Patents Assigned to Clemson University
-
Publication number: 20220390810Abstract: This system and method of for providing a tunable orbital angular momentum system for providing higher order Bessel beams comprising: an acousto-optical deflector configured to receive an input beam, deflect a first portion of the input beam a first deflection angle relative to an axis of propagation and along an optical axis and deflect a second portion of the input beam a second deflection angle relative to the optical axis; a line generator disposed along the optical angle for receiving the first portion and the second portion of the input beam and provide an elliptical Gaussian mean; a log-polar optics assembly disposed along the optical angle for receiving the elliptical Gaussian beam and wrapping the elliptical Gaussian beam with an asymmetric ring; and, a Fourier lens configured to receive the wrapped elliptical Gaussian beam.Type: ApplicationFiled: June 13, 2022Publication date: December 8, 2022Applicant: Clemson UniversityInventors: Eric G. Johnson, Jerome Keith Miller, Richard Watkins, Kaitlyn Morgan, Wenzhe Li, Yuan Li
-
Patent number: 11510906Abstract: A drug product and method for treating a parasitic disease in a host is described. The drug product comprises: a carrier matrix; and a drug substance having the formula: wherein: R1 is selected from the group consisting of H, aliphatic of 1 to 100 carbons and arene comprising up to 100 carbons; each R3 is independently selected from the group consisting of H, aliphatic of 1 to 100 carbons and arene comprising up to 100 carbons; Y represents those elements necessary to form a 5 or 6 membered ring; X is selected from the group consisting of B, O, N, S, Se and P; and n is 1-4 as necessary to complete the valence of X.Type: GrantFiled: March 6, 2020Date of Patent: November 29, 2022Assignee: Clemson UniversityInventors: Daniel C. Whitehead, James C. Morris, Chandima J. Narangoda
-
Patent number: 11501472Abstract: This system is designed to color correct a targeted color or colors in a video stream comprising: a computer device having a computer readable medium; and, a set of computer readable instructions embodied on the computer readable medium that are configured to: receive a dataset that includes one or more pairs of video frames where a first frame of the pair of an incorrect color frame and the second frame of the pair is a color correct frame, using a machine learning module to create a mask according to the dataset, receiving an image, correcting the image, and, transmitting the corrected image to a display.Type: GrantFiled: September 27, 2020Date of Patent: November 15, 2022Assignee: Clemson University Research FoundationInventors: Erica B. Walker, D. Hudson Smith
-
Patent number: 11476634Abstract: A rare earth-doped optical fiber comprises a fluorosilicate core surrounded by a silica cladding, where the fluorosilicate core comprises an alkaline-earth fluoro-alumino-silicate glass, such as a strontium fluoro-alumino-silicate glass. The rare earth-doped optical fiber may be useful as a high-power fiber laser and/or fiber amplifier. A method of making a rare earth-doped optical fiber comprises: inserting a powder mixture comprising YbF3, SrF2, and Al2O3 into a silica tube; after inserting the powder mixture, heating the silica tube to a temperature of at least about 2000° C., some or all of the powder mixture undergoing melting; drawing the silica tube to obtain a reduced-diameter fiber; and cooling the reduced-diameter fiber. Thus, a rare earth-doped optical fiber comprising a fluorosilicate core surrounded by a silica cladding is formed.Type: GrantFiled: May 7, 2019Date of Patent: October 18, 2022Assignees: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS, CLEMSON UNIVERSITYInventors: Peter Dragic, John Ballato, Maxime Cavillon
-
Patent number: 11452294Abstract: Disclosed are methods for selectively controlling or modifying the growth of Poa annua in a turfgrass using a composition comprising an herbicidally-effective amount tebuconazole, or a salt thereof.Type: GrantFiled: December 6, 2018Date of Patent: September 27, 2022Assignees: North Carolina State University, Clemson University Research FoundationInventors: Fred H. Yelverton, Lambert McCarty
-
Patent number: 11433353Abstract: Methods and systems for the separation of hydrogen isotopes from one another are described. Methods include utilization of a hydrogen isotope selective separation membrane that includes a hydrogen isotope selective layer (e.g., graphene) and a hydrogen ion conductive supporting layer. An electronic driving force encourages passage of isotopes selectively across the membrane at an elevated separation temperature to enrich the product in a selected hydrogen isotope.Type: GrantFiled: June 6, 2019Date of Patent: September 6, 2022Assignees: Savannah River Nuclear Solutions, LLC, Clemson University Research Foundation, Georgia Tech Research CorporationInventors: Dale A. Hitchcock, Steven M. Serkiz, Timothy M. Krentz, Josef A. Velten, Kyle S. Brinkman, Eric M. Vogel, Katherine T. Young
