Patents by Inventor Stephanie Freeman

Stephanie Freeman 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).

  • Acidic gas removal by aqueous amine solvents
    Patent number: 8816078
    Abstract: Compositions and methods related to the removal of acidic gas. In one embodiment, compositions and methods are provided for the removal of acidic gas from a gas mixture using an aqueous amine solvent comprising water, a first amine, and a second amine, wherein the first amine contributes at least 50% by weight of the solvent's total amine concentration.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: August 26, 2014
    Assignee: Board of Regents, The University of Texas System
    Inventors: Gary Rochelle, Stephanie Freeman, Xi Chen, Thu Nguyen, Alexander Voice, Humera Rafique
  • ACIDIC GAS REMOVAL BY AQUEOUS AMINE SOLVENTS
    Publication number: 20110171093
    Abstract: Compositions and methods related to the removal of acidic gas. In one embodiment, compositions and methods are provided for the removal of acidic gas from a gas mixture using an aqueous amine solvent comprising water, a first amine, and a second amine, wherein the first amine contributes at least 50% by weight of the solvent's total amine concentration.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 14, 2011
    Inventors: Gary Rochelle, Stephanie Freeman, Xi Chen, Thu Nguyen, Alexander Voice, Humera Rafique