2023
AIR SEPARATION SORBENT AND VACUUM ASSISTED PRESSURE SWING ADSORPTION PROCESS USING THE SAME
Dr. Gokhan Alptekin, Dr. Douwe Bruinsma, Dr. Ambalavanan Jayaraman, Mr. Brandon Gushlaw
U.S. Patent No. 11,786,859 B2
October 17, 2023
A vacuum assisted pressure swing adsorption device for purifying oxygen from air, comprising: a first adsorption bed of LiLSX adsorbent and second adsorption bed of AgLiLSX adsorbent, wherein the first adsorption bed and the second adsorption bed are connected to each other in series. A method for producing medical oxygen using a vacuum assisted pressure swing adsorption device comprising: a first adsorption bed of LiLSX adsorbent and second adsorption bed of AgLiLSX adsorbent, wherein the first adsorption bed and the second adsorption bed are connected to each other in series.
2022
HYDROPHOBIC SORBENTS FOR CO2/H2O DISPLACEMENT DESORPTION APPLICATIONS
Dr. Chuansheung Bai, Dr. Majosefina Cunningham, Dr. Patrick P. McCall, Dr. Hans Thomann, Dr. Jeannine Elliott, Dr. Vinh Nguyen
U.S. Patent No. 11,420,182 B2
August 23, 2022
The disclosure generally relates to CCS sorbents, particularly for CO2/H2O displacement desorption process. The sorbent includes an aluminum oxide support and an alkali metal salt impregnated on the support, and a silicon modification of the sorbent to reduce water uptake by the sorbent and make it more hydrophobic. The silicon modification can be an organosilyl moiety added after the initial sorbent is complete, or a silica source added to the aluminum oxide structure, typically via impregnation. The sorbents demonstrate better H2O/CO2 ratios. Compositions and methods of making are disclosed.
2021
MIXED METAL SORBENTS FOR CO2/H2O DISPLACEMENT DESORPTION
Dr. Chuansheung Bai, Dr. Majosefina Cunningham, Dr. Patrick P. McCall, Dr. Hans Thomann, Dr. Jeannine Elliott, Dr. Vinh Nguyen
U.S. Patent No. 11,198,109 B2
December 14, 2021
The disclosure generally relates to CCS sorbents, particularly for CO2/H2O displacement desorption process. The sorbents include an aluminum oxide support that includes two alkali metal salts impregnated on the support. The two alkali metals include a potassium metal salts and a second alkali metal salt which is not potassium. The second metal salt disrupts poisoning effects that degrade sorbent lifetime. The sorbents demonstrate improved CO2 loadings and better H2O/CO2 ratios, as well as improved stability. Compositions and methods of making are disclosed
COMPOSITION AND METHOD FOR DECONTAMINATING OPIODS ON SURFACES
Dr. William Bell, Dr. Brian France
U.S. Patent No. 11,090,520 B2
August 17, 2021
A composition that can decontaminate opioids on surfaces or objects, and in particular decontaminate fentanyls on surfaces using an opioid-active reagent and an opioid-effective solubilizing agent, which is a mixture of an alkyl dimethylamine oxide surfactant, an alkyl dimethylamine oxide surfactant, a C8-18 alkyl polyethylene glycol sorbitan fatty ester surfactant, and a C12-14 secondary alcohol ethoxylate surfactant. Preferably, the opioid-active reagent is chlorine dioxide. Additionally, methods for decontaminating opioids on surfaces using this composition.
RAPID FILL COMPRESSED GAS STORAGE TANK
Dr. Ambalavanan Jayaraman, Mr. Michael Bonnema
U.S. Patent No. 11,079,068 B2
August 3, 2021
A method for rapidly filling a compressed gas storage tank with a moderated temperature rise using a Coanda nozzle to inject the feed gas into the tank and using the Coanda nozzle to direct the feed gas along the inner surface of the storage tank; entraining the stored gas with the feed gas that is flowing under the influence of the Coanda effect to flow along the inner surface of the gas storage tank; and transferring heat from the flowing gas to the external walls of the tank. Also, a compressed gas storage tank for rapid filling with a moderated temperature rise comprising: a gas storage tank and a Coanda nozzle capable of directing feed gas that is injected into the gas storage tank along the inner surface of the gas storage tank.
