Patents by Assignee The University of Akron
  • Patent number: 9821310
    Abstract: Exemplary embodiments of the present disclosure provide for two-stage microfluidic devices using surface acoustic waves, methods of use thereof, methods of making, methods of focusing and separating particles, and the like.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: November 21, 2017
    Assignee: The University of Akron
    Inventors: Rasim Oytun Guldiken, Myeong Chan Jo, Jiang Zhe
  • Publication number: 20170327635
    Abstract: The present invention is directed to a versatile and high performance zwitterionic CP platform, which integrates all desired functions into one material. This zwitterionic CP consists of the conducting backbone and multifunctional zwitterionic side chains. Non-conducting zwitterionic materials gain electronic conductivity through the conducting backbone and CPs obtain excellent biocompatibility, sensitivity to environmental stimuli and controllable antifouling properties via multifunctional zwitterionic side chains. Unique properties from two distinct materials (conducting materials and zwitterionic materials) are integrated into one material without sacrificing any properties. This platform can potentially be adapted for a range of applications (e.g. bioelectronics, tissue engineering, wound healing, robotic prostheses, biofuel cell, etc.), which all require high performance conducting materials with excellent antifouling/biocompatibility at complex biointerfaces.
    Type: Application
    Filed: May 19, 2017
    Publication date: November 16, 2017
    Applicant: The University of Akron
    Inventor: Gang Cheng
  • Patent number: 9814607
    Abstract: A prosthesis includes a socket for receiving a residual limb, the socket having a socket wall defining a limb-receiving surface; a heat pipe including a working fluid and a wicking structure, the heat pipe having a socket section and a heat sink section, the heat pipe extending along its length through the socket wall proximate to or exposed at the limb-receiving surface, wherein the working fluid has a boiling point of from about 0° C. to 90° C. such that the working fluid is adapted to evaporate to form vapor under the influence of the heat of a residual limb in the socket thus drawing heat from and cooling the residual limb. A heat sink section of the heat pipe passes through the heat sink, the heat sink reducing the temperature of the working fluid.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: November 14, 2017
    Assignee: The University of Akron
    Inventors: Jiang Zhe, Yu Han
  • Patent number: 9809630
    Abstract: The present invention is directed to enzyme based methods for separating protein from protein-rich materials derived from plant seeds, fruit, or other biomass and products made therefrom. The protein content in the resulting products is improved by separating and removing the carbohydrates from around the proteins in, for example, soybean meal. This removal is facilitated by the enzymatic hydrolysis of poly- and oligomeric carbohydrates into monosaccharides and other water soluble sugars. The present invention provides for the production of three streams of useful materials. The first is an enriched protein material comparable to the known SPCs but without significant quantities of undigestible oligosaccharides and polysaccharides. The second is an SPI made from the soluble protein in the hydrolysate which is valuable for high-quality feed, food and industrial uses.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: November 7, 2017
    Assignee: THE UNIVERSITY OF AKRON
    Inventors: Lu-Kwang Ju, Abdullah Loman, Anthony Coffman, Qian Li, Srujana Koganti
  • Patent number: 9809908
    Abstract: Microscale and nanoscale tubular structures are provided including rheological fluids in their interior volume and including at least one electroactive component. Multiple tubular structures are provided, including simple hollow tube structures; core/shell structures, wherein the tube includes a tubular outer shell with a core extending axially therein; concentric tube or coaxial tube structures, wherein the tube includes a tubular outer shell and one or more concentric tubes extending axially therein; and core/concentric tube structures, wherein concentric tubes further include a core extending axially therein, thus having a core and two or more tubes surrounding the core. The tubular structures are formed by electrospinning and special spinnerets are provided. The tubular structures form fabrics for beneficial uses.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: November 7, 2017
    Assignee: University of Akron
    Inventor: Shing-Chung Wong
  • Patent number: 9801902
    Abstract: The present invention relates to methods for removal of dead tissue from wounds or skin using topical nitric oxide donor devices and/or compositions. In one embodiment, the present invention relates to a transdermal patch device that is designed to deliver nitric oxide. In another embodiment, the present invention relates to one or more devices and/or compositions that are designed to deliver nitric oxide and optionally one or more other compounds, where such devices/compositions include, without limitation, bandages, layered bandages, adhesive bandages, transdermal patches, creams, ointments, or a any combination of two or more thereof.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: October 31, 2017
    Assignees: The University of Akron, KCI USA, Inc.
