Patents Assigned to Sandia Corporation
  • Patent number: 9531322
    Abstract: A PV system composed of sub-arrays, each having a group of PV cells that are electrically connected to each other. A power management circuit for each sub-array has a communications interface and serves to connect or disconnect the sub-array to a programmable power grid. The power grid has bus rows and bus columns. A bus management circuit is positioned at a respective junction of a bus column and a bus row and is programmable through its communication interface to connect or disconnect a power path in the grid. As a result, selected sub-arrays are connected by selected power paths to be in parallel so as to produce a low system voltage, and, alternately in series so as to produce a high system voltage that is greater than the low voltage by at least a factor of ten.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: December 27, 2016
    Assignee: Sandia Corporation
    Inventors: Murat Okandan, Gregory N. Nielson
  • Patent number: 9525398
    Abstract: The present invention relates to a single crystal micromechanical resonator. In particular, the resonator includes a lithium niobate or lithium tantalate suspended plate. Also provided are improved microfabrication methods of making resonators, which does not rely on complicated wafer bonding, layer fracturing, and mechanical polishing steps. Rather, the methods allow the resonator and its components to be formed from a single crystal.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: December 20, 2016
    Assignee: Sandia Corporation
    Inventors: Roy H. Olsson, Thomas A. Friedmann, Sara Jensen Homeijer, Michael Wiwi, Khalid Mikhiel Hattar, Blythe Clark, Todd Bauer, Stuart B. Van Deusen
  • Patent number: 9517937
    Abstract: Metal chalcogenide monolayer nanomaterials can be synthesized from metal alkoxide precursors by solution precipitation or solvothermal processing. The synthesis routes are more scalable, less complex and easier to implement than other synthesis routes.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: December 13, 2016
    Assignee: Sandia Corporation
    Inventors: Bernadette A. Hernandez-Sanchez, Timothy J. Boyle
  • Patent number: 9518406
    Abstract: An electromechanical latch is described herein. The electromechanical latch is a dual-actuator latch, wherein a first actuator and a second actuator are driven with precise timing to move a first latch part relative to a second latch part, and vice versa. When the electromechanical latch is in a closed position, the first rotary latch part is positioned to prevent rotation of the second rotary latch part in a first direction. To transition the electromechanical latch from the closed position to an open position, the first actuator drives the first rotary latch part such that the second rotary latch part is able to rotate in the first direction. Thereafter, the second actuator drives the second rotary latch part in the first direction until the electromechanical latch is in the open position.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: December 13, 2016
    Assignee: Sandia Corporation
    Inventors: Stephen Buerger, Lisa C. Marron, Michael A. Martinez, Barry Louis Spletzer
  • Patent number: 9518449
    Abstract: A method of recovering a liquid hydrocarbon using an injectate includes recovering the liquid hydrocarbon through primary extraction. Physico-chemical data representative of electrostatic interactions between the liquid hydrocarbon and the reservoir rock are measured. At least one additive of the injectate is selected based on the physico-chemical data. The method includes recovering the liquid hydrocarbon from the reservoir rock through secondary extraction using the injectate.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: December 13, 2016
    Assignee: Sandia Corporation
    Inventors: Patrick V. Brady, James L. Krumhansl
  • Patent number: 9518219
    Abstract: A method for the hydrothermal synthesis of bismuth germanium oxide comprises dissolving a bismuth precursor (e.g., bismuth nitrate pentahydrate) and a germanium precursor (e.g., germanium dioxide) in water and heating the aqueous solution to an elevated reaction temperature for a length of time sufficient to produce the eulytite phase of bismuth germanium oxide (E-BGO) with high yield. The E-BGO produced can be used as a scintillator material. For example, the air stability and radioluminescence response suggest that the E-BGO can be employed for medical applications.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 13, 2016
    Assignee: Sandia Corporation
    Inventor: Timothy J. Boyle
  • Patent number: 9515340
    Abstract: An apparatus of an aspect includes a fuel cell catalyst layer. The fuel cell catalyst layer is operable to catalyze a reaction involving a fuel reactant. A fuel cell gas diffusion layer is coupled with the fuel cell catalyst layer. The fuel cell gas diffusion layer includes a porous electrically conductive material. The porous electrically conductive material is operable to allow the fuel reactant to transfer through the fuel cell gas diffusion layer to reach the fuel cell catalyst layer. The porous electrically conductive material is also operable to conduct electrons associated with the reaction through the fuel cell gas diffusion layer. An electrically conductive polymer material is coupled with the fuel cell gas diffusion layer. The electrically conductive polymer material is operable to limit transfer of the fuel reactant to the fuel cell catalyst layer.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: December 6, 2016
