Patents Assigned to Drexel University
  • IDENTIFICATION AND PERSONALIZED PROTECTION OF TEXT DATA USING SHAPLEY VALUES
    Publication number: 20210165965
    Abstract: Privacy, protection, and de-anonymization are issues of societal importance that are implicitly at the core of several key information systems, from electronic health records to online reviews. The system and method herein allows for an identification of an author of anonymous writing based on the text and structured data, subject to practical constraints on the intruder's amount of training data and effort using Shapley values.
    Type: Application
    Filed: November 20, 2020
    Publication date: June 3, 2021
    Applicants: Drexel University, Cornell University
    Inventors: Matthew John Schneider, Shawn Mankad
  • Direct integration of individually controlled pixels into a knitted fabric matrix
    Patent number: 11024219
    Abstract: A flexible and scalable emissive fabric display with individually controllable pixels disposed within a fabric matrix. The pixels may include areas where electroluminescent thread contact conductive threads, and take the form of either individual stitches, or contact points between perpendicularly inlayed conductive threads and electroluminescent threads. Alternatively, the pixels may include individual electroluminescent segments disposed along a conductive thread.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: June 1, 2021
    Assignee: Drexel University
    Inventors: Adam K Fontecchio, Alyssa Ann Bellingham
  • METHODS, COMPUTER-READABLE MEDIA, AND SYSTEMS FOR ASSESSING SAMPLES AND WOUNDS, PREDICTING WHETHER A WOUND WILL HEAL, AND MONITORING EFFECTIVENESS OF A TREATMENT
    Publication number: 20210139987
    Abstract: One aspect of the invention provides a method of predicting whether a wound will heal. The method includes: obtaining a first measurement of a first macrophage phenotype population within a first sample obtained from a wound; obtaining a second measurement of a second macrophage phenotype population from the wound, wherein the second measurement of the second macrophage phenotype population is either: a different macrophage phenotype obtained from the first sample or the same macrophage phenotype obtained from a second, later sample from the wound; comparing the first measurement to the second measurement; and predicting whether the wound will heal based on a result of the comparing step.
    Type: Application
    Filed: January 2, 2021
    Publication date: May 13, 2021
    Applicant: Drexel University
    Inventors: Kara Spiller, Sina Nassiri, Michael Weingarten
  • Synthesis of gamma monoclinic sulfur and sulfur batteries containing monoclinic sulfur
    Patent number: 10991944
    Abstract: The present invention relates to a method for making a novel cathode employing a monoclinic sulfur phase that enables a single plateau lithium-sulfur reaction in, for example, a carbonate electrolyte system. The cathode is applicable to a variety of other types of anodes. The method produces a cathode suitable for use in an electrode of a cell or battery by depositing monoclinic phase sulfur via vapor deposition onto a substrate in a sealed vapor deposition apparatus.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: April 27, 2021
    Assignee: Drexel University
    Inventors: Rahul Nagesh Pai, Vibha Kalra
  • Energy-efficient reactive jamming of frequency-hopping spread spectrum (FHSS) signals using software-defined radios
    Patent number: 10985861
    Abstract: A reactive jamming software defined radio (SDR) apparatus to target Frequency Hopping Spread-Spectrum (FHSS) signals includes a peripheral module for SDR processing; a reactive jamming hardware IP core that implements time-sensitive operations on a field programmable gate array (FGPA); and a host computer that implements non-time-critical operations, such as jammer configuration, logging, and strategy composition.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: April 20, 2021
    Assignee: Drexel University
    Inventors: Danh H. Nguyen, Marko Jacovic, Cem Sahin, Kapil R. Dandekar
  • Imaging agents
    Patent number: 10980898
    Abstract: The present disclosure provides imaging agents that are useful for the detection and evaluation of heart conditions, such as myocardial infarction. Upon activation, the imaging agents of the present disclosure may be detected using an ultrasound imaging device.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: April 20, 2021
    Assignee: Drexel University
    Inventors: Steven Wrenn, Brett Angel, Andrew Kohut, Aaron Fafarman, Michael Cimorelli
  • METHOD FOR GENERATION OF NOVEL MATERIALS USING NANOSECOND-PULSED DISCHARGE PLASMA IN LIQUID PHASE
    Publication number: 20210106968
    Abstract: A method for generation of material in a liquid phase comprising a step of subjecting the liquid phase to a nanosecond-pulsed discharge plasma.
