Patents Assigned to Purdue Research Foundation
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Publication number: 20240146547Abstract: 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: ApplicationFiled: August 15, 2020Publication date: May 2, 2024Applicant: Purdue Research FoundationInventors: Young L Kim, Jung Woo Leem
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Publication number: 20240145612Abstract: 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: ApplicationFiled: November 9, 2023Publication date: May 2, 2024Applicants: Purdue Research Foundation, The Governors of the University of AlbertaInventors: Thomas R. Jones, Dimitrios Peroulis, Alden N. Fisher, Douglas W. Barlage
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Publication number: 20240142314Abstract: 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: ApplicationFiled: October 26, 2023Publication date: May 2, 2024Applicant: Purdue Research FoundationInventors: Roberto Felix Nares Alcala, Guillermo Paniagua-Perez, Lakshya Bhatnagar
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Publication number: 20240138790Abstract: 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: ApplicationFiled: October 26, 2023Publication date: May 2, 2024Applicant: Purdue Research FoundationInventors: Aaron James Specht, Linda H. Nie
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Patent number: 11973114Abstract: 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: GrantFiled: October 12, 2021Date of Patent: April 30, 2024Assignee: Purdue Research FoundationInventor: James A. Cooper
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Patent number: 11971226Abstract: 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: GrantFiled: January 11, 2022Date of Patent: April 30, 2024Assignee: Purdue Research FoundationInventors: Zubin Jacob, Xueji Wang, Ali Jishi, Avra Sankar Bandyopadhyay
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Patent number: 11971576Abstract: 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: GrantFiled: December 5, 2022Date of Patent: April 30, 2024Assignee: Purdue Research FoundationInventors: Urcan Guler, Alexander Kildishev, Vladimir M. Shalaev, Alexei S. Lagutchev, Andrey N. Smolyaninov
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Patent number: 11970448Abstract: 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: GrantFiled: July 15, 2020Date of Patent: April 30, 2024Assignees: CORNELL UNIVERSITY, PURDUE RESEARCH FOUNDATIONInventors: Francis Barany, Maneesh Pingle, Donald E. Bergstrom, Sarah F. Giardina, Lee Daniel Arnold
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Patent number: 11965851Abstract: 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: GrantFiled: October 21, 2020Date of Patent: April 23, 2024Assignee: Purdue Research FoundationInventors: David H. Thompson, Christopher Benjamin, Kyle Wright, Scott C. Bolton, Seok-Hee Hyun
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Patent number: 11966714Abstract: 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: GrantFiled: January 30, 2022Date of Patent: April 23, 2024Assignee: Purdue Research FoundationInventors: Shubham Jain, Anand Raghunathan, Sumeet Kumar Gupta
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Publication number: 20240127614Abstract: 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: ApplicationFiled: August 15, 2020Publication date: April 18, 2024Applicant: Purdue Research FoundationInventors: Young L Kim, Jung Woo Leem
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Publication number: 20240128471Abstract: 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: ApplicationFiled: October 13, 2023Publication date: April 18, 2024Applicant: Purdue Research FoundationInventor: Wenzhuo Wu
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Patent number: 11960037Abstract: 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: GrantFiled: January 5, 2022Date of Patent: April 16, 2024Assignee: Purdue Research FoundationInventor: Rahim Rahimi
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Patent number: 11961529Abstract: 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: GrantFiled: May 17, 2022Date of Patent: April 16, 2024Assignee: Purdue Research FoundationInventor: Joshua Michael Alexander
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Patent number: 11960102Abstract: 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: GrantFiled: August 6, 2020Date of Patent: April 16, 2024Assignee: Purdue Research FoundationInventors: Fan Xu, Fang Huang, Donghan Ma
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Patent number: 11953707Abstract: 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: GrantFiled: January 13, 2021Date of Patent: April 9, 2024Assignee: Purdue Research FoundationInventors: Laura Daniela Vallejo-Melgarejo, Jose Manuel Garcia-Bravo, Brittany Ann Newell, Ronald George Reifenberger
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Patent number: 11954905Abstract: 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: GrantFiled: June 28, 2019Date of Patent: April 9, 2024Assignees: Hewlett-Packard Development Company, L.P., Purdue Research FoundationInventors: Yang Cheng, Xiaoyu Xiang, Shaoyuan Xu, Qian Lin, Jan Philip Allebach
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Patent number: 11957058Abstract: 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: GrantFiled: February 18, 2023Date of Patent: April 9, 2024Assignee: Purdue Research FoundationInventors: Mukerrem Cakmak, Armen Yildirim, Rahim Rahimi
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Publication number: 20240114764Abstract: 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: ApplicationFiled: December 1, 2023Publication date: April 4, 2024Applicant: Purdue Research FoundationInventors: Letian Dou, Blake Peter Finkenauer
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Patent number: D1024134Type: GrantFiled: December 17, 2020Date of Patent: April 23, 2024Assignee: Purdue Research FoundationInventors: Qili Liu, Li Qiao