Lignin conversion to fuels, chemicals and materials

Beckham, Gregg T.; Linger, Jeffrey G.; Vardon, Derek R.; Guarnieri, Michael T.; Karp, Eric M.; Franden, Mary Ann; Johnson, Christopher W.; Strathmann, Timothy J.; Pienkos, Philip T.

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

All Classifications
A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

More Options ...

Title: Lignin conversion to fuels, chemicals and materials

Abstract

Disclosed herein are methods for the production of fuels, chemicals, or materials from biomass-derived lignin, cellulose, and hemicellulose. Also provided are methods for the production of polyhydroxyalkanoates from lignocellulosic biomass and the subsequent thermal and catalytic conversion of polyhydroxyalkanoates to hydrocarbons. In addition, methods for the production of ethanol from the fermentation of polysaccharides are described.

Inventors:: Beckham, Gregg T.; Linger, Jeffrey G.; Vardon, Derek R.; Guarnieri, Michael T.; Karp, Eric M.; Franden, Mary Ann; Johnson, Christopher W.; Strathmann, Timothy J.; Pienkos, Philip T.

Issue Date:: Tue Apr 23 00:00:00 EDT 2019

Research Org.:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1568229

Patent Number(s):: 10266852

Application Number:: 14/563,299

Assignee:: Alliance for Sustainable Energy, LLC (Golden, CO); The Board of Trustees of the University of Illinois (Urbana, IL)

Patent Classifications (CPCs):: C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10L - FUELS NOT OTHERWISE PROVIDED FOR

Show more

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10G - CRACKING HYDROCARBON OILS
C10G3/47 - {containing platinum group metals or compounds thereof}

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10L - FUELS NOT OTHERWISE PROVIDED FOR
C10L1/02 - essentially based on components consisting of carbon, hydrogen, and oxygen only

C - CHEMISTRY C12 - BIOCHEMISTRY C12P - FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE {
C12P2201/00 - Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis
C12P2203/00 - Fermentation products obtained from optionally pretreated or hydrolyzed cellulosic or lignocellulosic material as the carbon source
C12P5/002 - {cyclic
C12P5/02 - acyclic {
C12P7/42 - Hydroxy-carboxylic acids
C12P7/625 - {Polyesters of hydroxy-carboxylic acids}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E50/30 - Fuel from waste

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P30/20 - Bio-feedstock

Show less

DOE Contract Number:: AC36-08GO28308

Resource Type:: Patent

Resource Relation:: Patent File Date: 12/08/2014

Country of Publication:: United States

Language:: English

Subject:: 09 BIOMASS FUELS

Citation Formats


                    Beckham, Gregg T., Linger, Jeffrey G., Vardon, Derek R., Guarnieri, Michael T., Karp, Eric M., Franden, Mary Ann, Johnson, Christopher W., Strathmann, Timothy J., and Pienkos, Philip T. Lignin conversion to fuels, chemicals and materials.  United States: N. p., 2019. 
        Web.

Copy to clipboard


                    Beckham, Gregg T., Linger, Jeffrey G., Vardon, Derek R., Guarnieri, Michael T., Karp, Eric M., Franden, Mary Ann, Johnson, Christopher W., Strathmann, Timothy J., & Pienkos, Philip T. Lignin conversion to fuels, chemicals and materials.  United States.

Copy to clipboard


                    Beckham, Gregg T., Linger, Jeffrey G., Vardon, Derek R., Guarnieri, Michael T., Karp, Eric M., Franden, Mary Ann, Johnson, Christopher W., Strathmann, Timothy J., and Pienkos, Philip T. Tue .  
        "Lignin conversion to fuels, chemicals and materials".  United States.  https://www.osti.gov/servlets/purl/1568229.

Copy to clipboard


                    
@article{osti_1568229,

  title        = {Lignin conversion to fuels, chemicals and materials},

  author       = {Beckham, Gregg T. and Linger, Jeffrey G. and Vardon, Derek R. and Guarnieri, Michael T. and Karp, Eric M. and Franden, Mary Ann and Johnson, Christopher W. and Strathmann, Timothy J. and Pienkos, Philip T.},

  abstractNote = {Disclosed herein are methods for the production of fuels, chemicals, or materials from biomass-derived lignin, cellulose, and hemicellulose. Also provided are methods for the production of polyhydroxyalkanoates from lignocellulosic biomass and the subsequent thermal and catalytic conversion of polyhydroxyalkanoates to hydrocarbons. In addition, methods for the production of ethanol from the fermentation of polysaccharides are described.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Apr 23 00:00:00 EDT 2019},

  month        = {Tue Apr 23 00:00:00 EDT 2019}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Method for producing 1,6-hexanediol and 6-hydroxycaproic acid or their esters
patent, July 2002

