National Renewable Energy Laboratory

Technology Transfer

All NREL Technologies Available for Licensing

The National Renewable Energy Laboratory is the leader in developing renewable energy and energy efficiency technologies. A number of NREL's technologies have been patented and are available for licensing.

Advanced Vehicle and Fuels

U.S. Patent 5,157,893 - Compact Vacuum Insulation
U.S. Patent 5,175,975 - Compact Vacuum Insulation
U.S. Patent 5,107,649 - Compact Vacuum Insulation Embodiments
U.S. Patent 5,643,485 - Cooking Utensil with Improved Heat Retention
U.S. Patent 5,318,108 - Gas-Controlled Dynamic Vacuum Insulation with Gas Gate
U.S. Patent 5,338,254 - Increasing Jet Entrainment, Mixing and Spreading
U.S. Patent 7,190,581 - Low Thermal Resistance Power Module Assembly
U.S. Patent 5,562,154 - Material-Controlled Dynamic Vacuum Insulation
U.S. Patent 5,477,676 - Method and apparatus for thermal management of vehicle exhaust systems
U.S. Patent 6,964,294 - Passive Cooling System for a Vehicle
U.S. Patent 5,433,056 - Radiation-Controlled Dynamic Vacuum Insulation
U.S. Patent 6,203,764 - Vacuum-insulated Catalytic Converter
U.S. Patent 6,186,886 - Vehicle Cabin Cooling System for Capturing and Exhausting Heated Boundary Layer Air from Inner Surfaces of Solar Heated Windows
Trademark 2,727,068 - Word Mark ADVISOR � 2002 Software

Basic Sciences

U.S. Patent 6,805,999 - Buried anode lithium thin film battery and process.
U.S. Patent 6,830,778 - Direct printing of thin-film conductors using metal-chelate inks
U.S. Patent 6,441,942 - Electrochromic Projection and Writing Device
U.S. Patent 5,377,037 - Electrochromic-Photovoltaic Film for Light-Sensitive Control of Optical Transmittance
U.S. Patent 5,708,735 - Fiber Optic Device for Sensing the Presence of Gas
U.S. Patent 5,198,263 - High Rate Chemical Vapor Deposition of Carbon Films Using Fluorinated Gases
U.S. Patent 6,277,589 - Method and Apparatus for Rapid Biohydrogen Phenotypic Screening of Microorganisms Using a Chemochromic Sensor
U.S. Patent 5,807,533 - Method for Charging a Hydrogen Getter
U.S. Patent 6,420,071 - Method for Improving the Durability of Ion Insertion Materials
U.S. Patent 6,103,942 - Method of High-Purity Silane Preparation
U.S. Patent 5,202,150 - Microwave Impregnation of Porous Materials with Thermal Energy Storage Materials
U.S. Patent 5,223,634 - Molecular Water-Oxidation Catalyst
U.S. Patent 6,723,566 - PD/NI-WO3 Anodic Double Layer Gasochromic Device
U.S. Patent 5,250,427 - Photoconversion of Gasified Organic Materials Into Biologically Degradable Plastics
U.S. Patent 4,919,813 - Photoenhanced Anaerobic Digestion of Organic Acids
U.S. Patent 6,156,395 - Plasma Enhanced Chemical Vapor Depositions (PECVD) Method of Forming Vanadium Oxide Films and Vanadium Oxide Thin-Films Prepared Thereby
U.S. Patent 5,789,348 - Preparation of Superconductor Precursor Powders
U.S. Patent 5,871,952 - Process for Selection of Oxygen-tolerant Algal Mutants that Produce H.sub.2
U.S. Patent 5,840,443 - Redox Polymer Electrodes for Advanced Batteries
U.S. Patent 6,369,934 - Self Bleaching Photoelectrochemical-Electrochromic Device
U.S. Patent 5,346,729 - Solar-Induced Chemical Vapor Deposition of Diamond-Type Carbon Films
U.S. Patent 5,716,736 - Solid Lithium-Ion Electrolyte
U.S. Patent 5,384,653 - Stand-Alone Photovoltaic (PV) Powered Electrochromic Window
U.S. Patent 6,448,068 - System for Rapid Biohydrogen Phenotypic Screening of Microorganisms Using a Chemochromic Sensor
U.S. Patent 5,834,137 - Thin Film Method of Conductin Lithium-Ions
U.S. Patent 5,489,321 - Welding/Sealing Glass Enclosed Space in a Vacuum

