Patents Assigned to Purdue Research Foundation
  • Publication number: 20240146547
    Abstract: A method of generating a physically unclonable function (PUF) for pharmaceutical authentication is disclosed which includes generating an edible (PUF), affixing the edible PUF onto a pharmaceutical in a random distribution, and generating a crypto-graphic key based on the randomly distributed and affixed edible PUF. The present disclosure generally relates to counterfeit measures, and in particular, to an arrangement concerning an edible unclonable function counterfeit measure.
    Type: Application
    Filed: August 15, 2020
    Publication date: May 2, 2024
    Applicant: Purdue Research Foundation
    Inventors: Young L Kim, Jung Woo Leem
  • Publication number: 20240145612
    Abstract: A waveguide assembly integrated with a semiconductor wafer is provided. The waveguide assembly includes a waveguide channel defined by internal walls of the wafer lined with a metallic layer, and having at least one port for transmission of the RF signal into or out of the waveguide channel. The waveguide assembly also includes a semiconductor obstacle member disposed in the waveguide channel. The waveguide assembly may be fabricated using etching and deposition processes for semiconductor devices. In use, selectively varying either one or both of frequency or power level of electromagnetic radiation applied to the obstacle member varies electrical conductance of the obstacle member, and thereby varies the electrical impedance of the obstacle member to transmission of the RF signal through the waveguide channel. The waveguide assembly may be used for switching, attenuating, routing, filtering, and transforming the RF signal.
    Type: Application
    Filed: November 9, 2023
    Publication date: May 2, 2024
    Applicants: Purdue Research Foundation, The Governors of the University of Alberta
    Inventors: Thomas R. Jones, Dimitrios Peroulis, Alden N. Fisher, Douglas W. Barlage
  • Publication number: 20240142314
    Abstract: The temperature measurement system includes a thermocouple probe, a non-transitory computer-readable storage medium storing processor-executable instructions, and a processor. The processor-executable instructions are configured to enable to processor to form a model of the thermocouple probe, perform several computational fluid dynamic (CFD) analyses of the thermocouple probe using a predetermined Reynolds number, output a first temperature (T1CFD) and a second temperature (T2CFD) at the junctions for each simulation, apply a linear regression between the T1CFD and the T2CFD, output a slope from the linear regression, and output a corrected gas temperature with at least one algorithm.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Applicant: Purdue Research Foundation
    Inventors: Roberto Felix Nares Alcala, Guillermo Paniagua-Perez, Lakshya Bhatnagar
  • Publication number: 20240138790
    Abstract: The bone measurement system is configured to detect a density of a metallic source within a bone. The bone measurement system includes an x-ray fluorescence (XRF) device, a filter, a radiation detector, a non-transitory computer-readable storage medium storing processor-executable instructions, and a processor. The XRF device may have an x-ray tube including an x-ray source and an anode. The x-ray source may be configured to produce an x-ray beam. The x-ray tube may include a backscatter geometry of around less than one-hundred and eighty degrees to more than ninety degrees. The filter may be disposed along a path of the x-ray beam. The radiation detector may be coupled to the XRF device.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Applicant: Purdue Research Foundation
    Inventors: Aaron James Specht, Linda H. Nie
  • Patent number: 11973114
    Abstract: A semiconductor device includes at least a first lateral MOSFET formed on a semiconductor substrate. The first lateral MOSFET has an interface defined by a plurality of trenches along which the current flow can be modulated by a perpendicular electric field. The portion of the interface lies on a plane substantially perpendicular to the plane of the substrate. The interface is configured such that at least a portion of the current flow along the portion of the interface that lies on a plane substantially perpendicular to the plane of the substrate is in a direction substantially parallel to the plane of the substrate.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: April 30, 2024
    Assignee: Purdue Research Foundation
    Inventor: James A. Cooper
  • Patent number: 11971226
    Abstract: A thermal dual-barrier coating system is disclosed which includes a first thermal barrier layer having a first thermal conductivity, one or more composite structures vertically disposed adjacent the first thermal barrier layer, each of the one or more composite structures includes an ultra-thin disordered semi-continuous metallic film and a layer of a second thermal barrier layer.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: April 30, 2024