    Assignee: Sandia Corporation
    Inventors: Ronald J. Stanis, Timothy N. Lambert
  • Patent number: 9514326
    Abstract: The various technologies presented herein relate to analyzing a plurality of shares stored at a plurality of repositories to determine whether a secret from which the shares were formed matches a term in a query. A threshold number of shares are formed with a generating polynomial operating on the secret. A process of serially interpolating the threshold number of shares can be conducted whereby a contribution of a first share is determined, a contribution of a second share is determined while seeded with the contribution of the first share, etc. A value of a final share in the threshold number of shares can be determined and compared with the search term. In the event of the value of the final share and the search term matching, the search term matches the secret in the file from which the shares are formed.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: December 6, 2016
    Assignee: Sandia Corporation
    Inventors: Thomas M. Kroeger, Thomas R. Benson
  • Patent number: 9513554
    Abstract: A microporous carbon scaffold is produced by lithographically patterning a carbon-containing photoresist, followed by pyrolysis of the developed resist structure. Prior to exposure, the photoresist is loaded with a nanoparticulate material. After pyrolysis, the nanonparticulate material is dispersed in, and intimately mixed with, the carbonaceous material of the scaffold, thereby yielding a carbon composite structure.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: December 6, 2016
    Assignee: Sandia Corporation
    Inventors: David Bruce Burckel, Cody M. Washburn, Timothy N. Lambert, Patrick Sean Finnegan, David R. Wheeler
  • Patent number: 9514864
    Abstract: A flexible solid-state resistor comprises a string of ceramic resistors that can be used to charge the capacitors of a linear transformer driver (LTD) used in a pulsed power machine. The solid-state resistor is able to absorb the energy of a switch prefire, thereby limiting LTD cavity damage, yet has a sufficiently low RC charge time to allow the capacitor to be recharged without disrupting the operation of the pulsed power machine.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: December 6, 2016
    Assignee: Sandia Corporation
    Inventors: Brian Stoltzfus, Mark E. Savage, Brian Thomas Hutsel, William E. Fowler, Keven Alan MacRunnels, David Justus, William A. Stygar
  • Patent number: 9512421
    Abstract: The present invention relates to an acoustic lysis system including a disposable cartridge that can be reversibly coupled to a platform having a small, high-frequency piezoelectric transducer array. In particular, the system releases viable DNA, RNA, and proteins from human or bacterial cells, without chemicals or additional processing, to enable high-speed sample preparation for clinical point-of-care medical diagnostics and use with nano/microfluidic cartridges. Also described herein are methods of making and using the system of the invention.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: December 6, 2016
    Assignee: Sandia Corporation
    Inventors: Darren W. Branch, Erika Cooley Vreeland, Gennifer Tanabe Smith
  • Patent number: 9508881
    Abstract: A microsystems-enabled multi-junction photovoltaic (MEM-PV) cell includes a first photovoltaic cell having a first junction, the first photovoltaic cell including a first semiconductor material employed to form the first junction, the first semiconductor material having a first bandgap. The MEM-PV cell also includes a second photovoltaic cell comprising a second junction. The second photovoltaic cell comprises a second semiconductor material employed to form the second junction, the second semiconductor material having a second bandgap that is less than the first bandgap, the second photovoltaic cell further comprising a first contact layer disposed between the first junction of the first photovoltaic cell and the second junction of the second photovoltaic cell, the first contact layer composed of a third semiconductor material having a third bandgap, the third bandgap being greater than or equal to the first bandgap.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: November 29, 2016
    Assignee: Sandia Corporation
    Inventors: Anna Tauke-Pedretti, Jeffrey Cederberg, Gregory N. Nielson, Murat Okandan, Jose Luis Cruz-Campa
  • Patent number: 9501738
    Abstract: A cellular computational platform is disclosed that includes a multiplicity of functionally identical, repeating computational hardware units that are interconnected electrically and optically. Each computational hardware unit includes a reprogrammable local memory and has interconnections to other such units that have reconfigurable weights. Each computational hardware unit is configured to transmit signals into the network for broadcast in a protocol-less manner to other such units in the network, and to respond to protocol-less broadcast messages that it receives from the network. Each computational hardware unit is further configured to reprogram the local memory in response to incoming electrical and/or optical signals.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: November 22, 2016