Biomass

U.S. Patent 6,509,184 - Alkaline Tolerant Dextranase From Streptomyces Anulatus
U.S. Patent 6,228,177 - Aqueous Fractionation of Biomass Based on Novel Carbohydrate Hydrolysis Kinetics
U.S. Patent 5,514,584 - Cloning of Cellulas Genes from Acidothermus cellulolyticus
U.S. Patent 5,321,174 - Controlled Catalystic and Thermal Sequential Pyrolysis and Hydrolysis of Polycarbonate and Plastic Waste to Recover Monomers
U.S. Patent 5,359,099 - Controlled Catalytic and Thermal Sequential Pyrolysis and Hydrolysis of Mixed Polymer Waste Stream to Sequentially Recover Monomers or Other High Value Products
U.S. Patent 5,216,149 - Controlled Catalytic and Thermal Sequential Pyrolysis and Hydrolysis of Mixed Polymer Waste Streams to Sequentially Recover Monomers or Other High Value Products
U.S. Patent 5,300,704 - Controlled Catalytic and Thermal Sequential Pyrolysis and Hydrolysis of Mixed Polymer Waste Streams to Sequentially Recover Monomers or Other High Value Products
U.S. Patent 5,136,111 - Controlled Catalytic and Thermal Sequential Pyrolysis and Hydrolysis of Phenolic Resin Containing Waste Streams to Sequentially Recover Monomers and Chemicals
U.S. Patent 5,359,061 - Controlled Catalytic and Thermal Sequential Pyrolysis and Hydrolysis of Polymer Waste Comprising Nylon 6 and a Poyolefin or Mixtures of Polyolefins to Sequentially Recover Monomers or Other High Value Products
U.S. Patent 6,423,145 - Dilute Acid/Metal Salt Hydrolysis of Lignocellulosics
U.S. Patent 6,660,506 - Ethanol Production with Dilute Acid Hydrolysis Using Partially Dried Lignocellulosics
U.S. Patent 6,013,860 - Expression of Enzymes Involved in Cellulose Modification
U.S. Patent 5,536,655 - Gene Coding for the E1 Endoglucanase
U.S. Patent 5,559,220 - Gene Encoding Acetyl-Coenzyme A Carboxylase
U.S. Patent 6,022,419 - Hydrolysis and Fractionation of Lignocellulosic Biomass
U.S. Patent 5,928,932 - Isolated Gene Encoding an Enzyme with UDP-Glucose Pyrophosphorylase and Phosphoglucomutase Activities from Cyclotella Cryptica
U.S. Patent 5,432,276 - Isolation of Levoglucosan from Lignocellulosic Pyrolysis Oil Derived from Wood or Waste Newsprint
U.S. Patent 5,371,212 - Isolation of Levoglucosan from Pyrolysis Oil Derived from Cellulose
U.S. Patent 5,432,075 - Low Molecular Weight Thermostable .Beta.-D-Glucosidase from Acidothermus Cellulolyticus
U.S. Patent 5,712,142 - Method for Increasing Thermostability in Cellulase Enzymes
U.S. Patent 6,606,568 - Method for Predicting Dry Mechanical Properties from Wet Wood and Standing Trees
U.S. Patent 6,593,572 - Method of Predicting Mechanical Properties of Decayed Wood
U.S. Patent 5,730,837 - Method of Separating Lignocellulosic Material into Lignin, Cellulose and Dissolved Sugars
U.S. Patent 5,712,133 - Pentose Fermentation by Recombinant Zymomonas
U.S. Patent 6,498,029 - Pentose Fermentation of Normally Toxic Lignocellulose Prehydrolysate with Strain of Pichia Stipitis Yeast Using Air
U.S. Patent 6,719,908 - Phenol Removal Pretreatment Process
U.S. Patent 5,250,427 - Photoconversion of Gasified Organic Materials Into Biologically Degradable Plastics
