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| Number | Title | Issue Date |
| 7781111 | Hydrogen storage and generation system A system for storing and generating hydrogen generally and, in particular, a system for storing and generating hydrogen for use in an H2/O2 fuel cell. The hydrogen storage system uses the beta particles from a beta particle emitting material to... | 08/24/2010 |
| 7488407 | Castable three-dimensional stationary phase for electric field-driven applications A polymer material useful as the porous dielectric medium for microfluidic devices generally and electrokinetic pumps in particular. The polymer material is produced from an inverse (water-in-oil) emulsion that creates a 3-dimensional network characterized by small ... | 02/10/2009 |
| 7485277 | Method for absorbing hydrogen using an oxidation resisant organic hydrogen getter A composition for removing hydrogen from an atmosphere, comprising a mixture of a polyphenyl ether and a hydrogenation catalyst, preferably a precious metal catalyst, and most preferably platinum, is disclosed. This composition is stable in the presence of oxygen, w... | 02/03/2009 |
| 7449579 | Detection of electrophilic and nucleophilic chemical agents A “real time” method for detecting electrophilic and nucleophilic species generally by employing tunable, precursor sensor materials that mimic the physiological interaction of these agents to form highly florescent berberine-type alkaloids that can be easily an... | 11/11/2008 |
| 7422701 | Oxidation resistant organic hydrogen getters A composition for removing hydrogen from an atmosphere, comprising a mixture of a polyphenyl ether and a hydrogenation catalyst, preferably a precious metal catalyst, and most preferably Pt. This composition is stable in the presence of oxygen, will not polymerize o... | 09/09/2008 |
| 7358221 | Metathesis depolymerizable surfactants A class of surfactant molecules whose structure includes regularly spaced unsaturation in the tail group and thus, can be readily decomposed by ring-closing metathesis, and particularly by the action of a transition metal catalyst, to form small molecule products. T... | 04/15/2008 |
| 7297246 | Electrokinetic pump A method for altering the surface properties of a particle bed. In application, the method pertains particularly to an electrokinetic pump configuration where nanoparticles are bonded to the surface of the stationary phase to alter the surface properties of the stat... | 11/20/2007 |
| 7225683 | Composition pulse time-of-flight mass flow sensor A device for measuring fluid flow rates over a wide range of flow rates (10 μL/min) and at pressures at least as great as 2,000 psi. The invention is particularly adapted for use in microfluidic systems. The device operates by producing compositional ... | 06/05/2007 |
| 7213473 | Sample preparation system for microfluidic applications An apparatus that couples automated injection with flow feedback to provide nanoliter accuracy in controlling microliter volumes. The apparatus comprises generally a source of hydraulic fluid pressure, a fluid isolator joined to the outlet of the hydraulic pressure ... | 05/08/2007 |
| 7186987 | Organic materials and devices for detecting ionizing radiation A π-conjugated organic material for detecting ionizing radiation, and particularly for detecting low energy fission neutrons. The π-conjugated materials comprise a class of organic materials whose members are intrinsic semiconducting materials. Included in this cl... | 03/06/2007 |
| 7162864 | Method for control of NOx emission from combustors using fuel dilution A method of controlling NOx emission from combustors. The method involves the controlled addition of a diluent such as nitrogen or water vapor, to a base fuel to reduce the flame temperature, thereby reducing NOx production. At the same time, a gas capable of enhanc... | 01/16/2007 |
| 7128046 | Fuel mixture stratification as a method for improving homogeneous charge compression ignition engine operation A method for slowing the heat-release rate in homogeneous charge compression ignition (“HCCI”) engines that allows operation without excessive knock at higher engine loads than are possible with conventional HCCI. This method comprises injecting a fuel charge in... | 10/31/2006 |
| 7128559 | Programmable imprint lithography template A template for imprint lithography (IL) that reduces significantly template production costs by allowing the same template to be re-used for several technology generations. The template is composed of an array of spaced-apart moveable and individually addressable ro... | 10/31/2006 |
