Patents by Inventor Allen Tanner

Allen Tanner 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).

  • Process for recovering organic hydroxides from waste solutions
    Patent number: 6217743
    Abstract: In one embodiment, the present invention relates to a process for recovering an onium compound from waste solutions or synthetic solutions containing the onium compound and impurities including the steps: contacting the waste solution or synthetic solution with a metal ion scavenger to remove metal ion impurities, wherein the metal ion scavenger comprises at least one of a chelating compound, a nanoporous material, and a magnetically assisted (MACS) material; charging the waste solution or synthetic solution to an electrochemical cell containing at least two compartments, a cathode, an anode and a divider and passing a current through the cell whereby the onium compound is regenerated or produced; and recovering the onium compound from the cell.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: April 17, 2001
    Assignee: Sachem, Inc.
    Inventors: Roger D. Moulton, Weilian Lang, Allen Tanner