Patents by Inventor Harold Dennis Spriggs

Harold Dennis Spriggs 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).

  • Integrated biofuel processing system
    Patent number: 8802905
    Abstract: A unique, integrated non-obvious pathway to convert biomass to biofuels using integration of chemical processes is described herein. The present invention is simple, direct, and provides for the shortest or minimum path between biomass and transportation fuels with alcohols as intermediates, while avoiding hydrogen use during processing. Furthermore, the present invention allows the manufacture of “drop-in” substitutable fuels to be used as-is without modifications instead of conventional petroleum based fuels. The processing described herein is done under mild conditions, under relatively low pressures and temperatures, and under non-corrosive conditions obviating use of special equipment or materials.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: August 12, 2014
    Assignees: The Texas A&M University System, Byogy Renewables, Inc.
    Inventors: Mahmoud M. El-Halwagi, Kenneth R. Hall, Harold Dennis Spriggs
  • INTEGRATED BIOFUEL PROCESSING SYSTEM
    Publication number: 20120095272
    Abstract: A unique, integrated non-obvious pathway to convert biomass to biofuels using integration of chemical processes is described herein. The present invention is simple, direct, and provides for the shortest or minimum path between biomass and transportation fuels with alcohols as intermediates, while avoiding hydrogen use during processing. Furthermore, the present invention allows the manufacture of “drop-in” substitutable fuels to be used as-is without modifications instead of conventional petroleum based fuels. The processing described herein is done under mild conditions, under relatively low pressures and temperatures, and under non-corrosive conditions obviating use of special equipment or materials.
    Type: Application
    Filed: June 18, 2010
    Publication date: April 19, 2012
    Applicant: THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Mahmoud M. El-Halwagi, Kenneth R. Hall, Harold Dennis Spriggs
  • Continuous fluid treatment system and method
    Patent number: 7959813
    Abstract: Systems, apparatus and methods for treating a contaminated fluid stream are provided. The systems may include a treatment column fluidly interconnected to a regeneration column, the regeneration column being adapted to continuously receive solid spent media from the treatment column to continuously regenerate such solid spent media.
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: June 14, 2011
    Assignee: Matrix Process Integration
    Inventors: Harold Dennis Spriggs, Amal M. El-Halwagi
  • Continuous Fluid Treatment System
    Publication number: 20080264866
    Abstract: Systems, apparatus and methods for treating a contaminated fluid stream are provided. The systems may include a treatment column fluidly interconnected to a regeneration column, the regeneration column being adapted to continuously receive solid spent media from the treatment column to continuously regenerate such solid spent media.
    Type: Application
    Filed: September 5, 2006
    Publication date: October 30, 2008
    Applicant: MATRIX PROCESS INTEGRATION
    Inventors: Harold Dennis Spriggs, Amal M. El-Halwagi