CARBON SORBENT FOR REMOVAL OF METAL CATALYSTS FROM PHARMACEUTICALS
Dr. Girish Srinivas, Dr. Steven Dietz
U.S. Patent No. 11,077,421 B2
August 3, 2021
The present invention relates to a carbon sorbent the can selectively remove platinum-group metals and other heavy metals such as tin without co-removing organic synthesis products including pharmaceutical intermediates and finished Active Pharmaceutical Ingredients (APis ). The carbon sorbents of the present invention are made from low-cost, high purity starting materials and the resulting carbon sorbents are also very pure. The carbon sorbents possess a combination of certain nitrogen and phosphorous groups combined with mesoporosity (2 to 50 nm diameter pores) that proves the high metal adsorption.
PROCESS FOR GENERATING HIGH PURITY SYNTHESIS GAS HYDROGEN FROM HEAVY OIL OR HYDROCARBONS
Dr. Girish Srinivas, Dr. Steven C. Gebhard, Dr. Robert J. Copeland, Mr. Steve Schwab
U.S. Patent No. 10,899,973 B1
January 26, 2021
The present invention provides a steam reforming process for heavy oil or hydrocarbons using a circulating fluidized bed reactor, the process having a reforming step and a regeneration step, wherein the reforming step and the regeneration step comprise a fluidized reactor containing a fluidizable nickel-containing reforming catalyst and produce hydrogen as a product of the reforming bed. The invention produces high purity hydrogen in the synthesis gas product stream and avoids irreversible fouling on the catalyst.
2020
BURN SAVER DEVICE
Dr. Girish Srinivas, Mr. Michael Karpuk, Dr. Steven Gebhard, Mr. Joe Fredrickson, Mr. Andrew Galloway
U.S. Patent No. 10,876,901 B1
December 29, 2020
A decoupling radiant and convective heat sensing device having sensor elements facing in different directions, and a decoupling radiant and convective heat sensing device having sensor elements facing in different directions with a means for determining the remaining time before a Self Contained Breathing Apparatus facemask will become compromised by dangerous heat conditions.
2019
HUMIDITY TOLERANT CARBON DIOXIDE GENERATOR FOR ARTHROPOD TRAP AND METHOD OF USING SAME
Dr. Brady Clapsaddle, Mr. Joe Fredrickson, Dr. William L. Bell, Mr. Trevor Haastad, Mr. Jeff Martin
U.S. Patent No. 10,420,345 B2
September 24, 2019
The present invention provides a humidity tolerant CO2 generator that operates in combination with an arthropod trap. The CO2 generator comprises a means for controllably adding solid pellets to an aqueous acid solution, and optionally includes a sound-based counting system for counting the number of pellets dispensed from a feeder reservoir and into a reaction chamber. The invention also provides a method of using the same.
NITROGEN AND PHOSPHOROUS DOPED CARBON SUPPORTED NANOPARTICLE PLATINUM ELECTROCATALYST AND METHOD OF MAKING
Dr. Vinh T. Nguyen, Dr. Steven D. Dietz, Dr. Stephen N. Paglieri
U.S. Patent No. 10,384,193 B2
August 20, 2019
A platinum-carbon electrocatalyst material comprising a carbon support having a minimum BET surface area of 1000 m2/g, a nitrogen content of at least 2.5 weight percent, which is present in the form of pyridine, pyridone or pyrrole, a phosphorous content of at least 3 weight percent, which is present in the form of phosphate and phosphonate, and a plurality of platinum nanoparticles dispersed on the carbon support having a maximum average particle diameter of 1.5 nm.