| 7094326 | Electrodes for microfluidic applications An electrode device for high pressure applications. These electrodes, designed to withstand pressure of greater than 10,000 psi, are adapted for use in microfluidic devices that employ electrokinetic or electrophoretic flow. The electrode is composed, generally, of ... | 08/22/2006 |
| 7052608 | Cast-to-shape electrokinetic trapping medium A three-dimensional microporous polymer network material, or monolith, cast-to-shape in a microchannel. The polymer monolith, produced by a phase separation process, is capable of trapping and retaining charged protein species from a mixture of charged and uncharged... | 05/30/2006 |
| 7022381 | Method for producing high dielectric strength microvalves A microvalve having a cast-in-place and lithographically shaped mobile, polymer monolith for fluid flow control in microfluidic devices and method of manufacture. The microvalve contains a porous fluorinated polymer monolithic element whose pores are filled with an ... | 04/04/2006 |
| 6998598 | Modular optical detector system A modular optical detector system. The detector system is designed to detect the presence of molecules or molecular species by inducing fluorescence with exciting radiation and detecting the emitted fluorescence. Because the system is capable of accurately detecting... | 02/14/2006 |
| 6994826 | Method and apparatus for controlling cross contamination of microfluid channels A method for controlling fluid flow at junctions in microchannel systems. Control of fluid flow is accomplished generally by providing increased resistance to electric-field and pressure-driven flow in the form of regions of reduced effective cross-sectional area wi... | 02/07/2006 |
| 6989629 | Method and apparatus for debris mitigation for an electrical discharge source Method and apparatus for mitigating the transport of debris generated and dispersed from electric discharge sources by thermophoretic and electrostatic deposition. A member is positioned adjacent the front electrode of an electric discharge source and used to establ... | 01/24/2006 |
| 6988402 | Mobile monolithic polymer elements for flow control in microfluidic devices A cast-in-place and lithographically shaped mobile, monolithic polymer element for fluid flow control in microfluidic devices and method of manufacture. Microfluid flow control devices, or microvalves that provide for control of fluid or ionic current flow can be ma... | 01/24/2006 |
| 6969576 | Photosensitive dissolution inhibitors and resists based on onium salt carboxylates A photoresist composition that employs onium salt carboxylates as thermally stable dissolution inhibitors. The photoresist composition can be either an onium carboxylate salt with a phenolic photoresist, such as novolac, or an onium cation protected carboxylate-cont... | 11/29/2005 |
| 6960285 | Electrokinetically pumped high pressure sprays An electrokinetic pump capable of producing high pressure is combined with a nozzle having a submicron orifice to provide a high pressure spray device. Because of its small size, the device can be contained within medical devices such as an endoscope for delivering ... | 11/01/2005 |
| 6952962 | Mobile monolithic polymer elements for flow control in microfluidic devices A cast-in-place and lithographically shaped mobile, monolithic polymer element for fluid flow control in microfluidic devices and method of manufacture. Microfluid flow control devices, or microvalves that provide for control of fluid or ionic current flow can be ma... | 10/11/2005 |
| 6921630 | Photoresist substrate having robust adhesion A substrate material for LIGA applications w hose general composition is Ti/Cu/Ti/SiO2. The SiO2 is preferably applied to the Ti/Cu/Ti wafer as a sputtered coating, typically about 100 nm thick. This substrate composition provides improved adhe... | 07/26/2005 |
| 6888297 | Method and apparatus for debris mitigation for an electrical discharge source Method and apparatus for mitigating the transport of debris generated and dispersed from electric discharge sources by thermophoretic and electrostatic deposition. A member is positioned adjacent the front electrode of an electric discharge source and used to establ... | 05/03/2005 |
| 6865939 | Fluorinated silica microchannel surfaces A method for surface modification of microchannels and capillaries. The method produces a chemically inert surface having a lowered surface free energy and improved frictional properties by attaching a fluorinated alkane group to the surface. The coating is produced... | 03/15/2005 |
