Patents by Inventor David F. Wassell

David F. Wassell 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).

  • Separation of gases
    Patent number: 8734744
    Abstract: Aspects of the disclosure relate to the separation of gases and to a process for the removal of carbon dioxide gas using liquid absorbents. A process is disclosed for removing carbon dioxide from a gaseous stream comprising contacting the gaseous stream with a carbon dioxide absorbent comprising a mixture of an ionic liquid and water in a molar ratio of from 10:1 to 1:10, wherein the ionic liquid has the formula: [Cat+][X?].
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 27, 2014
    Assignee: Petroliam Nasional Berhad
    Inventors: David F. Wassell, Kenneth R. Seddon, Martin P. Atkins
  • SEPARATION OF GASES
    Publication number: 20130071309
    Abstract: Aspects of the disclosure relate to the separation of gases and to a process for the removal of carbon dioxide gas using liquid absorbents.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: PETROLIAM NASIONAL BERHAD
    Inventors: David F. Wassell, Kenneth R. Seddon, Martin P. Atkins