jayakody, Alison J. Kimmitz, Geoffrey M. Stoltz, Chad M. Bannan
  • Patent number: 7393879
    Abstract: A method for producing a novel silicone foam by reaction of a polyisocyanate with a silicone oligomer having a plurality of functional end groups with active hydrogens, optionally in the presence of fire-retardants, under foam forming conditions which creates a new silicone foam for use in items such as residential upholstered furniture industry, seat cushions and bedding etc., and specifically for use in applications that require, high resilience and fire-retardant properties such as aircraft and surface transportation seat cushioning, military and shipboard mattresses etc.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: July 1, 2008
    Assignee: Chestnut Ridge Foam, Inc.
    Inventors: Jiri E. Kresta, David Munoz Rojas, Ramon Moliner, Chandrasiri Jayakody, Dan Myers