    Type: Application
    Filed: July 7, 2020
    Publication date: April 15, 2021
    Applicant: DREXEL UNIVERSITY
    Inventors: Danil V. Dobrynin, Alexander Fridman
  • FREE-STANDING, BINDER-FREE METAL MONOXIDE/SUBOXIDE NANOFIBER AS CATHODES OR ANODES FOR BATTERIES
    Publication number: 20210111390
    Abstract: A nanofiber mat comprises metal oxide nanoparticles distributed on surface of metal oxide nanofibers, wherein the nanofiber mat has a surface area at least 150 m2/g, and the metal oxide is selected from titanium monoxide TiOx, wherein 0.65<x<1.25, niobium monoxide NbOx, wherein 0.982<x<1.008, vanadium (II) oxide VOx, wherein 0.79 <x <1.29, iron (II) oxide FexO, wherein 0.833<x<0.957, manganese (II) oxide MnxO, wherein 0.848<x<1.000, titanium suboxide, TiOnO2n-1, wherein n>1, molybdenum suboxide, MonO3n-1, wherein n>1, MonO3n-2, wherein n>1, and vanadium suboxide, VnO2n-1, wherein n>1. Cathodes, anodes and batteries are made using the nanofiber mat. Processes for producing the metal oxide nanofiber mat and an electrode including it are also provided.
    Type: Application
    Filed: December 4, 2020
    Publication date: April 15, 2021
    Applicant: Drexel University
    Inventors: Arvinder Singh, Vibha Kalra
  • Soft Magnetic Composites for Electric Motors
    Publication number: 20210104342
    Abstract: A soft magnetic composite comprising an iron or iron alloy ferromagnetic material coated with an oxide material. An interface between the ferromagnetic material and the layer of oxide contains antiphase domain boundaries. Two processes for producing a soft magnetic composite are also provided. One process includes depositing an oxide layer onto an iron or iron alloy ferromagnetic material by molecular beam epitaxy at a partial oxygen pressure of from 1×10?5 Torr to 1×10?7 Torr to form a coated composite. The other process includes milling an iron or iron alloy ferromagnetic material powder and an oxide powder by high-energy milling to form a mixture; compacting the mixture and curing in an inert gas atmosphere at a temperature from 500° C. to 1200° C. to form a soft magnetic composite.
    Type: Application
    Filed: December 10, 2020
    Publication date: April 8, 2021
    Applicant: DREXEL UNIVERSITY
    Inventors: Mitra Lenore Taheri, Katie Jo Sunday, Steven Richard Spurgeon, Steven Joseph May
  • Rapid sulfur melt diffusion into carbon host for making electrodes
    Patent number: 10971733
    Abstract: A free-standing electrically conductive porous structure suitable to be used as a cathode of a battery, including an electrically conductive porous substrate with sulfur diffused into the electrically conductive porous substrate to create a substantially uniform layer of sulfur on a surface of the electrically conductive porous substrate. The free-standing electrically conductive porous structure has a high performance when used in a rechargeable battery. A method of manufacturing the electrically conductive porous structure is also provided.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: April 6, 2021
    Assignee: Drexel University
    Inventors: Caitlin Nicole Dillard, Vibha Kalra
  • LEAKY-WAVE SPATIAL MODULATOR WITH INTEGRATED PHOTONIC CRYSTAL FOR ALL-OPTICAL ANALOG-TO-DIGITAL CONVERTERS
    Publication number: 20210096403
    Abstract: Performance improvement of an all-optical analog-to-digital converter (AOADC) addresses both RF and optical modeling of a leaky waveguide based optical spatial light modulator (SLM) using electro-optic (E-O) material. The E-O polymer provides improved sensitivity for SLM and achieves a broader bandwidth due to better velocity matching between RF and optical waves.
