Patents by Inventor Stephen C. O'Brien

Stephen C. O'Brien 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).

  • Potato wastewater treatment method
    Patent number: 6555003
    Abstract: A method for treating potato wastewater comprising the steps of pretreating a potato wastewater stream including suspended and dissolved solids with an alpha amylase enzyme to hydrolyze starch in the wastewater, ultra-filtering the enzyme-treated wastewater from step (a) to filter and remove a portion of the suspended solids in a first concentrate stream separated from the wastewater, and reverse osmosis-filtering the ultra-filtered wastewater from step (b) to remove at least about 70% of the wastewater dissolved and suspended solids in a second concentrate stream.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: April 29, 2003
    Assignee: Basic American, Inc.
    Inventors: Larry S. Ferro, Stephen C. O'Brien, Henry J. Camin, Bruce M. Wright
  • Potato wastewater treatment method
    Publication number: 20020096473
    Abstract: A method for treating potato wastewater comprising the steps of pretreating a potato wastewater stream including suspended and dissolved solids with an alpha amylase enzyme to hydrolyze starch in the wastewater, ultra-filtering the enzyme-treated wastewater from step (a) to filter and remove a portion of the suspended solids in a first concentrate stream separated from the wastewater, and reverse osmosis-filtering the ultra-filtered wastewater from step (b) to remove at least about 70% of the wastewater dissolved and suspended solids in a second concentrate stream.
    Type: Application
    Filed: January 19, 2001
    Publication date: July 25, 2002
    Inventors: Larry S. Ferro, Stephen C. O'Brien, Henry J. Camin, Bruce M. Wright