Patents Assigned to The University of North Dakota
  • Patent number: 11913090
    Abstract: A method for extracting rare earth elements and critical minerals including adding an acid to a mixture comprising organically bound rare earth elements. The mixture is maintained at a pH of 0.25 to 4 for a period of time, resulting in a liquor and a leached mixture. The liquor is removed from the leached mixture to form a dewatered cake. The dewatered cake is washed to form a washing liquid. The washing liquid is recycled to create a second slurry comprising organically bound rare earth elements.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: February 27, 2024
    Assignee: University of North Dakota
    Inventors: Nolan Theaker, Daniel Laudal
  • Patent number: 11828657
    Abstract: The present subject matter provides various technical solutions to technical problems facing automated solutions in building energy audit applications. These solutions leverage heat loss quantification to improve a building's thermal performance and improve or optimize its energy usage. The technical solutions described herein provide various advantages. These solutions include application of deep-learning methods to segment large thermal imagery data sets from a drone. The technical solutions described herein provide improved building thermal efficiency determination using multiple stages of computations to quantify the heat loss for a building envelope.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: November 28, 2023
    Assignee: University of North Dakota
    Inventor: Prakash Ranganathan
  • Patent number: 11718782
    Abstract: A compound for use in oil recovery includes a quantum dot and a zwitterionic surfactant. The quantum dot has a diameter no greater than 25 nm and the quantum dot is bonded to the zwitterionic surfactant. A nanofluid for use in oil recovery includes the compound described above and a fluid carrier. A method for recovering oil from a formation includes flooding the formation with a nanofluid. The nanofluid has a quantum dot diameter no greater than 25 nm bonded to a zwitterionic surfactant and a fluid carrier.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: August 8, 2023
    Assignee: University of North Dakota
    Inventors: Yanxia Zhou, Xu Wu, Julia Xiaojun Zhao, Hui Pu
  • Patent number: 11500109
    Abstract: A computer architecture for geolocation spoofing/meaconing detection is disclosed. According to some aspects, a computer accesses an incoming geolocation positioning signal. The computer determines, using a signal characteristics calculation subsystem, geolocation positioning signal characteristics for the incoming geolocation positioning signal. The computer provides, using a geolocation positioning spoofing/meaconing detection subsystem, the geolocation positioning signal characteristics as an input vector to a neural network, wherein the neural network determines whether the incoming geolocation positioning signal is legitimate or fake. If the incoming geolocation positioning signal is determined to be fake: the computer computes, using a Bayesian inference subsystem, a likelihood and a severity of a geolocation positioning technology based attack. The computer provides, as a digital transmission, an indication of whether the incoming geolocation positioning signal is legitimate or fake.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: November 15, 2022
    Assignees: Raytheon Company, University of North Dakota
    Inventors: Naima Kaabouch, Mohsen Riahi Manesh, Jonathan R. Kenney
  • Patent number: 11453635
    Abstract: A method of making cyclobutane-1,2-diacid building blocks includes using trans-cinnamic acid in its beta form (head to head packing) and photodimerizing the trans-cinnamic acid to create cis-cyclobutane-1,2-dicarboxylic acid (CBDA-4).