-
Patent number: 11425863Abstract: Yield monitoring systems for round baling machines and methods that can provide weight estimations for round bales at the time of formation are described. Balers can include those that incorporate hydraulically actuated bale kicking or pushing assemblies as well as those that incorporate spring-loaded off ramps. Farm implements including baling machines and cotton module builders are encompassed. The system includes a sensor that can ascertain a physical parameter associated with ejection of a round bale from the farm implement. Physical parameters as may be ascertained can include pressures, velocities, accelerations, etc. associated with bale ejection.Type: GrantFiled: July 14, 2016Date of Patent: August 30, 2022Assignee: Clemson University Research FoundationInventors: Kendall R. Kirk, H. Guy Ramsey, IV, Perry J. Loftis
-
Patent number: 11415523Abstract: A system for monitoring an analyte concentration in liquid is provided. The system includes a coupon comprising an absorbent body with a window through the absorbent body wherein the liquid is maintained in said window by capillary action and surface tension. A reactant is in the absorbent body wherein the reactant is capable of diffusing into the window to react with an analyte in the liquid, or the reactant is able to react with the analyte within the coupon itself, with color-indicating by-products of the reaction diffusing into the window, wherein the analyte is present in an analyte concentration, to form a reactant with a color wherein the color has an intensity which correlates to the analyte concentration. A light source is provided which is capable of passing light into the window wherein the light is attenuated by the color proportional to the analyte concentration to form attenuated light. A detector is provided which is capable measuring an intensity of the attenuated light.Type: GrantFiled: September 4, 2018Date of Patent: August 16, 2022Assignee: Clemson University Research FoundationInventors: Robert A. Latour, George Chumanov, Alexandra Czynski
-
Patent number: 11374736Abstract: This is a system and method for homomorphic encryption comprising: a key generation module configured to generate a secret key, a public key and a bootstrapping key; a private-key encryption module configured to generate a first ciphertext using the secret key; a public-key encryption module configured to generate a second cyphertext using the public key; a private-key decoding module configured to decode a first ciphertext, a second ciphertext and an encrypted analytic result; a homomorphic computational module configured to perform an analytical operation, according to an analytical operation request on the first ciphertext and the second ciphertext without decrypting the first ciphertext and the second ciphertext using the bootstrapping key; and, wherein the encrypted analytical result is provided by the homomorphic computational module and are encrypted with the secret key.Type: GrantFiled: June 20, 2019Date of Patent: June 28, 2022Assignee: Clemson UniversityInventor: Shuhong Gao
-
Patent number: 11374503Abstract: A power transmission system can include a transformer and compensator circuit(s), each coupled between a node of the transformer and a ground connection. The compensator circuit(s) can each be configured to counteract a DC signal component of an AC signal at the transformer. The compensator circuit(s) can include a converter circuit having an AC side and a DC side and configured to convert a DC voltage on the DC side to an AC signal at the AC side. The compensator circuit(s) can include a DC link coupled to the DC side of the converter circuit. The compensator circuit(s) can include a controller configured to measure a DC signal component between the load and the ground; to determine, based at least in part on the DC signal component, a compensating signal configured to counteract the DC signal component; and to inject, by the converter circuit, the compensating signal to counteract the DC signal component.Type: GrantFiled: March 9, 2021Date of Patent: June 28, 2022Assignees: Savannah River Nuclear Solutions, LLC, Clemson UniversityInventors: Klaehn W. Burkes, Vincent J. Ceyssens, Johan H. R. Enslin, Moazzam Nazir
-