| 6846399 | Castable three-dimensional stationary phase for electric field-driven applications A polymer material useful as the porous dielectric medium for microfluidic devices generally and electrokinetic pumps in particular. The polymer material is produced from an inverse (water-in-oil) emulsion that creates a 3-dimensional network characterized by small ... | 01/25/2005 |
| 6833068 | Passive injection control for microfluidic systems Apparatus for eliminating siphoning, “dead” regions, and fluid concentration gradients in microscale analytical devices. In its most basic embodiment, the present invention affords passive injection control for both electric field-driven and pressure-driven syst... | 12/21/2004 |
| 6782746 | Mobile monolithic polymer elements for flow control in microfluidic devices A cast-in-place and lithographically shaped mobile, monolithic polymer element for fluid flow control in microfluidic devices and method of manufacture. Microfluid flow control devices, or microvalves that provide for control of fluid or ionic current flow can be ma... | 08/31/2004 |
| 6770201 | Cast-to-shape electrokinetic trapping medium A three-dimensional microporous polymer network material, or monolith, cast-to-shape in a microchannel. The polymer monolith, produced by a phase separation process, is capable of trapping and retaining charged protein species from a mixture of charged and uncharged... | 08/03/2004 |
| 6770183 | Electrokinetic pump An electrokinetic pump in which the porous dielectric medium of conventional electrokinetic pumps is replaced by a patterned microstructure. The patterned microstructure is fabricated by lithographic patterning and etching of a substrate and is formed by features ar... | 08/03/2004 |
| 6727504 | Boron nitride solid state neutron detector The present invention describes an apparatus useful for detecting neutrons, and particularly for detecting thermal neutrons, while remaining insensitive to gamma radiation. Neutrons are detected by direct measurement of current pulses produced by an interaction of t... | 04/27/2004 |
| 6675660 | Composition pulse time-of-flight mass flow sensor A device for measuring fluid flow rates over a wide range of flow rates (10 μL/min) and at pressures at least as great as 10,000 psi. The invention is particularly adapted for use in microfluidic systems. The device operates by producing co... | 01/13/2004 |
| 6673525 | Thin layer imaging process for microlithography using radiation at strongly attenuated wavelengths A method for patterning of resist surfaces which is particularly advantageous for systems having low photon flux and highly energetic, strongly attenuated radiation. A thin imaging layer is created with uniform silicon distribution in a bilayer format. An... | 01/06/2004 |
| 6572749 | Electrokinetic high pressure hydraulic system An electrokinetic high pressure hydraulic pump for manipulating fluids in capillary-based system. The pump uses electro-osmotic flow to provide a high pressure hydraulic system, having no moving mechanical parts, for pumping and/or compressing fluids, for... | 06/03/2003 |
| 6533952 | Mitigation of radiation induced surface contamination A process for mitigating or eliminating contamination and/or degradation of surfaces having common, adventitious atmospheric contaminants adsorbed thereon and exposed to radiation. A gas or a mixture of gases is introduced into the environment of a surfac... | 03/18/2003 |
| 6532802 | Flowmeter for pressure-driven chromatography systems A flowmeter for accurately measuring the flowrate of fluids in high pressure chromatography systems. The flowmeter is a porous bed of a material, the porous bed having a porosity in the range of about 0.1 to 0.6 and a pore size in the range of about 50 nm... | 03/18/2003 |
| 6495015 | Electrokinetically pumped high pressure sprays An electrokinetic pump capable of producing high pressure is combined with a nozzle having a submicron orifice to provide a high pressure spray device. Because of its small size, the device can be contained within medical devices such as an endoscope for ... | 12/17/2002 |
| 6472443 | Porous polymer media Highly crosslinked monolithic porous polymer materials for chromatographic applications. By using solvent compositions that provide not only for polymerization of acrylate monomers in such a fashion that a porous polymer network is formed prior to phase s... | 10/29/2002 |
| 6460420 | Flowmeter for pressure-driven chromatography systems A flowmeter for accurately measuring the flowrate of fluids in high pressure chromatography systems. The flowmeter is a porous bed of a material, the porous bed having a porosity in the range of about 0.1 to 0.6 and a pore size in the range of about 50 nm... | 10/08/2002 |