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: September 27, 2022
    Assignee: University of North Dakota
    Inventors: Qianli Chu, Zhihan Wang
  • Patent number: 11452764
    Abstract: Methods and compositions are described herein that inhibit FAK/ATK interactions. Such methods and compositions are useful for inhibiting cell adhesion and cancer metastasis.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: September 27, 2022
    Assignees: University of North Dakota, Board of Trustees of Michigan State University
    Inventors: Marc D. Basson, Leslie A. Kuhn, Sebastian Raschka
  • Patent number: 11326054
    Abstract: A polymer includes a plurality of repeated polymerized units according to scheme (2):
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: May 10, 2022
    Assignee: The University of North Dakota
    Inventors: Qianli Chu, Rahul Shahni
  • Patent number: 11303160
    Abstract: Apparatus and associated methods relate to providing wireless power transfer and wireless communications between two electronic components, each having an inductive coil and a microwave antenna centered about a common central axis, thereby ensuring alignment with one another. Wireless power transfer can be performed using electromagnetic coupling between the inductive coils and/or the microwave antennae of the two electronic components. In some embodiments, the two electronic components are an implantable biomedical device and an external interface system for the implantable biomedical device. Power-receive and power-transmit controllers control operation of power transmission by the external interface system and power reception by the implantable biomedical device, respectively. In some embodiments, the microwave antenna has a resonance frequency that is configured by location of an electrical connection to a ground plane.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: April 12, 2022
    Assignee: THE UNIVERSITY OF NORTH DAKOTA
    Inventors: Mohammad Haerinia, Sima Noghanian, Reem Shadid
  • Patent number: 11288973
    Abstract: The present subject matter provides various technical solutions to technical problems facing UAV detection, threat assessment, and mitigation purposes. UAV detection may be accomplished using a variety of UAV sensors and systems, which may be used in an Unmanned Aerial System Mitigation and Detection system to generate a UAV Automated Threat Assessment and a UAV mitigation solution. The UAV Automated Threat Assessment may be generated by combining input from various sensors and systems. For example, the UAV Automated Threat Assessment may selectively combine data received from geographically arranged sensors, assemble the input from those sensors using a user-adjustable artificial neural network (ANN), determine whether a potential intruding UAV is not a threat, is transiting, is loitering, or is attacking, and generates a mitigation solution output to an operator that includes an automated mitigation notification.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: March 29, 2022
    Assignee: University of North Dakota
    Inventor: Joseph James Vacek
  • Publication number: 20220025173
    Abstract: A polymer includes a plurality of repeated polymerized units according to scheme (2):
    Type: Application
    Filed: August 25, 2020
    Publication date: January 27, 2022
    Applicant: The University of North Dakota
    Inventors: Qianli Chu, Rahul Shahni
  • Publication number: 20220009809
    Abstract: A method for removing recalcitrant organic compounds from water includes exposing water to an oxidizing agent, thereby reducing an amount of at least some classes of dissolved organic matter in the water and adsorbing at least some of the remaining dissolved organic matter in the water onto a porous adsorbent, resulting in adsorbed organic matter on the porous adsorbent. The method includes thermally treating the adsorbed organic matter on the porous adsorbent to remove and degrade the adsorbed organic matter.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 13, 2022
    Applicant: The University of North Dakota
    Inventor: Feng Xiao
  • Publication number: 20210363294
    Abstract: A polymer is made from polymerization of CBDA monomers. The resulting polymer is thermally cleavable, making it recyclable when heated and degraded. The resulting intermediate material can be hydrolyzed back to initial starting material for synthesizing CBDA monomers.
    Type: Application
    Filed: November 25, 2019
    Publication date: November 25, 2021
    Applicant: University of North Dakota
    Inventors: Qianli Chu, Zhihan Wang
  • Publication number: 20210347718
    Abstract: A method of making cyclobutane-1,2-diacid building blocks includes using trans-cinnamic acid in its beta form (head to head packing) and photodimerizing the trans-cinnamic acid to create cis-cyclobutane-1,2-dicarboxylic acid (CBDA4).