U.S. Patent 5,705,369 - Prehydrolysis of Lignocellulose
U.S. Patent 5,424,417 - Prehydrolysis of Lignocellulose
U.S. Patent 5,503,996 - Prehydrolysis of Lignocellulose
U.S. Patent 6,193,837 - Preparation of Brightness Stabilization Agent for Lignin Containing Pulp from Biomass Pyrolysis Oils
U.S. Patent 5,785,852 - Pretreatment of High Solid Microbial Sludges
U.S. Patent 5,380,445 - Pretreatment of Microbial Sludges
U.S. Patent 4,942,269 - Process for Fractionating Fast-Pyrolysis Oils, and Products Derived Therefrom
U.S. Patent 5,091,499 - Process for Preparing Phenolic Formaldehyde Resole Resin Products Derived from Fractionated Fast-pyrolysis Oils
U.S. Patent 5,807,952 - Process for Producing Phenolic Compounds from Lignins
U.S. Patent 5,871,952 - Process for Selection of Oxygen-tolerant Algal Mutants that Produce H.sub.2
U.S. Patent 6,737,258 - Process for the Conversion of and Aqueous Biomass Hydrolyzate into Fuels or Chemicals by the Selective Removal of fermentation Inhibitors
U.S. Patent 4,615,742 - Progressing Batch Hydrolysis Process
U.S. Patent 5,919,927 - Purification of Caprolactam from Recycled Nylon
U.S. Patent 5,821,553 - Pyrolysis and Hydrolysis of Mixed Polymer Waste Comprising Polyethyleneterephthalate and Polyethylene to Sequentially Recover
U.S. Patent 5,386,070 - Pyrolysis of Polystyrene - Polyphenylene Oxide to Recover Styrene and Useful Products
U.S. Patent 5,798,237 - Recombinant Lactobacillus for Fermentation of Xylose to Lactic Acid and Lactate
U.S. Patent 6,566,107 - Recombinant Zymomonas Mobilis with Improved Xylose Utilization
U.S. Patent 5,726,053 - Recombinant Zymomonas for Pentose Fermentation
U.S. Patent 5,514,583 - Recombinant Zymomonas for Pentose Fermentation
U.S. Patent 5,464,602 - Sequential Pyrolysis of Plastic to Recover Polystyrene HCL and Terephthalic Acid
U.S. Patent 5,843,760 - Single Zymomonas Mobilis Strain for Xylose and Arabinose Fermentation
U.S. Patent 7,354,755 - Stable zymomonas mobilis xylose and arabinose fermenting strains
U.S. Patent 5,868,997 - Sterilization of Fermentation Vessels by Ethanol/Water Mixtures
U.S. Patent 4,964,995 - Supercritical Separation Process for Complex Organic Mixtures
U.S. Patent 6,583,317 - Synthesis of Acid Addition Salt of Delta-Aminolevulinic Acid from 5-Bromo Levulinic Acid Esters
U.S. Patent 5,907,058 - Synthesis of an Acid Addition Salt of Delta-Aminolevulinic Acid from 5-Bromo Levulinic Acid Esters
U.S. Patent 7,059,993 - Thermal Tolerant Cellulase from Acidothermus Cellulolyticus
U.S. Patent 5,366,884 - Thermostable Purified Endoglucanase II from Acidothermus Cellulolyticus ATTC
U.S. Patent 5,275,944 - Thermostable Purified Endoglucanases from Thermophilic Bacterium Acidothermus Cellulyticius
U.S. Patent 5,110,735 - Thermostable Purified Endoglucanases from Thermophilic Bacterium Acidothermus Cellulyticius
U.S. Patent 6,525,319 - Use of a Region of the Visible and Near Infrared Spectrum to Predict Mechanical Properties of Wet Wood and Standing Trees
U.S. Patent 7,223,575 - Zymomonas Pentose-Sugar Fermenting Strains and Uses Thereof

