Patents by Inventor Ejiogu C. Ndubizu

Ejiogu C. Ndubizu 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).

  • Recovery of [CO]from seawater/aqueous bicarbonate systems using a multi-layer gas permeable membrane
    Patent number: 8313557
    Abstract: The present invention is generally directed to a system for recovering CO2 from seawater or aqueous bicarbonate solutions using a gas permeable membrane with multiple layers. At elevated pressures, gaseous CO2 and bound CO2 in the ionic form of bicarbonate and carbonate diffuse from the seawater or bicarbonate solution through the multiple layers of the membrane. Also disclosed is the related method of recovering CO2 from seawater or aqueous bicarbonate solutions.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: November 20, 2012
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Heather D. Willauer, Dennis R Hardy, M. Kathleen Lewis, Ejiogu C. Ndubizu, Frederick Williams
  • RECOVERY OF [CO2]T FROM SEAWATER/AQUEOUS BICARBONATE SYSTEMS USING A MULTI-LAYER GAS PERMEABLE MEMBRANE
    Publication number: 20100028242
    Abstract: The present invention is generally directed to a system for recovering CO2 from seawater or aqueous bicarbonate solutions using a gas permeable membrane with multiple layers. At elevated pressures, gaseous CO2 and bound CO2 in the ionic form of bicarbonate and carbonate diffuse from the seawater or bicarbonate solution through the multiple layers of the membrane. Also disclosed is the related method of recovering CO2 from seawater or aqueous bicarbonate solutions.
    Type: Application
    Filed: June 25, 2009
    Publication date: February 4, 2010
    Inventors: Heather D. Willauer, Dennis R. Hardy, M. Kathleen Lewis, Ejiogu C. Ndubizu, Frederick Williams