Patents by Inventor James R. Ebbins

James R. Ebbins 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).

  • Treatment for reducing impurities in aqueous liquor
    Patent number: 5116507
    Abstract: The invention relates to a method of treating an aqueous liquor, such as effluent liquor formed during coal gasification. The method comprises subjecting the liquor to dephenolation and ammonia stripping treatment to remove phenolic compounds and "free" ammonia from the liquor and then subjecting the resulting liquor, which still contains ammonium compounds and thus "fixed" ammonia, to reverse osmosis treatment to produce a permeate which is substantially free from impurities, including "fixed" ammonia.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: May 26, 1992
    Assignee: British Gas plc
    Inventors: James R. Ebbins, Simon F. Lopez, Christopher Taylor