Buildings

U.S. Patent 6,584,784 - Combined Refrigeration System with a Liquid Pre-Cooling Heat Exchanger
U.S. Patent 6,739,136 - Combustion System for Hybrid Solar Fossil Fuel Receiver
U.S. Patent 5,107,649 - Compact Vacuum Insulation Embodiments
U.S. Patent 6,830,778 - Direct printing of thin-film conductors using metal-chelate inks
U.S. Patent 6,487,859 - Dish/Stirling Hybrid-Receiver
U.S. Patent 6,441,942 - Electrochromic Projection and Writing Device
U.S. Patent 5,599,229 - Enhancement of Wall Jet Transport Properties
U.S. Patent 6,378,605 - Heat Exchanger with Transpired, Highly Porous Fins
U.S. Patent 5,417,052 - Hybrid Solar Central Receiver for Combined Cycle Power Plant
U.S. Patent 6,282,497 - Method and Apparatus for Analyzing the Chemical Composition of Liquid Effluent from a Direct Contact Condenser
U.S. Patent 5,925,291 - Method and Apparatus for High-Efficiency Direct Contact Condensation
U.S. Patent 5,153,780 - Method and Apparatus for Uniformly Concentrating Solar Flux for Photovoltaic Applications
U.S. Patent 5,661,670 - Method and System for Simulating Heat and Mass Transfer in CoolingTowers
U.S. Patent 6,225,551 - Multi-Facet Concentrator of Solar Setup for Irradiating the Objects Placed in a Target Plane with Solar Light
U.S. Patent 6,169,246 - Photovoltaic Devices Comprising Zinc Stannate Buffer Layer and Method for Making
U.S. Patent 6,077,401 - Production of Fullerenes Using Concentrated Solar Flux
U.S. Patent 6,185,944 - Refrigeration System with a Compressor-Pump Unit and a Liquid-Injection Desuperheating Line
U.S. Patent 5,716,736 - Solid Lithium-Ion Electrolyte
U.S. Patent 5,384,653 - Stand-Alone Photovoltaic (PV) Powered Electrochromic Window
U.S. Patent 6,073,500 - Ultra-Accelerated Natural Sunlight Exposure Testing
U.S. Patent 6,604,436 - Ultra-Accelerated Natural Sunlight Exposure Testing Facilities
U.S. Patent 5,692,491 - Unglazed Transpired Solar Collector Having a Low Thermal Conductance Absorber
U.S. Patent 6,183,241 - Uniform -Burning Matrix Burner
U.S. Patent 7,306,650 - Using liquid desiccant as a regenerable filter for capturing and deactivating contaminants

Geothermal

U.S. Patent 5,925,291 - Method and Apparatus for High-Efficiency Direct Contact Condensation

Hydrogen and Fuel Cells

U.S. Patent 7,229,785 - Fluorescence technique for on-line monitoring of state of hydrogen-producing microorganisms
U.S. Patent 7,233,034 - Hydrogen Permeable Protective Coating for a Catalytic Surface
U.S. Patent 6,989,252 - Hydrogen Producting Using Hydrogenase-Containing Oxygenic Photosynthetic Organisms
U.S. Patent 7,233,034 - Hydrogen permeable protective coating for a catalytic surface
U.S. Patent 7,160,530 - Metal-doped single-walled carbon nanotubes and production thereof
U.S. Patent 6,277,589 - Method and Apparatus for Rapid Biohydrogen Phenotypic Screening of Microorganisms Using a Chemochromic Sensor
U.S. Patent 7,306,951 - Method and apparatus for determining diffusible hydrogen concentrations
U.S. Patent 5,871,952 - Process for Selection of Oxygen-tolerant Algal Mutants that Produce H.sub.2
U.S. Patent 6,448,068 - System for Rapid Biohydrogen Phenotypic Screening of Microorganisms Using a Chemochromic Sensor