Fischer, Rolf; Pinkos, Rolf; Stein, Frank
US Patent Document 6,426,438
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6426438

Process for the production of muconic acid
patent, March 1988

Maxwell, Peter C.
US Patent Document 4,731,328
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4731328

Extracellular Polyhydroxyalkanoates Produced by Genetically Engineered Microorganisms
patent-application, July 2014

Sabirova, Julia; Golyshin, Peter; Ferrer, Manuel
US Patent Application 14/148820; 20140193868
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140193868

Hydroxide Catalysts for Lignin Depolymerization
patent-application, February 2016

Beckham, Gregg T.; Biddy, Mary J.; Kruger, Jacob S.
US Patent Application 14/817920; 20160052949
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160052949

Microorganisms having multiple compatible degradative energy-generating plasmids and preparation thereof
patent, March 1981

Chakrabarty, Ananda
US Patent Document 4,259,444
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4259444

Manufacture of Cellulose from Ligno-Cellulosic Products
patent, June 1936

Dryfurs, Henry
US Patent Document 2,042,705
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2042705

Plasmid, transformants and process for production of 3- carboxymuconolactone
patent, July 2012

Mase, Kohei; Shimo, Toshihisa; Ohara, Naoki
US Patent Document 8,211,683
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8211683

Biocatalysts with enhanced inhibitor tolerance
patent, December 2015

Yang, Shihui; Linger, Jeffrey G.; Franden, Mary Ann
US Patent Document 9,206,445
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9206445

Method of Extracting Resinous Material from Plant Tissue
patent, November 1932

Bent, Leavitt N.
US Patent Document 1,888,025
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/1888025

Pretreatment and Fractionation of Lignocellulosic Biomass
patent-application, September 2014

Paripati, Praveen; Dadi, Anantharam Prasad
US Patent Application 13/841707; 20140273104
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140273104

Semi-Synthetic Terephthalic Acid Via Microorganisms that Produce Muconic Acid
patent-application, October 2014

Burk, Mark J.; Osterhout, Robin E.; Sun, Jun
US Patent Application 14/308292; 20140302573
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140302573

Biomass conversion to fuels and chemicals
patent-application, January 2016

Beckham, Gregg T.; Johnson, Christopher W.; Vardon, Derek R.
US Patent Application 14/804161; 20160017381
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160017381

Continuous fermentation process and bioconversion-product recovery
patent, October 1984

Hsieh, Jih-Han
US Patent Document 4,480,034
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4480034

Process for obtaining cellulose from ligno-cellulosic raw materials
patent, January 1976

Fogarassy, Andre
US Patent Document 3,932,207
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3932207

Process for Retting or Steeping Flax and Other Vegetable Fibers
patent, August 1926

Thellier, Henri
US Patent Document 1,594,389
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/1594389

Alcoholic Treatment of Ligneous Cellulosic Material
patent, April 1936

Aronovsky, Samuel I.
US Patent Document 2,037,001
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/2037001

Synthesis of adipic acid from biomass-derived carbon sources
patent, January 1996

Frost, John W.; Draths, Karen M.
US Patent Document 5,487,987
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5487987

Hydroxide Catalysts for Lignin Depolymerization
patent-application, April 2014

Beckham, Gregg T.; Biddy, Mary J.; Chmely, Stephen C.
US Patent Application 14/047905; 20140107381
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140107381

Treatment of lignocellulosic material in an alkaline pulping liquor containing anthraquinone sulphonic acid followed by oxygen delignification
patent, June 1975

Kenig, Samuel
US Patent Document 3,888,727
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3888727

Methods of Producing 6-Carbon Chemicals Via CoA-Dependent Carbon Chain Elongation Associated with Carbon Storage
patent-application, July 2014

Botes, Adriana Lenora; Conradie, Alex Van Eck
US Patent Application 14/106124; 20140186902
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140186902

Process for production of sugars and optionally cellulose and lignin from lignocellulosic raw materials
patent, May 1985

Sinner, Michael; Dietrichs, Hans-Hermann; Puls, Jurgen
US Patent Document 4,520,105
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4520105

Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars
patent, March 1998

Black, Stuart K.; Hames, Bonnie; Myers, Michele D.
US Patent Document 5,730,837
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5730837

Pulping of lignocellulose with aqueous alcohol and alkaline earth metal salt catalyst
patent, June 1986

Chang, Pei-Ching; Paszner, Laszlo
US Patent Document 4,594,130
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4594130

Biological synthesis of difunctional alkanes from carbohydrate feedstocks
patent, March 2012

Baynes, Brian M.; Geremia, John M.
US Patent Document 8,133,704
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8133704

Conversion of Biomass to Useful Intermediates
patent-application, September 2017

Beckham, Gregg Tyler; Johnson, Christopher W.; Vardon, Derek R.
US Patent Application 15/467,761; 2017/0275655 Al
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20170275655

Similar Records in DOE Patents and OSTI.GOV collections:

Chimeric enzymes for conversion of lignin-derived chemicals

Patent Neidle, Ellen Lee; Johnson, Christopher W.; Beckham, Gregg Tyler; ...

Disclosed herein are enzymes useful for the dealkylation of aromatic substrates, including the conversion of guaiacol or guaethol to catechol. Methods of converting aromatic substrates found in lignin-based feedstocks such as pyrolysis oil into products such as catechol are also disclosed. Also presented herein are methods for rapidly evolving and optimizing genetic regions.
Full Text Available
Structured catalyst bed and method for conversion of feed materials to chemical products and liquid fuels

Patent Wang, Yong; Liu, Wei

The present invention is a structured monolith reactor and method that provides for controlled Fischer-Tropsch (FT) synthesis. The invention controls mass transport limitations leading to higher CO conversion and lower methane selectivity. Over 95 wt % of the total product liquid hydrocarbons obtained from the monolithic catalyst are in the carbon range of C.sub.5-C.sub.18. The reactor controls readsorption of olefins leading to desired products with a preselected chain length distribution and enhanced overall reaction rate. And, liquid product analysis shows readsorption of olefins is reduced, achieving a narrower FT product distribution.
Full Text Available
Conversion of lignin into bioplastics and lipid fuels

Patent Yuan, Shuhua; Xie, Shangxian; Wang, Xin

The present invention provides methods and compositions for increasing lignin degradation to produce a biological product. Also provided are methods for increasing expression of laccase in a bacterial species to produce increased lignin degradation. Also provided are bacterial cells and commodities or commodity produces produced from such methods.
Full Text Available
Lignases and aldo-keto reductases for conversion of lignin-containing materials to fermentable products

Patent Scharf, Michael; Sethi, Amit

Termites have specialized digestive systems that overcome the lignin barrier in wood to release fermentable simple sugars. Using the termite Reticulitermes flavipes and its gut symbionts, high-throughput titanium pyrosequencing and proteomics approaches experimentally compared the effects of lignin-containing diets on host-symbiont digestome composition. Proteomic investigations and functional digestive studies with recombinant lignocellulases conducted in parallel provided strong evidence of congruence at the transcription and translational levels and provide enzymatic strategies for overcoming recalcitrant lignin barriers in biofuel feedstocks. Briefly described, therefore, the disclosure provides a system for generating a fermentable product from a lignified plant material, the system comprising a cooperating series of at least two catalytically active polypeptides, where said catalytically active polypeptides are selected from the group consisting of: cellulase Cell-1,more » « less
Full Text Available
Termite enzymes and uses thereof for in vitro conversion of lignin-containing materials to fermentable products

Patent Scharf, Michael E; Boucias, Drion G; Tartar, Aurelien; ...

The disclosure provides isolated nucleic acid molecules derived from the gut of the termite R flavipes, recombinant nucleic acid molecules comprising a vector and an isolated heterologous nucleic acid molecule operably inserted therein, whereby, when transformed into an appropriate host cell system, the heterologous nucleic acid sequence is expressed as a polypeptide having an activity similar to that when expressed in the gut of the termite R. flavipes. The recombinant nucleic acid molecules can comprise more than one heterologous nucleic acid molecule such that more than one polypeptide may be expressed by the host system. The expressed polypeptides may bemore » « less
Full Text Available

Similar Records

Title: Lignin conversion to fuels, chemicals and materials

Abstract

Citation Formats

Method for producing 1,6-hexanediol and 6-hydroxycaproic acid or their esters patent, July 2002