PROCESS FOR GENERATING HYDROGEN FROM HEAVY OIL OR HYDROCARBONS
Dr. Girish Srinivas, Dr. Steven C. Gebhard, Dr. Robert J. Copeland
U.S. Patent No. 10,266,405 B1
April 23, 2019
2018
COOLING PROCESS AND SYSTEM FOR DRY COOLING POWER PLANTS
Dr. Girish Srinivas, , Dr. Steven C. Gebhard, Dr. Robert J. Copeland, Dr. David P. Eisenberg
U.S. Patent No. 9,927,178 B1
March 27, 2018
METHODS FOR PLANT PROTECTION
Dr. William L. Bell, Dr. C. Brian France
U.S. Patent No. 9,901,098 B2
February 27, 2018
2017
BURN SAVER DEVICE
Dr. Girish Srinivas, Mr. Michael E. Karpuk, Dr. Steven Gebhard, Mr. Joe Fredrickson
U.S. Patent No. 9,823,134 B1
November 21, 2017
METHODS OF MAKING CONTINUOUS FIBER-POLYOLEFIN COMPOSITES
Dr. Michael D. Diener
U.S. Patent No. 9,808,967 B1
November 7, 2017
TRIARYLMETHANE DYE-OXIMATE COMPOUNDS
Dr. W. Wallace Ellis, III, Dr. Brian J. Elliott
U.S. Patent No. 9,714,346 B1
July 25, 2017
COOLING GARMENT
Dr. Robert J. Copeland, Dr. Girish Srinivas, Mr. John D. Wright, Dr. Steven C. Gebhard
U.S. Patent No. 9,635,889
May 2, 2017
BREATHING APPARATUS, AND METHOD FOR CONTROLLING TEMPERATURE FLUCTUATIONS
Mr. John D. Wright, Dr. Robert J. Copeland, Dr. Girish Srinivas, Dr. Steven C. Gebhard, Mr. Michael E. Karpuk
U.S. Patent No. 9,597,532
March 21, 2017
2016
CONTINUOUS FIBER-POLYOLEFIN COMPOSITES AND METHODS OF MAKING
Dr. Michael D. Diener
U.S. Patent No. 9,518,171
December 13, 2016
NON-DESTRUCTIVE EVALUATION OF FUNCTIONAL FABRICS
Dr. C. Brian France, Dr. W. Wallace Ellis, Dr. Brady Clapsaddle, Dr. William L. Bell, Dr. Ronald L. Cook
U.S. Patent No. 9,476,159
October 25, 2016
MERCURY REMOVAL SORBENTS
Dr. Gokhan Alptekin
U.S. Patent No. 9,295,984
March 29, 2016
SURFACTANT COMPOSITION AND METHOD FOR DECONTAMINATION
Dr. Allen David Willey, Dr. Valerie Jean Bradford, Dr. Claire Rebecca Yates, Dr. Jacob Robert Adams, Dr. Ronak V. Rughhani, Dr. C. Brian France
U.S. Patent No. 9,295,865
March 29, 2016
POLYTHIOL CURING AGENTS WITH LOW ODOR
Dr. Silvia D. Luebben
U.S. Patent No. 9,290,462
March 22, 2016
2015
HIGH CAPACITY CARBON DIOXIDE SORBENT
Dr. Steven D. Dietz, Dr. Gokhan Alptekin, Dr. Ambalavanan Jayaraman
U.S. Patent No. 9,120,079
September 1, 2015
METHOD OF ENCAPSULATING WASTE
Dr. C. Brian France
U.S. Patent No. 9,044,793
June 2, 2015
A method of encapsulating and safely transporting hazardous waste is disclosed. The method comprises the steps of: first, providing a waste object at a first location; second. covering the waste object with a closed cell polymer foam; third, allowing a sufficient time for the closed cell polymer foam to cure; and fourth, transporting the covered waste object to a second location. In another embodiment the method comprises the steps of: first, providing a waste object at a first location; second. treating the waste object to decontaminate or neutralize the hazardous waste; third, covering the waste object with a closed cell polymer foam; fourth, allowing a sufficient time for the closed cell polymer foam to cure; and fifth, transporting the covered waste object to a second location.
RENEWABLE POLYMER AND METHOD OF MAKING
Dr. Silvia D. Luebben, Dr. James W. Raebiger, Dr. Aaron Skaggs
U.S. Patent No. 9,040,635
May 26, 2015
2014
LOW TEMPERATURE SULFUR DIOXIDE OXIDATION CATALYST FOR SULFURIC ACID MANUFACTURE
Dr. Girish Srinivas, Dr. Steven C. Gebhard
U.S. Patent No. 8,758,718
June 24, 2014
2012
HIGH TEMPERATURE GAS DESULFURIZATION SORBENTS
Dr. Gokhan Alptekin, Ms. Margarita Dubovik, Dr. Ambalavanan Jayaraman
U.S. Patent No. 8,308,848
November 13, 2012
NANOPOROUS POLYMER ELECTROLYTE
Dr. Brian Elliott, Mr. Vinh Nguyen
U.S. Patent No. 8,163,204
April 24, 2012
A nanoporous polymer electrolyte and methods for making the polymer electrolyte are disclosed. The polymer electrolyte comprises a crosslinked self-assembly of a polymerizable salt surfactant, wherein the crosslinked self-assembly includes nanopores and wherein the crosslinked self-assembly has a conductivity of at least 1.0×10−6 S/cm at 25° C. The method of making a polymer electrolyte comprises providing a polymerizable salt surfactant. The method further comprises crosslinking the polymerizable salt surfactant to form a nanoporous polymer electrolyte.