Patent number: 11366066Abstract: Apparatus include an atmospheric pressure glow discharge (APGD) analyte electrode defining an analyte discharge axis into an APGD volume, and a plurality of APGD counter electrodes having respective electrical discharge ends directed to the APGD volume, wherein the APGD analyte electrode and the APGD counter electrodes are configured to produce an APGD plasma in the APGD volume with a voltage difference between the APGD analyte electrode and one or more of the AGPD counter electrodes. An electrode can be integrated into an ion inlet. Apparatus can be configured to perform auto-ignition and/or provide multi-modal operation through selectively powering electrodes. Electrode holder devices are disclosed. Related methods are disclosed.Type: GrantFiled: October 11, 2019Date of Patent: June 21, 2022Assignees: Battelle Memorial Institute, Clemson University Research Foundation, GAA Custom Engineering LLCInventors: David W. Koppenaal, Ying Zhu, Edward D. Hoegg, R. Kenneth Marcus, Gordon A. Anderson, Chris Anderson, Tyler Williams
-
Patent number: 11357281Abstract: A force generator applying a force load against a facemask. A first load cell carrying a first portion of the facemask at an attachment point of the facemask where the facemask is attachable to a helmet. A second load cell carrying a second portion of the facemask at another attachment point of the facemask where the facemask is attachable to a helmet. A first attachment platform carrying the first load cell, wherein the first attachment platform is laterally movable in at least two degrees of freedom. A second attachment platform carrying the second load cell, wherein the second attachment platform is laterally movable in at least two degrees of freedom. The force generator directs the contact plate against the facemask to cause a horizontal deformation of the facemask and a lateral movement of the attachment platforms to allow for repeatable force load testing on a single facemask.Type: GrantFiled: October 18, 2019Date of Patent: June 14, 2022Assignee: CLEMSON UNIVERSITY RESEARCH FOUNDATIONInventors: John DesJardins, Gregory S. Batt, Alexander Bina
-
Patent number: 11320584Abstract: Accelerating photonic and opto-electronic technologies requires breaking current limits of modern chip-scale photonic devices. While electronics and computer technologies have benefited from “Moore's Law” scaling, photonic technologies are conventionally limited in scale by the wavelength of light. Recent sub-wavelength optical devices use nanostructures and plasmonic devices but still face fundamental performance limitations arising from metal-induced optical losses and resonance-induced narrow optical bandwidths. The present disclosure instead confines and guides light at deeply sub-wavelength dimensions while preserving low-loss and broadband operation. The wave nature of light is used while employing metal-free (all-dielectric) nanostructure geometries which effectively “pinch” light into ultra-small active volumes, for potentially about 100-1000× reduction in energy consumption of active photonic components such as phase-shifters.Type: GrantFiled: May 8, 2020Date of Patent: May 3, 2022Assignee: Clemson UniversityInventors: Judson D. Ryckman, Nazmus Sakib
-
Publication number: 20220125071Abstract: Disclosed herein are various organic plant protein compositions including a balanced amino acid profile with no chemical residues. Further disclosed herein are methods for creating organic plant protein compositions from organic plant material(s). In some embodiments, the organic plant protein composition includes pea protein, sorghum protein, organic baking powder, and organic vinegar.Type: ApplicationFiled: October 27, 2021Publication date: April 28, 2022Applicant: Clemson UniversityInventors: Dilrukshi Thavarajah, Pushparajah Thavarajah
-
Patent number: 11312807Abstract: Provided is a copolymer exhibiting self-healing properties. The copolymer comprises first units comprising first pendant groups wherein the first pendant groups are alkyls having at least 1 to no more than 6 carbons. Second units comprising second pendant groups are alkyls having at least 2 to no more than 8 carbons. The first units and second units are in a molar ratio of 45/55 to 55/45 and the pendant groups form an inter-pendant space having a volume of at least 80 Ang.3 to no more than 140 Ang.3. The copolymer comprises no more than 3 adjacent first units and no more than 3 adjacent second units.Type: GrantFiled: July 16, 2019Date of Patent: April 26, 2022Assignee: Clemson University Research FoundationInventor: Marek W. Urban
-