    Type: Application
    Filed: November 25, 2019
    Publication date: November 11, 2021
    Applicant: University of North Dakota
    Inventors: Qianli Chu, Zhihan Wang
  • Patent number: 11170909
    Abstract: A dielectric substrate made from sunflower seed shells has good moldabiltiy and low water adsorption for use in creating antenna or other devices. The dielectric substrate is made by pyrolizing sunflower seed shells or husks and collecting the resulting tar to create the substrate.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: November 9, 2021
    Assignee: The University of North Dakota
    Inventors: Ali Saleh Alshami, Sima Noghanian
  • Patent number: 11159502
    Abstract: A system and method include an encryptor, a decryptor, and a communication link. The encryptor includes a first processor and a first memory, and the decryptor includes a second processor and a second memory. The encryptor and the decryptor communicate data via the communication link. The encryptor and the decryptor are configured to: exchange public messages comprising keying materials, and calculate a common key based on the keying materials, first private modular integers known only to the encryptor, and second private modular integers known only to the decryptor. The keying materials disclosed in the public messages form an under-determined system of equations in variables of the first and the second private modular integers.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: October 26, 2021
    Assignee: University of North Dakota
    Inventor: Jun Liu
  • Publication number: 20210214678
    Abstract: A method of making a porous three-dimensional graphene mesh includes combining a graphene-containing material and a polymer having a plurality of hydroxyl groups in an alcohol solvent to form a mixture, adding a salt to the mixture, heating the mixture to form a gel, and washing the gel with water to remove the salt from the gel, leaving behind stable pores to form a scaffold. A three-dimensional porous graphene mesh includes a graphene-containing material and a polymer. The polymer is crosslinked with the graphene-containing material such that the Young's Modulus of the mesh is at least about 5 GPa.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Applicant: University of North Dakota
    Inventors: Ying Zhang, Julia Xiaojun Zhao, Diane Darland
  • Patent number: 10988732
    Abstract: A method of making a porous three-dimensional graphene mesh includes combining a graphene-containing material and a polymer having a plurality of hydroxyl groups in an alcohol solvent to form a mixture, adding a salt to the mixture, heating the mixture to form a gel, and washing the gel with water to remove the salt from the gel, leaving behind stable pores to form a scaffold. A three-dimensional porous graphene mesh includes a graphene-containing material and a polymer. The polymer is crosslinked with the graphene-containing material such that the Young's Modulus of the mesh is at least about 5 GPa.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: April 27, 2021
    Assignee: University of North Dakota
    Inventors: Ying Zhang, Julia Xiaojun Zhao, Diane Darland
  • Publication number: 20200381956
    Abstract: Apparatus and associated methods relate to providing wireless power transfer and wireless communications between two electronic components, each having an inductive coil and a microwave antenna centered about a common central axis, thereby ensuring alignment with one another. Wireless power transfer can be performed using electromagnetic coupling between the inductive coils and/or the microwave antennae of the two electronic components. In some embodiments, the two electronic components are an implantable biomedical device and an external interface system for the implantable biomedical device. Power-receive and power-transmit controllers control operation of power transmission by the external interface system and power reception by the implantable biomedical device, respectively. In some embodiments, the microwave antenna has a resonance frequency that is configured by location of an electrical connection to a ground plane.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 3, 2020
    Applicant: University of North Dakota
    Inventors: Mohammad Haerinia, Sima Noghanian, Reem Shadid
  • Patent number: 10808220
    Abstract: A method of making a porous three-dimensional graphene mesh includes combining a graphene-containing material and a polymer having a plurality of hydroxyl groups in an alcohol solvent to form a mixture, adding a salt to the mixture, heating the mixture to form a gel, and washing the gel with water to remove the salt from the gel, leaving behind stable pores to form a scaffold. A three-dimensional porous graphene mesh includes a graphene-containing material and a polymer. The polymer is crosslinked with the graphene-containing material such that the Young's Modulus of the mesh is at least about 5 GPa.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 20, 2020
    Assignee: University of North Dakota
    Inventors: Ying Zhang, Julia Xiaojun Zhao, Diane Darland
  • Patent number: 10751697
    Abstract: A process for producing activated carbon includes carbonizing an organic material to produce a charcoal, heating the charcoal in a chamber in the presence of oxygen at a temperature in the range of 400 to 500° C. for a duration of time sufficient to produce the activated carbon, and removing the charcoal from the heat once the activated carbon is formed.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: August 25, 2020
    Assignee: University of North Dakota
    Inventor: Feng Xiao