Patents by Inventor Andrew Held

Andrew Held 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).

  • Processes for converting biomass-derived feedstocks to chemicals and liquid fuels
    Patent number: 9944581
    Abstract: The present invention provides processes, methods, and systems for converting biomass-derived feedstocks to liquid fuels and chemicals. The method generally includes the reaction of a hydrolysate from a biomass deconstruction process with hydrogen and a catalyst to produce a reaction product comprising one of more oxygenated compounds. The process also includes reacting the reaction product with a condensation catalyst to produce C4+ compounds useful as fuels and chemicals.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: April 17, 2018
    Assignee: Virent, Inc.
    Inventors: Andrew Held, Elizabeth Woods, Randy Cortright, Matthew Gray
  • Process for converting biomass to aromatic hydrocarbons
    Patent number: 9873836
    Abstract: The present invention provides methods, reactor systems, and catalysts for increasing the yield of aromatic hydrocarbons produced while converting biomass to hydrocarbons. The invention includes methods of using catalysts to increase the yield of benzene, toluene, and mixed xylenes in the hydrocarbon product.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: January 23, 2018
    Assignee: Virent, Inc.
    Inventors: Paul Blommel, Andrew Held, Ralph Goodwin, Randy Cortright
  • Process for purifying lignocellulosic feedstocks
    Patent number: 9862893
    Abstract: The present invention includes methods for removing mineral acids, mineral salts and contaminants, such as metal impurities, ash, terpenoids, stilbenes, flavonoids, proteins, and other inorganic products, from a lignocellulosic feedstock stream containing organic acids, carbohydrates, starches, polysaccharides, disaccharides, monosaccharides, sugars, sugar alcohols, phenols, cresols, and other oxygenated hydrocarbons, in a manner that maintains a portion of the organic acids and other oxygenated hydrocarbons in the product stream.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: January 9, 2018
    Assignee: Virent, Inc.
    Inventors: Matthew Gray, Megan Matthes, Thomas Nelson, Andrew Held
  • PROCESSES FOR CONVERTING BIOMASS-DERIVED FEEDSTOCKS TO CHEMICALS AND LIQUID FUELS
    Publication number: 20170247307
    Abstract: The present invention provides processes, methods, and systems for converting biomass-derived feedstocks to liquid fuels and chemicals. The method generally includes the reaction of a hydrolysate from a biomass deconstruction process with hydrogen and a catalyst to produce a reaction product comprising one of more oxygenated compounds. The process also includes reacting the reaction product with a condensation catalyst to produce C4+ compounds useful as fuels and chemicals.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 31, 2017
    Inventors: Andrew Held, Elizabeth Woods, Randy Cortright, Matthew Gray
  • Processes for converting biomass-derived feedstocks to chemicals and liquid fuels
    Patent number: 9656937
    Abstract: The present invention provides processes, methods, and systems for converting biomass-derived feedstocks to liquid fuels and chemicals. The method generally includes the reaction of a hydrolysate from a biomass deconstruction process with hydrogen and a catalyst to produce a reaction product comprising one of more oxygenated compounds. The process also includes reacting the reaction product with a condensation catalyst to produce C4+ compounds useful as fuels and chemicals.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: May 23, 2017
    Assignee: Virent, Inc.
    Inventors: Andrew Held, Elizabeth Woods, Randy Cortright, Matthew Gray
  • PROCESSES FOR CONVERTING BIOMASS-DERIVED FEEDSTOCKS TO CHEMICALS AND LIQUID FUELS
    Publication number: 20160304427
    Abstract: The present invention provides processes, methods, and systems for converting biomass-derived feedstocks to liquid fuels and chemicals. The method generally includes the reaction of a hydrolysate from a biomass deconstruction process with hydrogen and a catalyst to produce a reaction product comprising one of more oxygenated compounds. The process also includes reacting the reaction product with a condensation catalyst to produce C4+ compounds useful as fuels and chemicals.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Inventors: Andrew Held, Elizabeth Woods, Randy Cortright, Matthew Gray
  • Processes for converting biomass-derived feedstocks to chemicals and liquid fuels
    Patent number: 9382185
    Abstract: The present invention provides processes, methods, and systems for converting biomass-derived feedstocks to liquid fuels and chemicals. The method generally includes the reaction of a hydrolysate from a biomass deconstruction process with hydrogen and a catalyst to produce a reaction product comprising one of more oxygenated compounds. The process also includes reacting the reaction product with a condensation catalyst to produce C4+ compounds useful as fuels and chemicals.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: July 5, 2016
    Assignee: Virent, Inc.
    Inventors: Andrew Held, Elizabeth Woods, Randy Cortright, Matthew Gray
  • Process for Converting Biomass to Aromatic Hydrocarbons
    Publication number: 20140349361
    Abstract: The present invention provides methods, reactor systems, and catalysts for increasing the yield of aromatic hydrocarbons produced while converting biomass to hydrocarbons. The invention includes methods of using catalysts to increase the yield of benzene, toluene, and mixed xylenes in the hydrocarbon product.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 27, 2014
    Applicant: Virent, Inc.
    Inventors: Paul Blommel, Andrew Held, Ralph Goodwin, Randy Cortright
  • Processes for Converting Biomass-Derived Feedstocks to Chemicals and Liquid Fuels
    Publication number: 20140273118
    Abstract: The present invention provides processes, methods, and systems for converting biomass-derived feedstocks to liquid fuels and chemicals. The method generally includes the reaction of a hydrolysate from a biomass deconstruction process with hydrogen and a catalyst to produce a reaction product comprising one of more oxygenated compounds. The process also includes reacting the reaction product with a condensation catalyst to produce C4+ compounds useful as fuels and chemicals.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: Virent, Inc.
    Inventors: Andrew Held, Elizabeth Woods, Randy Cortright, Matthew Gray
  • PROCESS FOR PURIFYING LIGNOCELLULOSIC FEEDSTOCKS
    Publication number: 20120289692
    Abstract: The present invention includes methods for removing contaminants, such as mineral salts, mineral acids, terpenoids, stilbenes, flavonoids, proteinaceous materials, metal impurities, ash and other organic products, from a lignocellulosic feedstock stream containing oxygenated hydrocarbons.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Inventors: Matthew Gray, Megan Matthes, Thomas Nelson, Andrew Held