Solar

U.S. Patent 5,747,967 - Apparatus and Method for Maximizing Power Delivered by a Photovoltaic Array
U.S. Patent 6,275,060 - Apparatus and Method for Measuring Minority Carrier Lifetimes in Semiconductor Materials
U.S. Patent 5,396,332 - Apparatus and Method for Measuring the Thickness of a Semiconductor Wafer
U.S. Patent 5,929,652 - Apparatus for Measuring Minority Carrier Lifetimes in Semiconductor Materials
U.S. Patent 5,217,285 - Apparatus for Synthesis of a Solar Spectrum
U.S. Patent 5,639,520 - Application of Optical Processing for Growth of Silicon Dioxide
U.S. Patent 4,779,980 - Atmospheric Optical Calibration System (AOCS)
U.S. Patent 5,304,509 - Back-side Hydrogenation Technique for Defect Passivation in Silicon Solar Cells
U.S. Patent 5,948,176 - Cadmium-Free Junction Fabrication Process for CuInSe2 Thin Film Solar Cells
U.S. Patent 6,093,757 - Composition and Method for Encapsulating Photovoltaic Devices
U.S. Patent 5,223,453 - Controlled Metal-Semiconductor Sintering/Alloying by One-directional Reverse Illumination
U.S. Patent 5,544,616 - Crystallization from High Temperture Solutions of Si in Cu/Al Solvent
U.S. Patent 5,314,571 - Crystallization from High-Temperature Solutions of Si in Copper
U.S. Patent 4,667,059 - Current- and Lattice-Matched Tandem Solar Cell
U.S. Patent 5,223,043 - Current-Matched High-Efficiency, Multijunction Monolithic Solar Cells
U.S. Patent 5,406,367 - Defect Mapping System
U.S. Patent 5,397,737 - Deposition of Device Quality Low H Content, Amorphous Silicon Films
U.S. Patent 5,776,819 - Deposition of Device Quality, Low Hydrogen Content, Amorphous Silicon Films by Hot Filament Technique Using (SAFE) Silicon Source Gas
U.S. Patent 6,468,885 - Deposition of Device Quality, Low Hydrogen Content, Hydrogenated Amorphous Silicon at High Deposition Rates
U.S. Patent 6,124,186 - Deposition of Device Quality, Low Hydrogen Content, Hydrogenated Amorphous Silicon at High Deposition Rates with Increased Stability Using the Hot Wire Filament Technique
U.S. Patent 5,358,574 - Dry Texturing of Solar Cells
U.S. Patent 6,989,924 - Durable Corrosion and Ultraviolet-Resistant Silver Mirror
U.S. Patent 5,361,172 - Durable Metallized Polymer Mirror
U.S. Patent 6,239,354 - Electrical Isolation of Component Cells in Monolithically Interconnected Modules
U.S. Patent 6,332,967 - Electro-deposition of Superconductor Oxide Films
U.S. Patent 6,859,297 - Electrochromic Counter Electrode
U.S. Patent 6,441,942 - Electrochromic Projection and Writing Device
U.S. Patent 5,377,037 - Electrochromic-Photovoltaic Film for Light-Sensitive Control of Optical Transmittance
U.S. Patent 5,356,839 - Enhanced Quality Thin Film Cu(In,Ga)Se.sub.2 for Semiconductor Device Applications by Vapor-Phase Recrystallization
U.S. Patent 5,429,985 - Fabrication of Optically Reflecting Ohmic Contacts for Semiconductor Devices
U.S. Patent 5,342,453 - Heterojunction Solar Cell
U.S. Patent 5,316,593 - Heterojunction Solar Cell with Passivated Emitter Surface
U.S. Patent 6,908,782 - High Carrier Concentration P-Type Transparent Conducting Oxide Films
U.S. Patent 5,897,331 - High Efficiency Low Cost Thin Film Silicon Solar Cell Design and Method For Making
U.S. Patent 6,201,261 - High Efficiency, Low Cost, Thin Film Silicon Solar Cell Design and Method For Making
U.S. Patent 5,426,061 - Impurity Gettering in Semiconductors