    Inventors: Daniel J. Smith, Patrick John Trotter, Mahesh Bhide
  • Patent number: 9797851
    Abstract: An apparatus for detecting wear particles in a fluid includes an inlet channel and an outlet channel. An ultrasonic transducer creating an acoustic wave that defines an acoustic focal zone is located between the inlet and outlet channels. A flow path located between the inlet and outlet channel is shaped to restrict the flow of the fluid to be within the acoustic focal zone. An inductive pulse sensor includes a plurality of flow channels receiving the fluid and a plurality of planar coils wound around the flow channels. The inductive pulse sensor includes a detection system for the detection of wear particles passing through the flow channels based on a change in an electrical property of the planar coils. A single combined excitation signal is sent to all the planar coils at once and the detection system measures one single output measurement for the plurality of flow channels.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: October 24, 2017
    Assignee: The University of Akron
    Inventors: Jiang Zhe, Li Du
  • Patent number: 9790301
    Abstract: Copolymers having a substantially heterogeneous composition distribution and strong UV absorption are the direct reaction product of an isoolefin and at least one terpene having the molecular formulae of (C5H8)n where n is equal to or greater than two, and optionally additional monomers. More specifically, the invention relates to copolymers of isobutylene and alloocimene that exhibit thermoplastic elastomeric properties and exhibit strong filler interaction. The present invention also relates to methods for producing copolymers of at least one isoolefin and at least one terepene by a two-phase living polymerization that produces a substantially linear triblock and multiblock copolymer having substantially heterogeneous distribution of the isoolefin and terpene units.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: October 17, 2017
    Assignee: The University of Akron
    Inventor: Judit E. Puskas
  • Publication number: 20170295357
    Abstract: A three-dimensional (3D) communication device includes a 3D stereoscopic camera for capturing video and photos in 3D. The device also includes a 3D display, which enables the display of video and photos in 3D that have been captured by a local user's communication device or that have been received from a remote 3D communication device. The 3D communication device may be configured as a handheld standalone device or may alternatively be configured as a modular device, a case, or a dock that can be interfaced with a portable computing device, such as a smart phone, which lacks the capability to capture and view 3D video/photo content. As such, the 3D communication device enables 3D chat or communication between a local user and one or more remote users of the 3D communication device or any other computing device that is configured with suitable communication or chat software.
