Patents by Inventor Randall P. Duggan

Randall P. Duggan 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).

  • Ammonia-peroxide wastewater treatment system
    Patent number: 8753513
    Abstract: A method of treating wastewater containing peroxide and ammonia includes performing a first stage peroxide pretreatment of the wastewater with a catalyst, and performing a second stage ammonia separation of the peroxide treated wastewater by a distillation process, thereby producing a concentrated ammonium hydroxide end product that is separated from the wastewater.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: June 17, 2014
    Assignee: International Business Machines Corporation
    Inventors: Linda N. Daubert, Randall P. Duggan, James M. MacDougall, James G. Sales
  • AMMONIA-PEROXIDE WASTEWATER TREATMENT SYSTEM
    Publication number: 20120111793
    Abstract: A method of treating wastewater containing peroxide and ammonia includes performing a first stage peroxide pretreatment of the wastewater with a catalyst, and performing a second stage ammonia separation of the peroxide treated wastewater by a distillation process, thereby producing a concentrated ammonium hydroxide end product that is separated from the wastewater.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 10, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Linda N. Daubert, Randall P. Duggan, James M. MacDougall, James G. Sales