Process for the production of muconic acid patent, March 1988

Extracellular Polyhydroxyalkanoates Produced by Genetically Engineered Microorganisms patent-application, July 2014

Hydroxide Catalysts for Lignin Depolymerization patent-application, February 2016

Microorganisms having multiple compatible degradative energy-generating plasmids and preparation thereof patent, March 1981

Manufacture of Cellulose from Ligno-Cellulosic Products patent, June 1936

Plasmid, transformants and process for production of 3- carboxymuconolactone patent, July 2012

Biocatalysts with enhanced inhibitor tolerance patent, December 2015

Method of Extracting Resinous Material from Plant Tissue patent, November 1932

Pretreatment and Fractionation of Lignocellulosic Biomass patent-application, September 2014

Semi-Synthetic Terephthalic Acid Via Microorganisms that Produce Muconic Acid patent-application, October 2014

Biomass conversion to fuels and chemicals patent-application, January 2016

Continuous fermentation process and bioconversion-product recovery patent, October 1984

Process for obtaining cellulose from ligno-cellulosic raw materials patent, January 1976

Process for Retting or Steeping Flax and Other Vegetable Fibers patent, August 1926

Alcoholic Treatment of Ligneous Cellulosic Material patent, April 1936

Synthesis of adipic acid from biomass-derived carbon sources patent, January 1996

Hydroxide Catalysts for Lignin Depolymerization patent-application, April 2014

Treatment of lignocellulosic material in an alkaline pulping liquor containing anthraquinone sulphonic acid followed by oxygen delignification patent, June 1975

Methods of Producing 6-Carbon Chemicals Via CoA-Dependent Carbon Chain Elongation Associated with Carbon Storage patent-application, July 2014

Process for production of sugars and optionally cellulose and lignin from lignocellulosic raw materials patent, May 1985

Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars patent, March 1998

Pulping of lignocellulose with aqueous alcohol and alkaline earth metal salt catalyst patent, June 1986

Biological synthesis of difunctional alkanes from carbohydrate feedstocks patent, March 2012

Conversion of Biomass to Useful Intermediates patent-application, September 2017

Method for producing 1,6-hexanediol and 6-hydroxycaproic acid or their esters
patent, July 2002

Process for the production of muconic acid
patent, March 1988

Extracellular Polyhydroxyalkanoates Produced by Genetically Engineered Microorganisms
patent-application, July 2014

Hydroxide Catalysts for Lignin Depolymerization
patent-application, February 2016

Microorganisms having multiple compatible degradative energy-generating plasmids and preparation thereof
patent, March 1981

Manufacture of Cellulose from Ligno-Cellulosic Products
patent, June 1936

Plasmid, transformants and process for production of 3- carboxymuconolactone
patent, July 2012

Biocatalysts with enhanced inhibitor tolerance
patent, December 2015

Method of Extracting Resinous Material from Plant Tissue
patent, November 1932

Pretreatment and Fractionation of Lignocellulosic Biomass
patent-application, September 2014

Semi-Synthetic Terephthalic Acid Via Microorganisms that Produce Muconic Acid
patent-application, October 2014

Biomass conversion to fuels and chemicals
patent-application, January 2016

Continuous fermentation process and bioconversion-product recovery
patent, October 1984

Process for obtaining cellulose from ligno-cellulosic raw materials
patent, January 1976

Process for Retting or Steeping Flax and Other Vegetable Fibers
patent, August 1926

Alcoholic Treatment of Ligneous Cellulosic Material
patent, April 1936

Synthesis of adipic acid from biomass-derived carbon sources
patent, January 1996

Hydroxide Catalysts for Lignin Depolymerization
patent-application, April 2014

Treatment of lignocellulosic material in an alkaline pulping liquor containing anthraquinone sulphonic acid followed by oxygen delignification
patent, June 1975

Methods of Producing 6-Carbon Chemicals Via CoA-Dependent Carbon Chain Elongation Associated with Carbon Storage
patent-application, July 2014

Process for production of sugars and optionally cellulose and lignin from lignocellulosic raw materials
patent, May 1985

Method of separating lignocellulosic material into lignin, cellulose and dissolved sugars
patent, March 1998

Pulping of lignocellulose with aqueous alcohol and alkaline earth metal salt catalyst
patent, June 1986

Biological synthesis of difunctional alkanes from carbohydrate feedstocks
patent, March 2012

Conversion of Biomass to Useful Intermediates
patent-application, September 2017