    Assignee: Purdue Research Foundation
    Inventors: Zubin Jacob, Xueji Wang, Ali Jishi, Avra Sankar Bandyopadhyay
  • Patent number: 11971576
    Abstract: A method for producing a single photon source includes lithographically patterning a polymer on top of a plasmonic thin film, functionalizing top surfaces of the plasmonic thin film and the polymer, removing the polymer to form patterned functionalized sites on the top surface of the plasmonic thin film surface, and depositing nanodiamond particles to the patterned functionalized sites.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: April 30, 2024
    Assignee: Purdue Research Foundation
    Inventors: Urcan Guler, Alexander Kildishev, Vladimir M. Shalaev, Alexei S. Lagutchev, Andrey N. Smolyaninov
  • Patent number: 11970448
    Abstract: Described herein are monomers capable of forming a biologically useful multimer when in contact with one, two, three or more other monomers in an aqueous media. In one aspect, such monomers may be capable of binding to another monomer in an aqueous media (e.g. in vivo) to form a multimer, (e.g. a dimer). Contemplated monomers may include a ligand moiety, a linker element, and a connector element that joins the ligand moiety and the linker element. In an aqueous media, such contemplated monomers may join together via each linker element and may thus be capable of modulating one or more biomolecules substantially simultaneously, e.g., modulate two or more binding domains on a protein or on different proteins.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: April 30, 2024
    Assignees: CORNELL UNIVERSITY, PURDUE RESEARCH FOUNDATION
    Inventors: Francis Barany, Maneesh Pingle, Donald E. Bergstrom, Sarah F. Giardina, Lee Daniel Arnold
  • Patent number: 11965851
    Abstract: Methods of using grids in connection with suitable microscopy techniques, such as for determining the structure of target compounds including proteins, are disclosed. Said grid comprising a coating modified with one or more capture agents and a deactivating agent.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: April 23, 2024
    Assignee: Purdue Research Foundation
    Inventors: David H. Thompson, Christopher Benjamin, Kyle Wright, Scott C. Bolton, Seok-Hee Hyun
  • Patent number: 11966714
    Abstract: A circuit of cells used as a memory array and capable of in-memory arithmetic which includes a plurality of signed ternary processing, each signed ternary processing cell includes a first memory cell, adapted to hold a first digital value, a second memory cell, adapted to hold a second digital value, wherein a binary combination of the first digital value and the second digital value establishes a first signed ternary operand, a signed ternary input forming a second signed ternary operand, and a signed ternary output, wherein the signed ternary output represents a signed multiplication of the first signed ternary operand and the second signed ternary operand, a sense circuit adapted to output a subtraction result.
    Type: Grant
    Filed: January 30, 2022
    Date of Patent: April 23, 2024
    Assignee: Purdue Research Foundation
    Inventors: Shubham Jain, Anand Raghunathan, Sumeet Kumar Gupta
  • Publication number: 20240127614
    Abstract: A method of authenticating an item is disclosed which includes applying light to an item, wherein the item includes a random distribution of fluorescent particles disposed thereon, capturing one or more images from the item, generating a cryptographic pattern from the one or more captured images by a host processing system, communicating the cryptographic pattern to a remote processing system having a plurality of cryptographic keys in a database each uniquely associated with a corresponding item, comparing the cryptographic pattern with the plurality of cryptographic keys in the database, and communicating a positive evaluation for authentication to the host processing system if a match is found between one of the plurality of cryptographic keys and the communicated cryptographic pattern.
    Type: Application
    Filed: August 15, 2020
    Publication date: April 18, 2024
    Applicant: Purdue Research Foundation
    Inventors: Young L Kim, Jung Woo Leem
  • Publication number: 20240128471
    Abstract: The electrocatalyst system that is configured to oxidize a methanol molecule using piezo-electrocatalysis includes a substrate and a piezoelectric semiconductor. The piezoelectric semiconductor is coupled to the substrate. The piezoelectric semiconductor includes a nanostructured semiconducting zinc oxide (ZnO) catalyst. The nanostructured semiconducting zinc oxide catalyst is characterized by a UV-ozone (UV-O3) treatment process. The electrocatalyst system may be provided in a methanol fuel cell.
