Patents by Inventor Kalyan K. Das

Kalyan K. Das 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).

  • Low hysteresis carbon black
    Patent number: 10072154
    Abstract: A carbon black product comprises aggregates of carbon black characterized as having an OAN of between 139 and 149 ml/100 g, a COAN of between 95 and 105 ml/100 g, an iodine adsorption number I2 No of between 52 and 62 mg/g, and a multipoint nitrogen adsorption N2SA of between 54 and 64 m2/g. Tires manufactured with the carbon black product exhibit low rolling resistance and low heat build-up under service conditions.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: September 11, 2018
    Assignee: Sid Richardson Carbon, Ltd.
    Inventors: Wesley Wampler, Leszek Nikiel, Kalyan K. Das
  • LOW HYSTERESIS CARBON BLACK
    Publication number: 20160251518
    Abstract: A carbon black product comprises aggregates of carbon black characterized as having an OAN of between 139 and 149 ml/100 g, a COAN of between 95 and 105 ml/100 g, an iodine adsorption number I2 No of between 52 and 62 mg/g, and a multipoint nitrogen adsorption N2SA of between 54 and 64 m2/g. Tires manufactured with the carbon black product exhibit low rolling resistance and low heat build-up under service conditions.
    Type: Application
    Filed: February 23, 2016
    Publication date: September 1, 2016
    Inventors: Wesley Wampler, Leszek Nikiel, Kalyan K. Das