PI-CONJUGATED ORGANOBORON POLYMERS IN THIN-FILM ELECTRONIC DEVICES
Dr. Silvia D. Luebben, Dr. Shawn A. Sapp
U.S. Patent No. 8,097,348
January 17, 2012
2010
DERIVATIZATION AND SOLUBILIZATION OF FULLERENES FOR USE IN THERAPEUTIC AND DIAGNOSTIC APPLICATIONS
Dr. Robert D. Bolskar, Dr. J. Michael Alford
U.S. Patent No. 7,812,190
October 12, 2010
METHODS OF MAKING ALKYL ESTERS
Dr. Brian Elliott
U.S. Patent No. 7,767,837
August 3, 2010
METHODS OF PRODUCTION, PURIFICATION, AND PROCESSING OF POLY(HETEROAROMATIC) BLOCK COPOLYMERS WITH IMPROVED SOLUBILITY OR DISPERSABILITY
Dr. Silvia D. Luebben, Dr. Shawn A. Sapp
U.S. Patent No. 7,687,582
March 30, 2010
This invention relates to improved methods for the preparation, purification, and processing of poly(heteroaromatic) block copolymers, as well as compositions prepared by these methods. Methods relate to preparation of multiblock and triblock copolymers of intrinsically conducting polymers (ICPs) containing at least one block of a poly(heteroaromatic) polymer and at least two blocks of a non-conducting polymer. This invention provides polymer solutions or dispersions of improved stability and better film-forming properties. The poly(heteroaromatic) block copolymers are obtained in their conducting or doped form, and are retained in a solvated, wet form throughout the production and purification processes. Stable solutions or dispersions of the purified copolymers in organic solvents, water, or mixtures thereof are provided. Stable solutions or dispersions of ICPs are useful in the preparation of semiconducting and conducting films, blends, and coatings on a variety of substrates using standard processing and coating techniques.
DERIVATIZATION AND SOLUBILIZATION OF INSOLUBLE CLASSES OF FULLERENES
Dr. Robert D. Bolskar, Dr. J. Michael Alford
U.S. Patent No. 7,671,230
March 7, 2010
2009
POROUS CARBONS FROM CARBOHYDRATES
Dr. Steven D. Dietz, Mr. Dean Recla
U.S. Patent No. 7,541,312
June 2, 2009
2008
OXIDATION CATALYSTS COMPRISING METAL EXCHANGED HEXAALUMINATE WHEREIN THE METAL IS SR, PD, LA AND/OR MN
U.S. Patent No. 7,442,669
October 28, 2008
Metal-exchanged hexaaluminate catalysts that exhibit good catalytic activity and/or stability at high temperatures for extended periods with retention of activity as combustion catalysts, and more generally as oxidation catalysts, that make them eminently suitable for use in methane combustion, particularly for use in natural gas fired gas turbines. The hexaaluminate catalysts of this invention are of particular interest for methane combustion processes for minimization of the generation of undesired levels (less than about 10 ppm) of NOx species. Metal exchanged hexaaluminate oxidation catalysts are also useful for oxidation of volatile organic compounds (VOC), particularly hydrocarbons. Metal exchanged hexaaluminate oxidation catalysts are further useful for partial oxidation, particularly at high temperatures, of reduced species, particularly hydrocarbons (alkanes and alkenes).
ELECTRICALLY CONDUCTING MATERIALS FROM BRANCHED END-CAPPING INTERMEDIATES
Dr. Brian J. Elliott, Dr. William W. Ellis, Dr. Silvia D. Luebben, Dr. Shawn A. Sapp, Dr. Chieh-Hui Chang, Ms. Rachelle A. D’Sa
U.S. Patent No. 7,361,728
April 22, 2008
A class of conducting oligomers and polymers and to a method for the preparation of the same. The conducting oligomers and polymers contain an end-capping group, which is non-electrically conductive and contains at least one branch point. The branched end-capping groups are made by a method that first substitutes the branched group on the heteroaromatic monomer, particularly at the “2” position on these monomers. In a second step, the end-capping intermediate is co-polymerized with one or more additional heteroaromatic monomers to form capped conducting oligomers and polymers.