U.S. Patent 5,897,715 - Interdigitalized Photovoltaic Power Conversion Device
U.S. Patent 6,281,035 - Ion-Beam Treatment to Prepare Surfaces of p-CdTe Films
U.S. Patent 6,815,736 - Isoelectronic Co-doping
U.S. Patent 6,300,557 - Low-Band Gap Double-Heterostructure InAsP/GaInAs Photovoltaic Converters
U.S. Patent 6,852,371 - Metal processing for impurity gettering in silicon
U.S. Patent 4,942,299 - Method and Apparatus for Differential Spectroscopic Atomic Imaging Using Scanning Tunneling Microscopy
U.S. Patent 7,122,736 - Method and Apparatus for Fabricating a Thin-Film Solar Cell Utilizing a Hot Wire Chemical Vapor Deposition Technique
U.S. Patent 5,304,534 - Method and Apparatus for Forming High-Critical-Temperatures Superconducting Layers on Flat and/or Elongated Substrates
U.S. Patent 6,441,896 - Method and Apparatus for Measuring Spatial Uniformity of Radiation
U.S. Patent 5,426,569 - Method and Apparatus for Simulating Atmospheric Absorption of Solar Energy Due to Water Vapor and CO.sub.2
U.S. Patent 7,300,890 - Method and apparatus for forming conformal SiN.sub.x films
U.S. Patent 6,713,400 - Method for Improving the Stability of Amorphous Silicon
U.S. Patent 5,047,112 - Method for Preparing Homogeneous Single Crystal Ternary III-V Alloys
U.S. Patent 5,627,081 - Method for Processing Silicon Solar Cells
U.S. Patent 5,441,897 - Method of Fabricating High-Efficiency Cu(In, Ga)Se.sub.2 Thin Films for Solar Cells
U.S. Patent 6,787,385 - Method of Preparing Nitrogen Containing Semiconductor Material
U.S. Patent 5,487,792 - Molecular Assemblies as Protective Barriers and Adhesion Promotion Interlayer
U.S. Patent 5,391,896 - Monolithic Multi-Color Light Emission/Detection Device
U.S. Patent 5,322,572 - Monolithic Tandem Solar Cell
U.S. Patent 5,019,177 - Monolithic Tandem Solar Cells
U.S. Patent 6,281,426 - Multi-Junction, Monolithic Solar Cell Using Low-Band-Gap Materials Lattice-Matched to GaAs or Ge
Trademark 7,309,832 - Multi-junction solar cell device
U.S. Patent 7,229,498 - Nanostructures Produced by Phase-Separation during Growth of (III-V).sub.1-x(IV.sub.2).sub.x Alloys
U.S. Patent 7,179,665 - Optical Method for Determining the Doping Depth Profile in Silicon
U.S. Patent 5,577,157 - Optical Processing Furnace with Quartz Muffle and Diffuser Plate
U.S. Patent 5,452,396 - Optical Processing Furnace with Quartz Muffle and Diffuser Plate
U.S. Patent 6,275,295 - Optical System for Determining Physical Characteristics of a Solar Cell
U.S. Patent 6,436,305 - Passivating Etchants for Metallic Particles
U.S. Patent 5,922,142 - Photovoltaic Devices Comprising Cadmium Stannate Transparent Conducting Films and Method for Making
U.S. Patent 6,169,246 - Photovoltaic Devices Comprising Zinc Stannate Buffer Layer and Method for Making
U.S. Patent 6,458,254 - Plasma and Reactive Ion Etchning to Prepare OHMIC Contacts
U.S. Patent 5,976,614 - Preparation of CuInSe.sub.2 Precursors Films and Powders by Electroless Deposition
U.S. Patent 5,785,837 - Preparation of Transparent Conductors, Ferroelectric Memory Materials and Ferrites
U.S. Patent 5,711,803 - Preparation of a Semiconductor Thin Film
U.S. Patent 6,137,048 - Process for Fabricating Polycrystalline Semiconductor Thin-Film Solar Cells, and Cells Produced Thereby
U.S. Patent 6,281,098 - Process for Polycrystalline Film Silicon Growth