    Assignee: Sandia Corporation
    Inventor: Murat Okandan
  • Patent number: 9500579
    Abstract: Examples are described including assay platforms having tooth elements. An impinging element may sequentially engage tooth elements on the assay platform to sequentially align corresponding detection regions with a detection unit. In this manner, multiple measurements may be made of detection regions on the assay platform without necessarily requiring the starting and stopping of a motor.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: November 22, 2016
    Assignee: Sandia Corporation
    Inventors: Gregory Jon Sommer, Ulrich Y. Schaff
  • Patent number: 9500930
    Abstract: Various technologies pertaining to an on-chip entangled photon source are described herein. A light source is used to pump two resonator cavities that are resonant at two different respective wavelengths and two different respective polarizations. The resonator cavities are coupled to a four-wave mixing cavity that receives the light at the two wavelengths and outputs polarization-entangled photons.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 22, 2016
    Assignee: Sandia Corporation
    Inventors: Daniel B. S. Soh, Scott E. Bisson
  • Patent number: 9501664
    Abstract: Techniques and mechanisms to detect and compensate for drift by a physically uncloneable function (PUF) circuit. In an embodiment, first state information is registered as reference information to be made available for subsequent evaluation of whether drift by PUF circuitry has occurred. The first state information is associated with a first error correction strength. The first state information is generated based on a first PUF value output by the PUF circuitry. In another embodiment, second state information is determined based on a second PUF value that is output by the PUF circuitry. An evaluation of whether drift has occurred is performed based on the first state information and the second state information, the evaluation including determining whether a threshold error correction strength is exceeded concurrent with a magnitude of error being less than the first error correction strength.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: November 22, 2016
    Assignee: Sandia Corporation
    Inventor: Jason Hamlet
  • Patent number: 9499699
    Abstract: The present invention relates to solar absorptive coatings including a ceramic material. In particular, the coatings of the invention are laser-treated to further enhance the solar absorptivity of the material. Methods of making and using such materials are also described.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: November 22, 2016
    Assignee: Sandia Corporation
    Inventors: Aaron C. Hall, David P. Adams
  • Patent number: 9494787
    Abstract: A direct view telescopic sight includes objective lens, eyepiece, and prism erector assemblies. The objective lens assembly is mounted to receive light of an image from an object direction and direct the light along an optical path. The eyepiece assembly is mounted to receive the light along the optical path and to emit the light of the image along an eye-ward direction. The prism erector assembly is positioned between the objective lens and eyepiece assemblies and includes first and second prism elements through which the optical path passes. The first and second prism elements invert the image. A reticle element is disposed on or adjacent to a surface of one of the first or second prism elements to combine a reticle on the image. The image is brought into focus at only a single focal plane between the objective lens and eyepiece assemblies at a given time.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: November 15, 2016
    Assignee: Sandia Corporation
    Inventor: Brett Bagwell
  • Patent number: 9496448
    Abstract: Photovoltaic cells and photovoltaic modules, as well as methods of making and using such photovoltaic cells and photovoltaic modules, are disclosed. More particularly, embodiments of the photovoltaic cells selectively reflect visible light to provide the photovoltaic cells with a colorized appearance. Photovoltaic modules combining colorized photovoltaic cells may be used to harvest solar energy while providing a customized appearance, e.g., an image or pattern.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: November 15, 2016
    Assignee: Sandia Corporation
    Inventors: Jose Luis Cruz-Campa, Gregory N. Nielson, Murat Okandan, Anthony L. Lentine, Paul J. Resnick, Vipin P. Gupta
  • Patent number: 9488854
    Abstract: An optical phase shifter includes an optical waveguide, a plurality of partial phase shifting elements arranged sequentially, and control circuitry electrically coupled to the partial phase shifting elements. The control circuitry is adapted to provide an activating signal to each of the N partial phase shifting elements such that the signal is delayed by a clock cycle between adjacent partial phase shifting elements in the sequence. The transit time for a guided optical pulse train between the input edges of consecutive partial phase shifting elements in the sequence is arranged to be equal to a clock cycle, thereby enabling pipelined processing of the optical pulses.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 8, 2016
    Assignee: Sandia Corporation
    Inventor: William A. Zortman