    Type: Application
    Filed: October 1, 2020
    Publication date: April 1, 2021
    Applicant: Drexel University
    Inventors: Afshin S. Daryoush, Kai Wei
  • RIGHT VENTRICLE-PULMONARY ARTERY/LEFT VENTRICLE-AORTA CONDUIT
    Publication number: 20210077791
    Abstract: A right ventricle-pulmonary artery conduit provides a first end having a first disc extending radially therefrom and a second disc, proximate to the first disc. The second disc extends radially from the first end. An expandable lumen section extends between the first disc and the second disc. The conduit also has a second end, distal from the first end.
    Type: Application
    Filed: September 13, 2020
    Publication date: March 18, 2021
    Applicant: Drexel University
    Inventors: Randy Michael Stevens, Achintya Moulick, Vicki Mahan, Amy L. Throckmorton
  • Chemiresistor gas sensor using MXene and the manufacturing method thereof
    Patent number: 10948446
    Abstract: This invention relates to a chemiresistor gas sensor using MXene and a method of manufacturing the same, wherein the chemiresistor gas sensor, manufactured in a manner in which a Ti3C2Tx MXene thin film is formed and transferred onto a sensor substrate, can exhibit good response and sensitivity.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: March 16, 2021
    Assignees: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, DREXEL UNIVERSITY
    Inventors: Hee-Tae Jung, Seon Joon Kim, Hyeong-Jun Koh, Yury Gogotsi
  • ULTRASOUND DEVICE AND THERAPEUTIC METHODS
    Publication number: 20210052874
    Abstract: The present invention is directed to an ultrasound device for use in implementing therapeutic treatments and transdermal analyte delivery. The device includes a piezoelectric transducer that efficiently and safely converts electrical energy to ultrasonic waves, and has a unique structure including a piezoelectric element positioned between two opposing, flexible concave covers. The device may be used for various therapeutic purposes including wound healing, tissue stimulation and transdermal analyte delivery. The invention is further directed to a novel analyte delivery system including the ultrasound device and an encapsulated analyte.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 25, 2021
    Applicant: DREXEL UNIVERSITY
    Inventors: Peter A. Lewin, Elizabeth S. S. Papazoglou, Youhan Sunny, Chris R. Bawiec, Leonid Zubkov, An Nguyen, Joshua Samuels
  • Fabric Touch Sensor
    Publication number: 20210048898
    Abstract: A planar (two-dimensional, XY location) touch sensor may include a knitted structure and supplementary method of sensing detects human touch on a fabric surface. This sensor may be fully knitted and detect the continuous planar location and contact force of human touch along the surface of the structure. The fabric may conform to any arbitrary surface and may be a rectangle for touch pad applications. This sensor may be used for applications that include robotics and human-machine interaction, smart garments and wearables, as well as medical textiles and flexible embedded sensors. This touch sensor may require as few as only two electrode connections from the fabric to sense both planar touch and pressure, which allows it to work in areas with limited space that allow for limited complexity for wiring.
