Patent • #US10544058B1. The present invention relates to glass composites, including filled glass composites and uses thereof. In particular examples, the composites provide improved thermal expansion characteristics. Also described are methods of forming such composites, such as by adding a particle filler to a glass mixture.
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High throughput chemical munitions treatment system
Patent • #US8047978B1. A new High-Throughput Explosive Destruction System is disclosed. The new system is comprised of two side-by-side detonation containment vessels each comprising first and second halves that feed into a single agent treatment vessel. Both detonation containment vessels further comprise a surrounding ventilation facility. Moreover, the detonation containment vessels are...
High Throughput Friction and Wear Tester
Featured Opportunity • There is a need for high volume material testing/qualification, but industry and researchers are currently limited by commercially available testing devices. Most wear testers can only handle one sample at a time and are often expensive. Sandia’s High Throughput Friction and Wear Tester enables testing on up to 16 samples...
High throughput tribometer
Patent • #US12038416B2. The present invention relates, in part, to systems for characterizing force (e.g., friction, and wear). In one embodiment, a tribometer allows for wear testing of samples in a high throughput manner. A counterface is used to apply force on the surface of the sample. A carousel provides for the...
High voltage discharge units and methods for discharging high voltages
Patent • #US12418189B1. A system or method for discharging an energy source is disclosed. The system includes a circuit that provides a controlled discharge path through a relayed shunt-resistor network. A positive terminal and a negative terminal are provided for connecting the circuit to an external voltage source. A meter measures an...
High voltage gallium nitride vertical PN diode
Patent • #US12218255B2. A vertical gallium nitride (GaN) PN diode uses epitaxial growth of a thick drift region with a very low carrier concentration and a carefully designed multi-zone junction termination extension to achieve high voltage blocking and high-power efficiency. An exemplary large area (1 mm2) diode had a forward pulsed current...
High voltage switch with cascaded transistor topology
Patent • #US11728804B1. A switching apparatus includes three or more series-connected transistors, and it further includes a balancing network. The balancing network includes a resistor network configured to divide a voltage from a voltage source across the series-connected transistors. The resistor network includes at least two resistive legs connected in parallel. In...
High ZT bismuth-doped perovskite thermoelectrics
Patent • #US9269880B2. A bismuth-doped perovskite thermoelectric, comprising (Bix, La0.1-x)SrTiO3, wherein x is between 0.01 and 0.1, can have a high figure-of-merit, ZT.
High-frequency shear-horizontal surface acoustic wave sensor
Patent • #US8669688B1. A Love wave sensor uses a single-phase unidirectional interdigital transducer (IDT) on a piezoelectric substrate for leaky surface acoustic wave generation. The IDT design minimizes propagation losses, bulk wave interferences, provides a highly linear phase response, and eliminates the need for impedance matching. As an example, a high frequency...
High-frequency shear-horizontal surface acoustic wave sensor
Patent • #US8436509B1. A Love wave sensor uses a single-phase unidirectional interdigital transducer (IDT) on a piezoelectric substrate for leaky surface acoustic wave generation. The IDT design minimizes propagation losses, bulk wave interferences, provides a highly linear phase response, and eliminates the need for impedance matching. As an example, a high frequency...
High-pressure hydrogen test fixture
Patent • #US12638358B1. A high-pressure hydrogen test fixture includes a main body having a test cavity, a flange covering the test cavity when attached to the main body to thereby form a test chamber, a plurality of flange bolts and corresponding nuts to attach the flange to the main body, a flange...
High-temperature brushless DC motor controller
Patent • #US9654035B1. A motor control system for deployment in high temperature environments includes a controller; a first half-bridge circuit that includes a first high-side switching element and a first low-side switching element; a second half-bridge circuit that includes a second high-side switching element and a second low-side switching element; and a...
High-temperature, adhesive-based microvalves and uses thereof
Patent • #US9995411B1. The present invention relates to adhesive-based microvalves, as well as assemblies and cartridges having such microvalves. In particular examples, substantially planar layers of adhesive materials are used to construct both normally-open and normally-closed microvalves for fluid control within microfluidic laminate cartridges. Such microvalves and cartridges can be useful for...
