公开(公告)号：US11111586B2

公开(公告)日：2021-09-07

申请号：US15439585

申请日：2017-02-22

Applicant: South Dakota Board of Regents

Inventor： Alevtina Smirnova ,  Michael McGraw ,  Praveen Kolla

IPC: C25B3/00 ,  H01M4/90 ,  H01M4/60 ,  C08G61/12 ,  H01L51/00 ,  H01G11/48 ,  H01G11/86 ,  H01G9/028 ,  C25B11/055 ,  C08L65/00

Abstract: The present invention relates to a one-step process for preparation of “in-situ” or “ex-situ” self-organized and electrically conducting polymer nanocomposites using thermally initiated polymerization of a halogenated 3,4-ethylenedioxythiophene monomer or its derivatives. This approach does not require additional polymerization initiators or catalysts, produce gaseous products that are naturally removed without affecting the polymer matrix, and do not leave by-product contaminants. It is demonstrated that self-polymerization of halogenated 3,4-ethylenedioxythiophene monomer is not affected by the presence of a solid-state phase in the form of nanoparticles and results in formation of 3,4-polyethylenedioxythiophene (PEDOT) nanocomposites.

公开(公告)号：US20210255144A1

公开(公告)日：2021-08-19

申请号：US17246093

申请日：2021-04-30

Applicant: South Dakota Board of Regents

Inventor： Lowell Kolb ,  Charles Tolle ,  Nathan Williams ,  Jason Ash

IPC: G01N29/036 ,  G01N29/24 ,  G01N29/024

Abstract: A system for determining gas characteristics at high altitudes in embodiments of the present invention may have one or more of the following features: (a) a high-altitude balloon having one or more of the following features: (a) a balloon, (b) a balloonsat operably coupled to the balloon, (c) an air path chamber wherein gas at a high altitude can occupy the air path chamber, (d) a first speaker located on a substrate within the air path chamber, wherein the first speaker takes an electrical signal input and creates a first sound wave, and (e) a second speaker located on the substrate facing opposite of the first speaker located outside of the air path chamber, wherein the second speaker takes the electrical signal and creates a second sound wave.

公开(公告)号：US11053124B2

公开(公告)日：2021-07-06

申请号：US16381798

申请日：2019-04-11

Applicant: South Dakota Board of Regents

Inventor： Haiping Hong ,  Christian A. Widener ,  Gregory Lee Christensen

IPC: C01B32/174 ,  C09K5/10 ,  H01B1/24 ,  B82Y30/00 ,  H01B1/04

Abstract: Disclosed herein is a conductive grease composition that includes a functionalized carbon nanomaterial and/or boron nanomaterial and a base oil. The nanomaterial and base oil forms hydrogen bond network in the disclosed composition. Because of the formed hydrogen bonds, the disclosed grease exhibits enhanced thermal or electrical conductivity. Also disclosed is a method to improve thermal or electrical conductivity of an existing grease composition.

公开(公告)号：US11013832B2

公开(公告)日：2021-05-25

申请号：US16002671

申请日：2018-06-07

Applicant: South Dakota Board of Regents ,  SANFORD HEALTH

Inventor： Gopinath Mani ,  Sujan Lamichhane ,  Jordan Anderson ,  Tyler Remund ,  Patrick W. Kelly

IPC: A61L29/08 ,  A61M25/10 ,  A61L29/16 ,  A61L31/10

Abstract: The present invention provides formulations comprising polymers and therapeutics and methods for their manufacture. The present invention also provides medical devices coated with such formulations and methods for their manufacture. The drug-loaded polymer formulations, solutions, and films tailor the drug release characteristics for medical devices.

公开(公告)号：US10781582B2

公开(公告)日：2020-09-22

申请号：US16131863

申请日：2018-09-14

Applicant: South Dakota Board of Regents

Inventor： Mostafa Tazarv ,  Abdullah Boudaqa

IPC: E04B1/21 ,  E04H9/02 ,  E04B5/04

Abstract: The disclosed apparatus, systems and methods relate to reinforced concrete moment-resisting buildings with precast beams, precast columns, and replaceable buckling restrained reinforcements. Modular channels and pins or boxes are provided that allow for the replacement and repair of the precast moment-resisting beams and columns. Replaceable buckling restrained reinforcements are used to attach the beams and columns via embedded reinforcements and couplers.