    Type: Application
    Filed: October 30, 2020
    Publication date: February 18, 2021
    Applicant: Drexel University
    Inventors: Richard James Vallett, Ryan David Young, Robert Wallace Lehrich, Christina Dickinson Kara, Genevieve Dion, Youngmoo Edmund Kim
  • Protecting analog circuits with parameter biasing obfuscation
    Patent number: 10923442
    Abstract: A key based technique that targets obfuscation of critical circuit parameters of an analog circuit block by masking physical characteristics of a transistor (width and length) and the circuit parameters reliant upon these physical characteristics (i.e. circuit biasing conditions, phase noise profile, bandwidth, gain, noise figure, operating frequency, etc.). The proposed key based obfuscation technique targets the physical dimensions of the transistors used to set the optimal biasing conditions. The widths and/or lengths of a transistor are obfuscated and, based on an applied key sequence, provides a range of potential biasing points. Only when the correct key sequence is applied and certain transistor(s) are active, are the correct biasing conditions at the target node set.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: February 16, 2021
    Assignee: Drexel University
    Inventors: Ioannis Savidis, Vaibhav Venugopal Rao, Kyle Juretus
  • FLEXIBLE ON-CHIP POWER AND CLOCK
    Publication number: 20210034094
    Abstract: Modern integrated circuits have an increasing need for various levels of both supply voltage (V) and operating frequency (f) available at fine spatial and temporal granularity. This work introduces a solution that provides a number and quality of locally distributed V/f domains through FOPAC. Opportunistically sharing design resources and features between multi-phase voltage regulators (MPVRs) and resonant rotary clocks (ReRoCs) enabling i) the scalability to hundreds of domains, ii) fast switching times for both voltage and frequency, leading to temporal flexibility, and iii) locally distributed designs, leading to spatial flexibility.
    Type: Application
    Filed: May 29, 2020
    Publication date: February 4, 2021
    Applicants: Drexel University, University of South Florida
    Inventors: Baris Taskin, Ragh Kuttappa, Selcuk Kose
  • METHOD OF GENERATION OF PLANAR PLASMA JETS
    Publication number: 20210029813
    Abstract: Applications of dielectric barrier discharge (DBD) based atmospheric pressure plasma jets are often limited by the relatively small area of treatment due to their 1D configuration. This system generates 2D plasma jets permitting fast treatment of larger targets. DBD evolution starts with formation of transient anode glow, and continues with development of cathode-directed streamers. The anode glow can propagate as an ionization wave along the dielectric surface through and outside of the discharge gap. Plasma propagation is not limited to 1D geometry such as tubes, and can be organized in a form of a rectangular plasma jet, or other 2D or 3D shapes. Also described are a method for generating 2D plasma jets and use of the 2D plasma jets for cancer therapy.
    Type: Application
    Filed: February 20, 2019
    Publication date: January 28, 2021
    Applicants: Drexel University, Thomas Jefferson University
    Inventors: Danil V. DOBRYNIN, Alexander FRIDMAN, Abraham LIN, Vandana MILLER, Adam Snook
  • Photovoltaic cells comprising a layer of crystalline non-centrosymmetric light-absorbing material and a plurality of electrodes to collect ballistic carriers
    Patent number: 10903378
    Abstract: The present invention is directed to photovoltaic and photogalvanic devices and methods of generating electrical energy and power or detecting light therefrom, based on a novel nano-enhanced bulk photovoltaic effect using non-centrosymmetric crystals, including ferroelectric and piezoelectric materials, where the non-centrosymmetry is the equilibrium state or it is static or dynamically induced. In certain embodiments, the device comprises a layer of non-centrosymmetric crystalline materials, and a plurality of electrodes disposed in an array upon or penetrating into at least one surface of the crystalline material, the electrodes being optimally spaced to capture the ballistic carriers generated upon irradiation of the crystalline material.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: January 26, 2021
    Assignees: Drexel University, The Trustees of the University of Pennsylvania
    Inventors: Jonathan E. Spanier, Vladimir M. Fridkin, Alessia Polemi, Andrew M. Rappe
  • Enhanced circuity security through hidden state transitions
    Publication number: 20210019449
    Abstract: A state machine system on a chip presents hidden state transitions to create IC knowledge not available in a logical netlist and temporal key dependencies to increase the difficulty of executing the SAT attack. The change in the state space of a circuit over time may be used to increase circuit security. Hidden transitions that are frequency dependent, state dependent keys, and temporally dependent transition keys may be used as ways to increase security against SAT based attacks.
    Type: Application
    Filed: March 13, 2019
    Publication date: January 21, 2021
    Applicant: Drexel University
    Inventors: Kyle Joseph Juretus, Ioannis Savidis