    Type: Application
    Filed: October 13, 2023
    Publication date: April 18, 2024
    Applicant: Purdue Research Foundation
    Inventor: Wenzhuo Wu
  • Patent number: 11960037
    Abstract: A printed radiation sensor that includes a substrate, an interdigitated electrode, and a conductive polymeric film. The interdigitated electrode including a first electrode with a plurality of first electrode digits and a second electrode with a plurality of second electrode digits. The interdigitated electrode disposed on the substrate. The conductive polymeric film including a blend of poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and polyvinyl alcohol (PVA). The PEDOT:PSS is configured to provide an electrically conductive medium. The PVA is configured to provide ductility and stability of the printed radiation sensor. Upon radiation exposure, the PVA is further configured to crosslink within a material matrix of the printed radiation sensor militating against the recombination of chain scission by forming a semi-interpenetrating polymer network (SIPN) with the PEDOT:PSS to provide an enhanced and stable impedance reading.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: April 16, 2024
    Assignee: Purdue Research Foundation
    Inventor: Rahim Rahimi
  • Patent number: 11961529
    Abstract: A method of audio signal processing comprising Hybrid Expansive Frequency Compression (hEFC) via a digital signal processor, wherein the method includes: classifying an audio signal input, wherein the audio signal input includes frication high-frequency speech energy, into two or more speech sound classes followed by selecting a form of input-dependent frequency remapping function; and performing hEFC including, re-coding of one or more input frequencies of the speech sound via the input-dependent frequency remapping function to generate an audio output signal, wherein the output signal is a representation of the audio signal input having a lower sound frequency.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: April 16, 2024
    Assignee: Purdue Research Foundation
    Inventor: Joshua Michael Alexander
  • Patent number: 11960102
    Abstract: A method of in situ point spread function (PSF) retrieval is disclosed which includes encoding 3D location of molecules into PSFs, receiving molecule-generated images containing PSFs, segmenting the images into sub-PSFs, initializing template PSFs from a pupil function, determining a maximum normalized cross correlation (NCC) coefficient (NCCmax) between the sub- and template PSFs, associating each of the sub-PSFs with a template PSF based on the NCCmax and storing the sub-PSFs in associated bins, aligning and averaging the binned sub-PSFs, applying a phase retrieval algorithm to the averaged sub-PSFs to update the pupil function, regenerating the template PSFs, repeating until a difference between a new and a prior generation pupil function is below a predetermined threshold, generating in situ PSFs from the last pupil function, and applying a maximum likelihood estimation algorithm based on the in situ PSFs and the sub-PSFs to thereby generate lateral and axial locations of molecules.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: April 16, 2024
    Assignee: Purdue Research Foundation
    Inventors: Fan Xu, Fang Huang, Donghan Ma
  • Patent number: 11953707
    Abstract: A multi-layer lens is disclosed which includes a plurality of dual-layer structures staked on top of one-another, wherein each dual-layer Ri of the plurality of dual-layers includes i) a first curable material having a height of ZLi cured at a predetermined curing level CA, and ii) a second curable material having a height of Zgi cured at a predetermined curing level CB.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: April 9, 2024
    Assignee: Purdue Research Foundation
    Inventors: Laura Daniela Vallejo-Melgarejo, Jose Manuel Garcia-Bravo, Brittany Ann Newell, Ronald George Reifenberger
  • Patent number: 11954905
    Abstract: An example system includes: a landmark detection engine to detect landmark positions of landmarks in images based on facial detection; an optical flow landmark engine to determine the landmark positions in the images based on optical flow of the landmarks between the images; a landmark difference engine to determine, for a landmark in a given image: a distance between a detected landmark position and an optical flow landmark position of the landmark; and a weighted landmark determination engine to determine, for a first and second image, a position for the landmark in the second image based on: a respective detected landmark position and a respective optical flow position of the landmark in the second image; and respective distances, determined with the landmark difference engine, between a first detected landmark position of the landmark in the first image and respective optical flow landmark positions for the first and second images.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: April 9, 2024
    Assignees: Hewlett-Packard Development Company, L.P., Purdue Research Foundation
    Inventors: Yang Cheng, Xiaoyu Xiang, Shaoyuan Xu, Qian Lin, Jan Philip Allebach
  • Patent number: 11957058
    Abstract: A method of transducing electrical energy to sound is disclosed which includes providing a transducer, the transducer includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length configured to provide a first electrical connectivity to an external circuit, and a second conductive protective electrode having the width and the length and configured to provide a second electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes, and providing an external circuit configured to provide an electrical signal to the first and second conductive protective electrodes to thereby transduce the electrical signal to sound.
    Type: Grant
    Filed: February 18, 2023
    Date of Patent: April 9, 2024
    Assignee: Purdue Research Foundation
    Inventors: Mukerrem Cakmak, Armen Yildirim, Rahim Rahimi
  • Publication number: 20240114764
    Abstract: A perovskite-polymer composite comprising a perovskite and a polymer, wherein the polymer has a structural unit comprising a thiourea (—HN(C?S)NH—) fragment and a (—R1—O—R2—) fragment, wherein R1 and R2 are each independently a C1-C6 alkyl or a cycloalkyl linker; a mechanically robust and self-healable solar cell comprising same; and a method of making same.
    Type: Application
    Filed: December 1, 2023
    Publication date: April 4, 2024
    Applicant: Purdue Research Foundation
    Inventors: Letian Dou, Blake Peter Finkenauer
  • Patent number: D1024134
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: April 23, 2024
    Assignee: Purdue Research Foundation
    Inventors: Qili Liu, Li Qiao