2007
POLY(HETEROAROMATIC) BLOCK COPOLYMERS WITH ELECTRICAL CONDUCTIVITY
Dr. Silvia D. Luebben, Dr. Brian J. Elliott, Ms. Carolina Wilson
U.S. Patent No. 7,279,534
October 9, 2007
BURNERS AND COMBUSTION APPARATUS FOR CARBON NANOMATERIAL PRODUCTION
Dr. J. Michael Alford, Dr. Michael D. Diener, Dr. James Nabity, Mr. Michael Karpuk
U.S. Patent No. 7,279,137
Japanese Patent No. 3984956
October 9, 2007
NANOPARTICLES MODIFIED WITH MULTIPLE ORGANIC ACIDS
Dr. Ronald L. Cook, Dr. Silvia D. Luebben, Dr. Andrew W. Myers, Dr. Bryan M. Smith, Dr. Brian J. Elliott, Mr. Cory Kreutzer, Ms. Carolina Wilson, Mr. Manfred Meiser
U.S. Patent No. 7,244,498
July 17, 2007
PURIFICATION OF ENDOHEDRAL AND OTHER FULLERENES BY CHEMICAL METHODS
Dr. Robert D. Bolskar, Dr. J. Michael Alford
U.S. Patent No. 7,208,132
Japanese Patent 3926331
April 24, 2007
MESOPOROUS CARBONS AND POLYMERS FROM HYDROXYLATED BENZENES
Dr. Steven D. Dietz, Mr. Vinh Nguyen
U.S. Patent No. 7,167,354
January 23, 2007
COMBUSTION PROCESS FOR SYNTHESIS OF CARBON NANOMATERIALS FROM LIQUID HYDROCARBON
Dr. J. Michael Alford, Dr. Michael D. Diener, Dr. James Nabity, Dr. Bradley D. Hitch
U.S. Patent No. 7,157,066
Japanese Patent No. 3926333
January 2, 2007
This invention provides a combustion apparatus for the production of carbon nanomaterials including fullerenes and fullerenic soot. Most generally the combustion apparatus comprises one or more inlets for introducing an oxygen-containing gas and a hydrocarbon fuel gas in the combustion system such that a flame can be established from the mixed gases, a droplet delivery apparatus for introducing droplets of a liquid hydrocarbon feedstock into the flame, and a collector apparatus for collecting condensable products containing carbon nanomaterials that are generated in the combustion system. The combustion system optionally has a reaction zone downstream of the flame. If this reaction zone is present the hydrocarbon feedstock can be introduced into the flame, the reaction zone or both.
2006
POLYNUCLEAR AROMATIC HYDROCARBONS FOR FULLERENE SYNTHESIS IN FLAMES
Dr. J. Michael Alford, Dr. Michael D. Diener
U.S. Patent No. 7,150,863
Chinese Patent No. ZL 02 8 16866.6
Japanese Patent No. 3889399
Russian Patent No. 229950
December 19, 2006
NANOPOROUS COMPOSITES OF POLYMERIZED LYTROPIC LIQUID-CRYSTALLINE MONOMERS, AND HYDROPHOBIC POLYMERS
Dr. Brian Elliott
U.S. Patent No. 7,090,788
August 15, 2006
PROCESS FOR THE SIMULTANEOUS REMOVAL OF SULFUR AND MERCURY
Dr. Girish Srinivas, Dr. Robert J. Copeland
U.S. Patent No. 7,060,233
June 13, 2006
SURFACE MODIFIED PARTICLES BY MULTI-STEP ADDITION AND PROCESS FOR THE PREPARATION THEREOF
Dr. Ronald L. Cook, Dr. Brian Elliott, Dr. Silvia D. Luebben, Dr. Andrew Myers, Dr. Bryan M. Smith
U.S. Patent No. 6,986,943
January 17, 2006
2005
RELEASABLE CORROSION INHIBITOR COMPOSITIONS
Dr. Ronald L. Cook
U.S. Patent No. 6,933,046
August 23, 2005
PROCESS FOR THE REMOVAL OF IMPURITIES FROM COMBUSTION FULLERENES