    Type: Application
    Filed: August 17, 2015
    Publication date: October 12, 2017
    Applicant: The University of Akron
    Inventor: Liu Yang
  • Patent number: 9787237
    Abstract: A fault tolerant control system for a multi-phase permanent magnet assisted synchronous reluctance motor utilizes vector control to provide safe operation under various phase loss fault conditions. Specifically, the vector control of the present invention utilizes a fault tolerant algorithm that receives a torque input and an electrical current feedback signal from the motor. Thus, in the presence of a fault condition, the vector control applies the optimal torque angle to the motor, while reducing the phase currents to an optimized value to lessen the saturation effect in the motor, so as to ensure that the motor delivers maximum torque output in the presence of such faults. As such, the control system allows the motor to operate safely with high reliability, which is highly desirable, such as in electric vehicles and the aerospace industry.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: October 10, 2017
    Assignee: The University of Akron
    Inventors: Seungdeog Choi, AKM Arafat
  • Patent number: 9783554
    Abstract: A lanthanide complex, method of forming and method of using the lanthanide complex as a near-infrared luminescent material are described. The complex includes at least one lanthanide ion and at least one polydentate ligand derived from a molecule having the general formula of Structure 2: where: E represents a heteroatom or heteroatom-containing group and R1-R8 are independently selected from H, —OH, —NH2, —SO3H, —CO2H, halides, optionally substituted organic groups; and conjugated linking groups which link two of the polydentate ligands of Structure 2 together.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: October 10, 2017
    Assignee: The University of Akron
    Inventors: Yi Pang, Qinghui Chu
  • Patent number: 9783631
    Abstract: Polyimide oligomer terminated with maleimide end groups may be cured by irradiation with UV light. The polyimide oligomer terminated with maleimide end groups may be cured in a polymerization mixture that includes a reactive diluent and optionally a photoinitiator. Due to the ability of the polyimide oligomer terminated with maleimide end groups to be cured with light applications the cured oligomer may be used in applications that require low temperatures.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: October 10, 2017
    Assignee: The University of Akron
    Inventors: Mark D. Soucek, Jinping Wu
  • Patent number: 9782433
    Abstract: In one or more embodiments, the present invention relates to a substantially homogeneous miscible liquid adhesive composition comprising a relatively high number average molecular weight (Mn=6,000-10,000 g/mole) cyanoacrylate tri-telechelic star polymer having polyisobutylene chains terminated with cyanoacrylate groups (High-Ø(PIB-CA)3); 2-octyl cyanoacrylate (Oct-CA); and a relatively low molecular weight (Mn=1,000-4,000 g/mole) cyanoacrylate tri-telechelic star polymer having polyisobutylene chains terminated with cyanoacrylate groups (Low-Ø(PIB-CA)3). The Low-Ø(PIB-CA)3 compatibilizes the High-Ø(PIB-CA)3 and Oct-CA removing the need for a solvent. When the substantially homogeneous miscible liquid adhesive compositions of various embodiments are reacted with a nucleophile, such as water or an initiator, they form a polymer co-network suitable for any of a number of biomedical applications, from wound closure and healing of skin tissue, to sealant for surgical cuts.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 10, 2017
    Assignee: The University of Akron
    Inventors: Joseph Kennedy, Istvan Szanka, Amalia Szanka
  • Patent number: 9783442
    Abstract: Phagotrophic algae are used in connection with aerobic or anaerobic digestion of solids, especially waste activated sludge (WAS), to more efficiently digest solids and to meet, over a shorter period of time, volatile solids standards and specific oxygen uptake rate requirements as well as pathogen reduction requirements.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: October 10, 2017
    Assignees: Ovivo Inc., The University of Akron
    Inventors: Lu-Kwang Ju, Hiren K. Trivedi
  • Patent number: 9777082
    Abstract: A method for the production of hyperbranched polyacrylates includes the step of reacting acrylic inimers through controlled living polymerization in aqueous conditions. The inimers may have the formula: Wherein X is a halogen, a thiocarbonylthio or nitroxide group, and R is hydrogen, methyl, dodecyl, and groups containing mesogenin substituents, fluorocarbon substituents, siloxane substituents and oxyethylene substituents. In particular, the aqueous condition is emulsion or miniemulsion. The polymerization may be reverse ATRP, SN&RI and AGET polymerization or RAFT polymerization (with thiocarbonylthio X groups) or nitroxide mediated polyeization (with nitroxide X groups).
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: October 3, 2017
    Assignee: The University of Akron
    Inventors: Coleen Pugh, Guillermina Garcia
  • Publication number: 20170260318
    Abstract: Sulfur containing, hydroxyl-telechelic PIBs, hydrolytically and oxidatively resistant, biocompatible and biostable polyurethanes (PUs) made therefrom, and methods for making both are disclosed. Well-defined hydroxyl telechelic PIBs are synthesized by a thiol-ene click photochemical reaction between PIBs carrying unsaturated end groups and 2-mercaptoethanol (HS—CH2CH2—OH). This regioselective process affords HO—CH2CH2—S-PIB-S—CH2CH2—OH (abbreviated herein as HO—S-PIB-S—OH) in high yield. In some embodiments, these HO—S-PIB-S—OH polymers may be reacted with diisocyanates and a chain extender to form sulfur containing PIB-based PUs. These sulfur containing PIB-based PUs have been found to have properties and chemical stability that are very similar to that of PUs made from di-hydroxyl terminated PIBs (OH-PIB-OHs) without sulfur, but have surprisingly increased creep resistance and are easier and less expensive to make.