High-voltage, high-current, solid-state closing switch
Patent • #US9742394B2. A high-voltage, high-current, solid-state closing switch uses a field-effect transistor (e.g., a MOSFET) to trigger a high-voltage stack of thyristors. The switch can have a high hold-off voltage, high current carrying capacity, and high time-rate-of-change of current, di/dt. The fast closing switch can be used in pulsed power applications.
High-yield entangled single photon source
Patent • #US9465274B1. The various technologies presented herein relate to utilizing photons at respective idler and signal frequencies to facilitate generation of photons at a pump frequency. A strong pump field can be applied at the ωi and the ωs frequencies, with the generated idler and signal pulses being utilized to generate...
High-yield synthesis of brookite TiO2 nanoparticles
Patent • #US7943116B1. A method for forming non-agglomerated brookite TiO2 nanoparticles without the use of expensive organic surfactants or high temperature processing. Embodiments of this invention use titanium isopropoxide as the titanium precursor and isopropanol as both the solvent and ligand for ligand-stabilized brookite-phase titania. Isopropanol molecules serve as the ligands interacting...
Highly aligned vertical GaN nanowires using submonolayer metal catalysts
Patent • #US7745315B1. A method for forming vertically oriented, crystallographically aligned nanowires (nanocolumns) using monolayer or submonolayer quantities of metal atoms to form uniformly sized metal islands that serve as catalysts for MOCVD growth of Group III nitride nanowires.
Highly Conductive, High Resolution Printed Electrical Traces and Components
Featured Opportunity • A two-step additive manufacturing approach for forming highly conductive, high-resolution electrical traces and components with properties suited for flexible and hybrid electronics Electrical traces and conductive components are essential features of electronic devices, power electronics, and printed circuit boards. Specific characteristics such as trace width and thickness can greatly influence...
Highly directional thermal emitter
Patent • #US8987754B1. A highly directional thermal emitter device comprises a two-dimensional periodic array of heavily doped semiconductor structures on a surface of a substrate. The array provides a highly directional thermal emission at a peak wavelength between 3 and 15 microns when the array is heated. For example, highly doped silicon...
Homography generation for image registration in inlier-poor domains
Patent • #US11557019B1. A method for efficient image registration between two images in the presence of inlier-poor domains includes receiving a set of candidate correspondences between the two images. An approximate homography between the two images is generated based upon a first correspondence in the correspondences. The set of candidate correspondences is...
Horizontally Polarized Dual-band GPS Antenna
Featured Opportunity • A mechanically robust, horizontally polarized dual-band GPS antenna with improved performance in cluttered signal environments Antennas are ubiquitous in devices and systems used by consumers, industry, and government. Often, these systems employ multiple antennas which can result in undesired interference that reduces the effectiveness of sensitive GPS systems. A need...
Hybrid CMOS-MEMS devices adapted for high-temperature operation and method for their manufacture
Patent • #US10214415B1. A silicon carbide based MOS integrated circuit is monolithically integrated with a suspended piezoelectric aluminum nitride member to form a high-temperature-capable hybrid MEMS-over-MOS structure. In the integrated structure, a post-MOS passivation layer of silicon carbide is deposited over the MOS passivation and overlain by a structural layer of the...
Hybrid inertial navigation system and method
Patent • #US12038285B1. A hybrid inertial navigation system and method are provided. The system includes a conventional inertial measurement unit (with a three-axis accelerometer and a three-axis gyroscope operating at a high data rate and low sensitivity), light pulse atom interferometer accelerometer and gyroscope (operating at a low data rate and high...
Hybrid membrane—PSA system for separating oxygen from air
Patent • #US7875101B2. A portable, non-cryogenic, oxygen generation system capable of delivering oxygen gas at purities greater than 98% and flow rates of 15 L/min or more is described. The system consists of two major components. The first component is a high efficiency membrane capable of separating argon and a portion of...
Hybrid metal organic scintillator materials system and particle detector
Patent • #US7985868B1. We describe the preparation and characterization of two zinc hybrid luminescent structures based on the flexible and emissive linker molecule, trans-(4-R,4′-R′) stilbene, where R and R′ are mono- or poly-coordinating groups, which retain their luminescence within these solid materials. For example, reaction of trans-4,4′-stilbenedicarboxylic acid and zinc nitrate in...
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