Dr. J. Michael Alford, Dr. Robert D. Bolskar
U.S. Patent No. 6,923,915
Japanese Patent No. 3984957
August 2, 2005
SURFACE MODIFIED PARTICLES BY MULTI-STEP MICHAEL-TYPE ADDITION AND PROCESS FOR THE PREPARATION THEREOF
Dr. Ronald L. Cook, Dr. Brian J. Elliott, Dr. Silvia D. Luebben, Dr. Andrew Myers, Dr. Bryan M. Smith
U.S. Patent No. 6,887,517
May 3, 2005
FILTER DEVICES AND METHODS FOR CARBON NANOMATERIAL COLLECTION
Dr. J. Michael Alford, Dr. Michael D. Diener
U.S. Patent No. 6,887,291
Japanese Patent No. 3926329
May 3, 2005
2004
MESOPOROUS CARBONS AND POLYMERS
Dr. William L. Bell, Dr. Steven D. Dietz
U.S. Patent No. 6,737,445
May 18, 2004
2003
ISOLATION OF SMALL-BANDGAP FULLERENES AND ENDOHEDRAL METALLOFULLERENES
Dr. Michael D. Diener, Dr. J. Michael Alford
U.S. Patent No. 6,517,799
February 11, 2003
2002
METHODS OF SUPPRESSION OF FILAMENTOUS COKE FORMATION
Dr. David T. Wickham, Mr. Jeffrey Engel, Mr. Michael E. Karpuk
U.S. Patent No. 6,482,311
November 19, 2002
PULSE THERMAL LOOP
Dr. Mark M. Weislogel
U.S. Patent No. 6,435,274
August 20, 2002
METHODS AND MATERIALS FOR FABRICATION OF ALUMOXANE POLYMERS
Dr. Ronald L. Cook, Dr. Andrew R. Barron, Dr. Kevin J. Gleason, Dr. D. Brent MacQueen, Dr. Georgette L. Siparksy, Dr. Yoshihiro Koide, Dr. Cullen T. Vogelson
U.S. Patent No. 6,369,183
April 9, 2002
FULLERENE CONTRAST AGENT FOR MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY
Dr. J. Michael Alford, Dr. Lon J. Wilson
U.S. Patent No. 6,355,225
March 12, 2002
2001
ISOLATION OF SMALL-BANDGAP FULLERENES AND ENDOHEDRAL METALLOFULLERENES
Dr. Michael D. Diener, Dr. J. Michael Alford
U.S. Patent No. 6,303,016
October 16, 2001
MESOPOROUS CARBONS AND POLYMERS
Dr. William L. Bell, Dr. Steven D. Dietz
U.S. Patent No. 6,297,293
October 2, 2001
SELF-HEATING FLEXIBLE PACKAGE
Dr. William L. Bell, Dr. Robert J. Copeland, Dr. Jianhan Yu, Mr. James Dippo
U.S. Patent No. 6,289,889
September 18, 2001
PORTABLE HEAT SOURCE CONTINUATION
Dr. William L. Bell, Dr. Robert J. Copeland, Dr. Jianhan Yu, Mr. James L. Dippo
U.S. Patent No. 6,248,257
European Patent No. A47J36/28, B65D81/34S, C09K5/18
Korean Patent No. 10-05-76185
June 19, 2001
METAL EXCHANGE CARBOXYLATO-ALUMOXANES
Dr. Aivaras Kareiva, Dr. Chuansheng Bai, Dr. Charles J. Harlan, Dr. D. Brent MacQueen, Dr. Andrew R. Barron, Dr. Ronald L. Cook
U.S. Patent No. 6,207,130
March 27, 2001
2000
CATALYSTS FOR THE SELECTIVE OXIDATION OF HYDROGEN SULFIDE TO SULFUR
Dr. Girish Srinivas, Dr. Chuansheng Bai
U.S. Patent No. 6,099,819
August 8, 2000
1999
PORTABLE HEAT SOURCE
Dr. William L. Bell, Dr. Robert J. Copeland, Dr. Jianhan Yu
U.S. Patent No. 5,935,486
August 10, 1999
1993
HIGH TEMPERATURE REGENERABLE HYDROGEN SULFIDE REMOVAL AGENTS
Dr. Robert J. Copeland
U.S. Patent No. 5,271,907
December 21, 1993
1989
ENHANCED PERFORMANCE OF ALCOHOL FUELED ENGINE DURING COLD CONDITIONS
Mr. Michael E. Karpuk, Dr. Scott W. Cowley
U.S. Patent No. 4,876,989
October 31, 1989