Patents Examined by Allison G Fitzsimmons
  • Method and filter for removing nitrate ions
    Patent number: 9902626
    Abstract: A method for removing nitrate ions from a solution is presented. The method includes providing a polymer comprising a protonated amine moiety and an anion derived from an acid having a pKa value greater than about 1. The method further includes contacting the polymer with the solution to bind at least a portion of the nitrate ions in the solution with the polymer, and form a polymer-nitrate complex. The method furthermore includes separating at least a portion of the polymer-nitrate complex from the solution.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: February 27, 2018
    Assignee: General Electric Company
    Inventors: Hongchen Dong, Larry Neil Lewis, Stephen Robert Vasconcellos
  • System and method for using carbon dioxide sequestered from seawater in the remineralization of process water
    Patent number: 8685250
    Abstract: Disclosed is an improved method for remineralizing desalinated water. The desalination system includes, but is not limited to, a conventional reverse osmosis membrane system, forward osmosis membrane system, electro dialysis system, Multi Stage Flash (MSF) system, and Multi Effect Distillation (MED) system.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: April 1, 2014
    Assignee: Doosan Heavy Industries & Construction Co., Ltd.
    Inventors: Young Chul Choi, Chunwoo Lee, Pranay Mane