    Type: Application
    Filed: August 26, 2015
    Publication date: September 14, 2017
    Applicant: The University of Akron
    Inventors: Joseph KENNEDY, Kalman TOTH, Nihan NUGAY, Turgut NUGAY
  • Patent number: 9745967
    Abstract: A thermal energy harvesting device includes a rotatable shaft and a shape memory alloy element secured to rotatable shaft. The shape memory alloy element is adapted to undergo a shape memory effect upon reaching a transition temperature, which causes rotation of the rotatable shaft. The rotatable shaft may be operatively connected to a generator or tachometer to convert the rotation of the shaft into electrical energy, which may then be stored in a rechargeable battery. In certain embodiments a gear box may be provided to increase the speed of rotation, and thereby increase the amount of electrical energy created.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: August 29, 2017
    Assignee: The University of Akron
    Inventors: Subramaniya Hariharan, Erik Engeberg
  • Patent number: 9744055
    Abstract: An antagonistically actuated shape memory alloy (SMA) manipulator utilizes a pair of SMA actuators. The SMA actuators are configured, such that one actuator is trained to have a substantially linear or extended shape in its austenite phase, while the other actuator is trained to have a curved or flexed shape in its austenite phase. As such, the manipulator is operated, such that when one SMA actuator is heated and takes on its “trained” shape in the austenite phase, the other SMA actuator is permitted to cool and allowed to return to its original “untrained” shape in the martensite phase, and vice versa. This antagonistic operation of the SMA actuators allows the manipulator to achieve rapid flexion and extension movements.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: August 29, 2017
    Assignee: The University of Akron
    Inventors: Erik D. Engeberg, Savas Dilibal
  • Publication number: 20170240493
    Abstract: The present invention is directed to a new class of thermoplastic elastomers (TPEs) and processes for making them. In some embodiments of the present invention, the end groups of the multi-arm PIB copolymer is a conjugated diene, whereas the other component is a multi-functional dienophile. The components of the TPE of the present invention are chemically connected via the well-known Diels-Alder reaction which is thermally reversible (by the retro-Diels-Alder reaction) at moderately elevated temperatures. The reversibility of the Diels-Alder retro-Diels-Alder reactions allows the recovery of the original components of the TPE and thus its recyclability and also gives the TPE the ability to be reshaped or reformed.
    Type: Application
    Filed: May 9, 2017
    Publication date: August 24, 2017
    Applicant: THE UNIVERSITY OF AKRON
    Inventors: JOSEPH P. KENNEDY, Turgut Nugay, Nihan Nugay
  • Publication number: 20170234745
    Abstract: A flexible sensor for monitoring operating parameters, including pressure and temperature, of a flexible structure, such as a tire, provides electrodes and an active area that are formed of flexible materials. In particular, the active area may be formed from an elastomeric piezoresistive material, such as an ionic liquid-polymer. The flexible properties of the sensor allow it to be readily incorporated into the body of a tire during manufacture. This allows the operating parameters of the tire to be monitored, such as in real-time, while the tire is in operation. Furthermore, the sensor is formed of materials that allow the sensor to be formed using additive manufacturing techniques, such as 3D (three-dimensional) printing. As such, the sensor may be 3D printed together with another structure, such as a tire tread, so that the sensor is integrated therein.
    Type: Application
    Filed: February 13, 2017
    Publication date: August 17, 2017
    Applicant: The University of Akron
    Inventor: Jae-Won Choi