1
Quang A Nguyen, Fred A Keller, Melvin P Tucker: Ethanol production with dilute acid hydrolysis using partially dried lignocellulosics. Midwest Research Institute, Paul J White, December 9, 2003: US06660506 (72 worldwide citation)

A process of converting lignocellulosic biomass to ethanol, comprising hydrolyzing lignocellulosic materials by subjecting dried lignocellulosic material in a reactor to a catalyst comprised of a dilute solution of a strong acid and a metal salt to lower the activation energy (i.e., the temperature) ...


2
Quang A Nguyen, Melvin P Tucker: Dilute acid/metal salt hydrolysis of lignocellulosics. Midwest Research Institute, Paul J White, July 23, 2002: US06423145 (60 worldwide citation)

A modified dilute acid method of hydrolyzing the cellulose and hemicellulose in lignocellulosic material under conditions to obtain higher overall fermentable sugar yields than is obtainable using dilute acid alone, comprising:


3
James B Dunson Jr, Melvin P Tucker III, Richard T Elander, Susan Marie Hennessey: Treatment of biomass to obtain a target chemical. E I du Pont de Nemours and Company, Alliance For Sustainable Energy, August 24, 2010: US07781191 (23 worldwide citation)

Target chemicals were produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.


4
Michael E Himmel, William S Adney, Melvin P Tucker, Karel Grohmann: Thermostable purified endoglucanas from acidothermus cellulolyticus ATCC 43068. Midwest Research Institute, Ken Richardson, January 4, 1994: US05275944 (22 worldwide citation)

A purified low molecular weight cellulase endoglucanase I having a molecular weight of between about 57,420 to about 74,580 daltons from Acidothermus cellulolyticus (ATCC 43068). The cellulase is water soluble, possesses both C.sub.1 and C.sub.x types of enzyme activity, a high degree of stability t ...


5
Susan M Hennessey, Mayis Seapan, Richard T Elander, Melvin P Tucker: Process for concentrated biomass saccharification. E I du Pont de Nemours and Company, Alliance for Sustainable Energy, October 5, 2010: US07807419 (21 worldwide citation)

Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction ...


6
Stanley M Lastick, Ali Mohagheghi, Melvin P Tucker, Karel Grohmann: Combined enzyme mediated fermentation of cellulous and xylose to ethanol by Schizosaccharoyces pombe, cellulase, .beta.-glucosidase, and xylose isomerase. The United States of America represented by the United States Department of Energy, Kenneth Richardson, Thomas G Anderson, William R Moser, December 13, 1994: US05372939 (20 worldwide citation)

A process for producing ethanol from mixed sugar streams from pretreated biomass comprising xylose and cellulose using enzymes to convert these substrates to fermentable sugars; selecting and isolating a yeast Schizosaccharomyces pombe ATCC No. 2476, having the ability to ferment these sugars as the ...


7
Susan Marie Hennessey, Julie Friend, James B Dunson Jr, Melvin P Tucker III, Richard T Elander, Bonnie Hames: Integration of alternative feedstreams for biomass treatment and utilization. E I du Pont de Nemours and Company, Alliance for Sustainable Energy, March 22, 2011: US07910338 (19 worldwide citation)

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, a ...


8
James B Dunson Jr, Richard T Elander, Melvin P Tucker III, Susan Marie Hennessey: Treatment of biomass to obtain ethanol. E I du Pont de Nemours and Company, Alliance for Sustainable Energy, August 16, 2011: US07998713 (12 worldwide citation)

Ethanol was produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.


9
Melvin P Tucker, Karel Grohmann, Michael E Himmel, Ali Mohagheghi: Thermostable purified endoglucanase from thermophilic bacterium acidothermus cellulolyticus. Midwest Research Institute, Ken Richardson, May 5, 1992: US05110735 (11 worldwide citation)

A substantially purified high molecular weight cellulase enzyme having a molecular weight of between about 156,000 to about 203,400 daltons isolated from the bacterium Acidothermus cellulolyticus (ATCC 43068) and a method of producing it are disclosed. The enzyme is water soluble, possesses both C.s ...


10
Julie Friend, Richard T Elander, Melvin P Tucker III, Robert C Lyons: Biomass treatment method. E I du Pont de Nemours and Company, Alliance For Sustainable Energy, October 26, 2010: US07819976 (7 worldwide citation)

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 fermentab ...



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