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Results 901–925 of 2,457

Injection withdrawal tracer tests to assess proppant placement

Patent • #11,294,349. Placement of proppant in subterranean formations during hydraulic fracturing is assessed. A method of one aspect includes introducing a hydraulic fracturing fluid including a proppant into a subterranean formation through a well. Samples of the hydraulic fracturing fluid are recovered through the well over a period of time. A...

Innovation Marketplace

Page • Innovation Marketplace is an annual magazine that highlights Sandia National Laboratories' exceptional research capabilities and intellectual property Recent Editions (PDF)

Innovative nanopore sequencing technology including a self-assembled porous membrane

Patent • #9,927,397. Methods and apparatus for long read, label-free, optical nanopore long chain molecule sequencing. In general, the present disclosure describes a novel sequencing technology based on the integration of nanochannels to deliver single long-chain molecules with widely spaced (>wavelength), .about.1-nm aperture "tortuous" nanopores that slow translocation sufficiently to provide massively...

Inorganic dual-layer microporous supported membranes

Patent • #6,536,604. The present invention provides for a dual-layer inorganic microporous membrane capable of molecular sieving, and methods for production of the membranes. The inorganic microporous supported membrane includes a porous substrate which supports a first inorganic porous membrane having an average pore size of less than about 25 .ANG. and...

Inorganic ion sorbent method

Patent • #7,244,359. A process and medium for decontamination of water containing anionic species including arsenic and chromium, wherein compounds comprising divalent and trivalent metal oxides and sulfides are used to form surface complexes with contaminants under pH conditions within the range of potable water. In one embodiment natural and synthetic spinels...

Inspection workcell

Patent • #10,955,429. An inspection workcell includes an equipment rack for securing one or more part trays comprising inspection parts, one or more inspection stations for inspecting the inspection parts, and a robotic manipulator for transporting the one or more part trays from the equipment rack to the one or more inspection...

Insulator-based DEP with impedance measurements for analyte detection

Patent • #7,678,256. Disclosed herein are microfluidic devices for assaying at least one analyte specie in a sample comprising at least one analyte concentration area in a microchannel having insulating structures on or in at least one wall of the microchannel which provide a nonuniform electric field in the presence of an...

Integrated boiler, superheater, and decomposer for sulfuric acid decomposition

Patent • #7,645,437. A method and apparatus, constructed of ceramics and other corrosion resistant materials, for decomposing sulfuric acid into sulfur dioxide, oxygen and water using an integrated boiler, superheater, and decomposer unit comprising a bayonet-type, dual-tube, counter-flow heat exchanger with a catalytic insert and a central baffle to increase recuperation efficiency.

Integrated circuit authentication from a die material measurement

Patent • #10,942,215. The various technologies presented herein relate to measuring a signal generated by a die-based test circuit incorporated into an IC and utilizing the measured signal to authenticate the IC. The signal can be based upon a sensor response generated by the test circuit fabricated into the die, wherein the...

Integrated circuit authentication from a die material measurement

Patent • #10,429,438. The various technologies presented herein relate to measuring a signal generated by a die-based test circuit incorporated into an IC, and utilizing the measured signal to authenticate the IC. The signal can be based upon a sensor response generated by the test circuit fabricated into the die, wherein the...

Integrated circuit physically unclonable function

Patent • #10,103,733. An integrated circuit (IC) based physically unclonable function (PUF) that comprises a common source amplifier for generating PUF output voltages, a unity gain, negative feedback operational amplifier for generating bias voltages, a voltage regulator and a bit exclusion circuit that excludes unstable PUF bits. Compensation circuitry built into the...

Integrated field emission array for ion desorption

Patent • #8,536,564. An integrated field emission array for ion desorption includes an electrically conductive substrate; a dielectric layer lying over the electrically conductive substrate comprising a plurality of laterally separated cavities extending through the dielectric layer; a like plurality of conically-shaped emitter tips on posts, each emitter tip/post disposed concentrically within...

Integrated field emission array for ion desorption

Patent • #9,425,019. An integrated field emission array for ion desorption includes an electrically conductive substrate; a dielectric layer lying over the electrically conductive substrate comprising a plurality of laterally separated cavities extending through the dielectric layer; a like plurality of conically-shaped emitter tips on posts, each emitter tip/post disposed concentrically within...

Integrated heterodyne terahertz transceiver

Patent • #8,274,058. A heterodyne terahertz transceiver comprises a quantum cascade laser that is integrated on-chip with a Schottky diode mixer. A terahertz signal can be received by an antenna connected to the mixer, an end facet or sidewall of the laser, or through a separate active section that can amplify the...

Integrated heterodyne terahertz transceiver

Patent • #7,550,734. A heterodyne terahertz transceiver comprises a quantum cascade laser that is integrated on-chip with a Schottky diode mixer. An antenna connected to the Schottky diode receives a terahertz signal. The quantum cascade laser couples terahertz local oscillator power to the Schottky diode to mix with the received terahertz signal...

Integrated optic vector-matrix multiplier

Patent • #8,027,587. A vector-matrix multiplier is disclosed which uses N different wavelengths of light that are modulated with amplitudes representing elements of an N.times.1 vector and combined to form an input wavelength-division multiplexed (WDM) light stream. The input WDM light stream is split into N streamlets from which each wavelength of...

Integrated optical transceiver with electronically controlled optical beamsteering

Patent • #9,740,079. A beam-steering optical transceiver is provided. The transceiver includes one or more modules, each comprising an antenna chip and a control chip bonded to the antenna chip. Each antenna chip has a feeder waveguide, a plurality of row waveguides that tap off from the feeder waveguide, and a plurality...

Integrated resonant micro-optical gyroscope and method of fabrication

Patent • #7,106,448. An integrated optic gyroscope is disclosed which is based on a photonic integrated circuit (PIC) having a bidirectional laser source, a pair of optical waveguide phase modulators and a pair of waveguide photodetectors. The PIC can be connected to a passive ring resonator formed either as a coil of...

Integrated silicon optical amplifier with reduced residual pump

Patent • #11652330. An optical amplifier device employing a Mach-Zehnder Interferometer (MZI) that reduces the amount of residual pump power in the optical output of the amplifier is disclosed. The MZI amplifier employs two geometrically linear optical amplifier arms or two multi-spatial-mode racetrack optical amplifiers to amplify a signal with a pumping...

Integrated transmission electron microscope

Patent • #11,081,314. An integrated transmission electron microscope comprising multiple electron sources for tuned beams of ultrafast, scanning probe, and parallel illumination in varied beam energies can be alternated within sub-microseconds onto a sample with dynamic `transient state` processes to acquire atomic-scale structural/chemical data with site specificity. The various electron sources and...
Results 901–925 of 2,457