Patents by Inventor Harish Barshilia Chandra

Harish Barshilia Chandra 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).

  • Hybrid multilayer solar selective coating for high temperature solar thermal applications and a process for the preparation thereof
    Patent number: 9726402
    Abstract: The present invention describes a hybrid multilayer solar selective coating having high thermal stability useful for high temperature solar thermal power generation. The hybrid multilayer solar selective coating of the present invention has been deposited using a novel combination of sputtering and sol-gel methods on metallic and non-metallic substrates, preferably on SS 304 and 321 with chrome interlayer. The hybrid multilayer solar selective coating of the present invention consists of stacks of Ti/chrome interlayer, aluminum titanium nitride (AlTiN), aluminum titanium oxynitride (AlTiON), aluminum titanium oxide (AlTiO) and organically modified silica (ormosil) layers. The chrome interlayer was deposited using an electroplating method, whereas, Ti, AlTiN, AlTiON and AlTiO layers were prepared using a four-cathode reactive unbalanced pulsed direct current magnetron sputtering technique.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: August 8, 2017
    Assignee: Council of Scientific & Industrial Research
    Inventors: Harish Barshilia Chandra, Jyothi Bharathibai Basu, Lakshmi Ramachandrappa Vara
  • A Hybrid Multilayer Solar Selective Coating for High Temperature Solar Thermal Applications and a Process for the Preparation Thereof
    Publication number: 20160010896
    Abstract: The present invention describes a hybrid multilayer solar selective coating having high thermal stability useful for high temperature solar thermal power generation. The hybrid multilayer solar selective coating of the present invention has been deposited using a novel combination of sputtering and sol-gel methods on metallic and non-metallic substrates, preferably on SS 304 and 321 with chrome interlayer. The hybrid multilayer solar selective coating of the present invention consists of stacks of Ti/chrome interlayer, aluminum titanium nitride (AlTiN), aluminum titanium oxynitride (AlTiON), aluminum titanium oxide (AlTiO) and organically modified silica (ormosil) layers. The chrome interlayer was deposited using an electroplating method, whereas, Ti, AlTiN, AlTiON and AlTiO layers were prepared using a four-cathode reactive unbalanced pulsed direct current magnetron sputtering technique.
    Type: Application
    Filed: September 11, 2013
    Publication date: January 14, 2016
    Applicant: Council of Scientific & Industrial Research
    Inventors: Harish Barshilia Chandra, Jyothi Bharathibai Basu, Lakshmi Ramachandrappa Vara