公开(公告)号：US10671823B2

公开(公告)日：2020-06-02

申请号：US16459941

申请日：2019-07-02

Applicant: South Dakota Board of Regents

Inventor： David Langerman ,  Jon Kellar ,  William Cross ,  P. Stanley May ,  Julian Brackins ,  Jeevan Meruga ,  Aravind Baride ,  John Rapp

IPC: G06K7/10 ,  C09D11/50 ,  C09D11/037 ,  G01N21/00 ,  G07D7/00 ,  G07D7/005 ,  G07D7/0043 ,  G07D7/1205 ,  B42D25/29 ,  B42D25/382 ,  C09D11/03 ,  C09K11/77 ,  G06K7/14 ,  G01N21/64 ,  H01L23/00

Abstract: An improved system and method for reading an upconversion response from nanoparticle inks is provided. A is adapted to direct a near-infrared excitation wavelength at a readable indicia, resulting in a near-infrared emission wavelength created by the upconverting nanoparticle inks. A short pass filter may filter the near-infrared excitation wavelength. A camera is in operable communication with the short pass filter and receives the near-infrared emission wavelength of the readable indicia. The system may further include an integrated circuit adapted to receive the near-infrared emission wavelength from the camera and generate a corresponding signal. A readable application may be in operable communication with the integrated circuit. The readable application receives the corresponding signal, manipulates the signal, decodes the signal into an output, and displays and/or stores the output.

公开(公告)号：US20200025747A1

公开(公告)日：2020-01-23

申请号：US16518489

申请日：2019-07-22

Applicant: South Dakota Board of Regents

Inventor： Grant A. Crawford ,  George G. Wicks ,  Forest Thompson

IPC: G01N33/52 ,  A61K9/00 ,  A61K9/50

Abstract: An event detection composite in embodiments of the present invention may have one or more of the following features: (a) a plurality of solid and/or hollow and/or porous-wall microspheres, (b) a functional material disposed on or within the plurality of microspheres, wherein the functional material can have unique optical, electrical, magnetic, thermal, or chemical properties, where these properties can be realized upon the plurality of microspheres being exposed to a physical, optical, electrical, magnetic, thermal or chemical stimuli, and (c) a host matrix containing the plurality of microspheres.

公开(公告)号：US20200005004A1

公开(公告)日：2020-01-02

申请号：US16459941

申请日：2019-07-02

Applicant: South Dakota Board of Regents

Inventor： David Langerman ,  Jon Kellar ,  William Cross ,  P. Stanley May ,  Julian Brackins ,  Jeevan Meruga ,  Aravind Baride ,  John Rapp

IPC: G06K7/10 ,  B42D25/29 ,  B42D25/382 ,  C09D11/03 ,  C09D11/037 ,  C09D11/50 ,  C09K11/77 ,  G01N21/00 ,  G06K7/14 ,  G07D7/00

Abstract: An improved system and method for reading an upconversion response from nanoparticle inks is provided. A is adapted to direct a near-infrared excitation wavelength at a readable indicia, resulting in a near-infrared emission wavelength created by the upconverting nanoparticle inks. A short pass filter may filter the near-infrared excitation wavelength. A camera is in operable communication with the short pass filter and receives the near-infrared emission wavelength of the readable indicia. The system may further include an integrated circuit adapted to receive the near-infrared emission wavelength from the camera and generate a corresponding signal. A readable application may be in operable communication with the integrated circuit. The readable application receives the corresponding signal, manipulates the signal, decodes the signal into an output, and displays and/or stores the output.

公开(公告)号：US20190381525A1

公开(公告)日：2019-12-19

申请号：US16556676

申请日：2019-08-30

Applicant: South Dakota Board of Regents

Inventor： Christian Widener ,  Victor Champagne ,  Matthew Trexler ,  Dennis Helfritch ,  Rob Hrabe

IPC: B05B7/16

Abstract: Cold spray devices and systems are disclosed. They include a flowpath having an inlet adapted for receiving communication with two or more inputs and an outlet adapted to discharge the two or more inputs. A discharge nozzle may be included in the flowpath of the outlet and a confluence may be included in the flowpath at the inlet for combining the two or more inputs. A nozzle body houses the discharge nozzle separate and downstream from the confluence of the two inputs.

公开(公告)号：US20190300723A1

公开(公告)日：2019-10-03

申请号：US16440674

申请日：2019-06-13

Applicant: South Dakota Board of Regents

Inventor： Venkata K.K. Upadhyayula ,  Venkataramana Gadhamshetty ,  Govindarajan Chilkoor ,  Mats Tysklind

IPC: C09D5/08 ,  C09D167/08 ,  C09D163/00 ,  C09D133/02 ,  C09D163/04 ,  C09D7/20

Abstract: The present invention relates to a coating composition for application on metal substrates intended for contact with biofuel, which composition includes graphene and/or graphene oxide, and a polymer. The present invention further relates to the manufacture of the composition, a method of providing the application onto substrates and the use of the composition within biofuel areas.