Patents by Inventor John Wayne Dean

John Wayne Dean 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).

  • Absorbent compositions for the removal of acid gases from gas streams
    Patent number: 6337059
    Abstract: An absorbent composition for the removal of acid gases, such as CO2, H2S and COS, from gas streams is provided. The absorbent composition comprises an aqueous solution comprising: 1) greater than 1 mole piperazine per liter of aqueous solution; and 2) about 1.5 to about 6 moles methyldiethanolamine per liter of aqueous solution.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: January 8, 2002
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Craig Norman Schubert, Paulino Forte, John Wayne Dean