Patent number: 11275031Abstract: Devices and methods of providing a high-performance optical sensor disclose a sensor comprised of a porous material designed to have a multilayer rib-type or multilayer pillar-type waveguide geometry. The resulting porous nanomaterial multilayer-rib or multilayer-pillar waveguide design is optically capable of achieving ˜100% confinement factor while maintaining small mode area and single-mode character. Fabrication of the device is enabled by an inverse processing technique, wherein silicon wafers are first patterned and etched through well-established techniques, which allows porous nanomaterial synthesis (i.e., porous silicon anodization) either at the wafer-scale or at the chip-scale after wafer dicing. While ˜100% is an optimal target, typical devices per presently disclosed subject matter may operate with ˜98-99+%, while allowing for some design adjustments to be made if necessary, and still maintaining high sensitivity. i.e., >85-90% confinement suitable in some applications.Type: GrantFiled: September 5, 2019Date of Patent: March 15, 2022Assignee: Clemson UniversityInventors: Judson Ryckman, Gabriel Allen, William Frederick Delaney, Tahmid Talukdar
-
Patent number: 11253167Abstract: Systems and methods for detecting metal clips inserted within a portion of a body of a patient are disclosed herein. In one embodiment, a clip detector assembly includes a detector having a ferrous member, a transmitting coil around the ferrous member and configured to induce a current in the metal clip, and a receiving coil around the ferrous member and configured to receive a magnetic field generated by the current induced in the metal clip. The assembly can further include a control circuit having a band-pass filter configured to pass electrical signals induced by the magnetic field from the receiving coil that are within at most 35 kHz of a resonance frequency of the metal clip. The assembly still further includes a user notification component configured to alert a user to a location of the metal clip.Type: GrantFiled: August 28, 2017Date of Patent: February 22, 2022Assignees: MUSC Foundation for Research Development, Clemson University Research FoundationInventors: Nancy DeMore, Delphine Dean, Scott R. Slaney, Melissa McCullough, Cody Jordan, Joseph R. Wilson, III
-
Patent number: 11221473Abstract: Devices and methods for super-resolution optical microscopy are described. Devices include an optical multiplexer to develop an excitation/illumination optical beam that includes alternating pulses of different profiles. Devices also include a signal processing unit to process a sample response to excitation/illumination beam and to subtract the neighboring pulses of the different profiles from one another on a pulse-to-pulse basis. Devices can be incorporated in existing confocal microscopy designs. As the subtraction effectively reduces the volume of the response signal, the spatial resolution of the systems can be markedly improved as compared to previously known optical microscopy approaches.Type: GrantFiled: March 5, 2018Date of Patent: January 11, 2022Assignee: Clemson University Research FoundationInventors: Yang Li, Tong Ye, Xun Chen
-
Patent number: 11192297Abstract: A composite filament for use in additive manufacturing such as fused filament fabrication is described along with methods of its construction and use. The composite filament includes a single continuous filament (e.g., a continuous carbon roving) and a polymer (e.g., a high glass transition polymer) in intimate contact. The composite filament is formed through immersion of the continuous filament in a solution of the polymer. The composite filament can be combined with an additional formation material in an additive manufacturing process.Type: GrantFiled: May 23, 2017Date of Patent: December 7, 2021Assignees: University of South Carolina, Clemson University Research Foundation, TIGHITCO. Inc.Inventors: Michael Johannes Leonardus Van Tooren, Igor Luzinov, Nikolay Borodinov, Wout De Backer, Arturs Peteris Bergs
-
Patent number: 11162913Abstract: A method is disclosed for analysis of the impedance behavior of electrochemical impedance circuits or the Transfer Function for input-output systems, utilizing the symmetry of the phase angle response with the Log of the frequency to allow for determination of the lower frequency half of the impedance response over Log frequency based only on information from the upper half response. The underlying analytical basis for the symmetry of the phase angle and the methods for applying this analysis are applicable to simple R-C circuits, Randle circuits, Constant Phase Element (CPE)-Randles and coating model circuits. Symmetric functions describing the derivative of the phase angle, ?, with respect to the Log of the frequency can be used to determine the circuit elements requiring only the high frequency information. Only knowledge of the high frequency-based response is needed to know how the low frequency range behaves.Type: GrantFiled: March 19, 2020Date of Patent: November 2, 2021Assignee: Clemson UniversityInventors: Jeremy L. Gilbert, Piyush Khullar