Patents by Inventor Julie Friend

Julie Friend 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).

  • Biomass pretreatment
    Patent number: 8445236
    Abstract: A method is provided for producing an improved pretreated biomass product for use in saccharification followed by fermentation to produce a target chemical that includes removal of saccharification and or fermentation inhibitors from the pretreated biomass product. Specifically, the pretreated biomass product derived from using the present method has fewer inhibitors of saccharification and/or fermentation without a loss in sugar content.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: May 21, 2013
    Assignees: Alliance for Sustainable Energy LLC, E I du Pont de Nemours and Company
    Inventors: Susan Marie Hennessey, Julie Friend, Richard T. Elander, Melvin P. Tucker, III
  • Integration of alternative feedstreams for biomass treatment and utilization
    Patent number: 7910338
    Abstract: The present invention provides a method for treating biomass composed of integrated feedstocks to produce fermentable sugars. One aspect of the methods described herein includes a pretreatment step wherein biomass is integrated with an alternative feedstream and the resulting integrated feedstock, at relatively high concentrations, is treated with a low concentration of ammonia relative to the dry weight of biomass. In another aspect, a high solids concentration of pretreated biomass is integrated with an alternative feedstream for saccharifiaction.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: March 22, 2011
    Assignees: E. I. du Pont de Nemours and Company, Alliance for Sustainable Energy LLC
    Inventors: Susan Marie Hennessey, Julie Friend, James B. Dunson, Jr., Melvin P. Tucker, III, Richard T. Elander, Bonnie Hames
  • Biomass treatment method
    Patent number: 7819976
    Abstract: A method for treating biomass was developed that uses an apparatus which moves a biomass and dilute aqueous ammonia mixture through reaction chambers without compaction. The apparatus moves the biomass using a non-compressing piston. The resulting treated biomass is saccharified to produce fermentable sugars.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: October 26, 2010
    Assignees: E. I. du Pont de Nemours and Company, Alliance For Sustainable Energy LLC
    Inventors: Julie Friend, Richard T. Elander, Melvin P. Tucker, III, Robert C. Lyons
  • Biomass Treatment Method
    Publication number: 20090050134
    Abstract: A method for treating biomass was developed that uses an apparatus which moves a biomass and dilute aqueous ammonia mixture through reaction chambers without compaction. The apparatus moves the biomass using a non-compressing piston. The resulting treated biomass is saccharified to produce fermentable sugars.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 26, 2009
    Inventors: Julie Friend, Richard T. Elander, Melvin P. Tucker, III, Robert C. Lyons
  • Biomass Treatment Apparatus
    Publication number: 20090053800
    Abstract: An apparatus was developed for treatment of biomass in which reactants are added to biomass and the biomass mixture is moved through the apparatus without compacting under force of a non-compacting piston. Treatment systems used in this reactor result in effectively treated biomass that is particularly suitable for subsequent saccharification to produce fermentable sugars.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 26, 2009
    Inventors: Julie Friend, Richard T. Elander, Robert C. Lyons, Melvin P. Tucker, III
  • Biomass Pretreatment
    Publication number: 20090053770
    Abstract: A method is provided for producing an improved pretreated biomass product for use in saccharification followed by fermentation to produce a target chemical that includes removal of saccharification and or fermentation inhibitors from the pretreated biomass product. Specifically, the pretreated biomass product derived from using the present method has fewer inhibitors of saccharification and/or fermentation without a loss in sugar content.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 26, 2009
    Inventors: Susan Marie Hennessey, Julie Friend, Richard T. Elander, Melvin P. Tucker, III
  • Integration of alternative feedstreams for biomass treatment and utilization
    Publication number: 20070037259
    Abstract: The present invention provides a method for treating biomass composed of integrated feedstocks to produce fermentable sugars. One aspect of the methods described herein includes a pretreatment step wherein biomass is integrated with an alternative feedstream and the resulting integrated feedstock, at relatively high concentrations, is treated with a low concentration of ammonia relative to the dry weight of biomass. In another aspect, a high solids concentration of pretreated biomass is integrated with an alternative feedstream for saccharifiaction.
    Type: Application
    Filed: April 12, 2006
    Publication date: February 15, 2007
    Inventors: Susan Hennessey, Julie Friend, James Dunson, Melvin Tucker, Richard Elander, Bonnie Hames