U.S. Patent 5,541,118 - Process for Producing Cadmium Sulfide on a Cadmium Telluride Surface
U.S. Patent 6,518,086 - Processing Approach Towards The Formation Of Thin-Film CU(IN,GA)SE2
U.S. Patent 5,731,031 - Production of Films and Powders for Semiconductor Device Applications
U.S. Patent 6,369,603 - Radio Frequency Coupling Apparatus and Method for Measuring Minority Carrier Lifetimes in Semiconductor Materials
U.S. Patent 6,251,183 - Rapid Low-Temperature Epitaxial Growth Using a Hot-Element Assisted Chemical Vapor Deposition Process
U.S. Patent 7,329,554 - Reactive Codoping of GaAlInP Compound Semiconductors
U.S. Patent 5,436,204 - Recrystallization Method to Selenization of Thin-Film Cu(In,Ga)Se.sub.2 for Semiconductor Device Applications
U.S. Patent 6,984,263 - Shallow Melt Apparatus for Semicontinuous Czochralski Crystal Growth
U.S. Patent 5,376,185 - Single-Junction Solar Cells with the Optium Band Gap for Terrestrial Concentrator Applications
U.S. Patent 6,872,378 - Solar Thermal Aerosol Flow Reaction Process
U.S. Patent 7,033,570 - Solar-Thermal Fluid-Wall Reaction Processing
U.S. Patent 6,126,740 - Solution Synthesis of Mixed-Metal Chalcogenide Nanoparticles and Spray Deposition of Precursor Films
U.S. Patent 7,067,850 - Stacked Switchable Element and Diode Combination
U.S. Patent 5,384,653 - Stand-Alone Photovoltaic (PV) Powered Electrochromic Window
U.S. Patent 4,963,949 - Substrate Structures for InP-Based Devices
U.S. Patent 5,401,331 - Substrate for Thin Silicon Solar Cells
U.S. Patent 5,785,769 - Substrate for Thin Silicon Solar Cells
U.S. Patent 5,581,346 - System for Characterizing Semiconductor Materials and Photovoltaic Device
U.S. Patent 5,757,474 - System for Charactrizing Semiconductor Materials and Photovoltaic Devices Through Calibration
U.S. Patent 5,588,995 - System for Monitoring the Growth of Crystalline Films on Stationary Substrates
U.S. Patent 6,221,495 - Thin Transparent Conducting Films of Cadmium Stannate
U.S. Patent 7,053,294 - Thin-Film Solar Cell Fabricated on a Flexible Metallic Substrate
U.S. Patent 7,109,818 - Tunable Circuit for Tunable Capacitor Devices
U.S. Patent 5,166,761 - Tunnel-Junction Multiple Wavelength Light-Emitting Diodes
U.S. Patent 5,747,099 - Two Chamber Reaction Furnace
U.S. Patent 6,820,509 - Ultra-Accelerated Natural Sunlight Exposure Testing Facilities
U.S. Patent 5,909,632 - Use of Separate ZnTe Interface Layers to Form OHMIC Contacts to p-CdTe Films
U.S. Patent 5,712,187 - Variable Temperature Semiconductor Film Deposition
U.S. Patent 5,882,412 - Vertical Two Chamber Reaction Furnace
U.S. Patent 7,095,050 - Voltage-Matched, Monolithic, Multi-Band-Gap Devices
U.S. Patent 7,095,050 - Voltage-Matched, Monolithic, Multi-Band-Gap Devices
U.S. Patent 7,238,912 - Wafer Characteristics via Reflectometry and Wafer Processing Apparatus and Method
U.S. Patent 7,179,677 - ZnO/Cu(InGa)Se, Solar Cells Prepared by Vapor Phase Zn Doping

Wind

U.S. Patent 5,562,420 - Airfoils for Wind Turbine
U.S. Patent 6,068,446 - Airfoils for Wind Turbine
U.S. Patent 6,899,524 - Cooling-tower Fan Airfoils
U.S. Patent 5,417,548 - Root Region Airfoil for Wind Turbine
U.S. Patent 5,798,632 - Variable Speed Wind Turbine Generator with Zero Sequence Filter
U.S. Patent 6,900,998 - Variable-Speed Wind Power System with Improved Energy Capture via Multilevel Conversion

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