Patents by Inventor Ramkumar N. Parthasarathy

Ramkumar N. Parthasarathy 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).

  • Publication number: 20250074790
    Abstract: A method for desalinating a brine includes the use of a cooled intermediate-cold-liquid (ICL), which combines with the brine in a crystallization or freezing tank, where the brine and cooled ICL are contacted for a time sufficient to produce a slurry of ice, brine, and ICL. The method includes steps for separating the ICL, ice and brine, and melting the separated ice to form a volume of desalinated water. The method is significant in that it produces desalinated liquid water and solid salts. The combination of superior heat transfer with high quality purified water and competitive desalination economy makes the disclosed freeze desalination technology an attractive solution for desalination of highly concentrated brines produced in a variety of industries, including but not limited to the oil and gas industry and reject brine management.
    Type: Application
    Filed: November 14, 2024
    Publication date: March 6, 2025
    Applicant: The Board of Regents of the University of Oklahoma
    Inventors: Hamidreza Shabgard, Ramkumar N. Parthasarathy, Jie Cai
  • Patent number: 12187625
    Abstract: A method for desalinating a brine includes the use of a cooled intermediate-cold-liquid (ICL), which combines with the brine in a crystallization or freezing tank to produce a slurry of ice, brine, and ICL. The method includes steps for separating the ICL, ice and brine, and returning the separated ICL to the source of cooled ICL tank. The method concludes with the steps of passing the separated brine to the crystallization tank, and melting the separated ice to form desalinated water. The method is significant in that it produces desalinated liquid water and solid salts. The combination of superior heat transfer with high quality purified water and competitive desalination economy makes the disclosed freeze desalination technology an attractive solution for desalination of highly concentrated brines produced in a variety of industries, including but not limited to the oil and gas industry and reject brine management.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: January 7, 2025
    Assignee: The Board of Regents of the University of Oklahoma
    Inventors: Hamidreza Shabgard, Ramkumar N. Parthasarathy, Jie Cai
  • Publication number: 20210139346
    Abstract: A method for desalinating a brine includes the use of a cooled intermediate-cold-liquid (ICL), which combines with the brine in a crystallization or freezing tank to produce a slurry of ice, brine, and ICL. The method includes steps for separating the ICL, ice and brine, and returning the separated ICL to the source of cooled ICL tank. The method concludes with the steps of passing the separated brine to the crystallization tank, and melting the separated ice to form desalinated water. The method is significant in that it produces desalinated liquid water and solid salts. The combination of superior heat transfer with high quality purified water and competitive desalination economy makes the disclosed freeze desalination technology an attractive solution for desalination of highly concentrated brines produced in a variety of industries, including but not limited to the oil and gas industry and reject brine management.
    Type: Application
    Filed: November 11, 2020
    Publication date: May 13, 2021
    Applicant: The Board of Regents of the University of Oklahoma
    Inventors: Hamidreza Shabgard, Ramkumar N. Parthasarathy, Jie Cai