Patents Assigned to Lehigh University
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Patent number: 9390260Abstract: One aspect of the invention provides a method of controlling execution of a computer program. The method comprises the following runtime steps: parsing code to identify one or more indirect branches; creating a branch ID data structure that maps an indirect branch location to a branch ID, which is the indirect branch's equivalence class ID; creating a target ID data structure that maps a code address to a target ID, which is an equivalence class ID to which the address belongs; and prior to execution of an indirect branch including a return instruction located at an address: obtaining the branch ID associated with the return address from the branch ID data structure; obtaining the target ID associated with an actual return address for the indirect branch from the target ID data structure; and comparing the branch ID and the target ID.Type: GrantFiled: August 19, 2015Date of Patent: July 12, 2016Assignee: Lehigh UniversityInventors: Gang Tan, Ben Niu
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Patent number: 9361102Abstract: One aspect of the invention provides a method of controlling execution of a computer program. The method comprises the following runtime steps: parsing code to identify one or more indirect branches; creating a branch ID data structure that maps an indirect branch location to a branch ID, which is the indirect branch's equivalence class ID; creating a target ID data structure that maps a code address to a target ID, which is an equivalence class ID to which the address belongs; and prior to execution of an indirect branch including a return instruction located at an address: obtaining the branch ID associated with the return address from the branch ID data structure; obtaining the target ID associated with an actual return address for the indirect branch from the target ID data structure; and comparing the branch ID and the target ID.Type: GrantFiled: June 9, 2015Date of Patent: June 7, 2016Assignee: Lehigh UniversityInventors: Gang Tan, Ben Niu
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Patent number: 9349910Abstract: A light emitting device comprising a staggered composition quantum well (QW) has a step-function-like profile in the QW, which provides higher radiative efficiency and optical gain by providing improved electron-hole wavefunction overlap. The staggered QW includes adjacent layers having distinctly different compositions. The staggered QW has adjacent layers Xn, wherein X is a quantum well component and in one quantum well layer n is a material composition selected for emission at a first target light regime, and in at least one other quantum well layer n is a distinctly different composition for emission at a different target light regime. X may be an In-content layer and the multiple Xn-containing layers provide a step function In-content profile.Type: GrantFiled: January 30, 2014Date of Patent: May 24, 2016Assignee: Lehigh UniversityInventors: Nelson Tansu, Ronald A. Arif, Yik Khoon Ee, Hongping Zhao
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Patent number: 9340978Abstract: Provided herein are connectors for use in assembling reinforced concrete structures, as well as methods of assembly using the connectors. In one embodiment, the connectors and methods provide for secure and easy connection to the butt end of any rebar rod, as well as attachment of an opposite end to another metal structure. For example, a butt portion of a connector slides over the butt portion of a rebar rod, and can include one or more sidewall openings to allow welding onto rebar that is enclosed within the butt portion of the connector. The opposite second end can include a faceplate for attaching a weld plate, thus permitting a series of connections using connectors and weld plates, among other things. The connectors provide selected properties that differ from the rebar, welds, and weld plates, such as stretch, yield strength, ultimate strength, and transfer of stress and vibration, among other things.Type: GrantFiled: April 18, 2012Date of Patent: May 17, 2016Assignee: Lehigh UniversityInventor: Clay Naito
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Patent number: 9321675Abstract: Provided herein are biocompatible scaffolds and methods of preparing such bioscaffolds. The methods provide a superior high surface area, interconnected nanomacroporous bioactive glass scaffold, by combining a sol-gel process and polymer sponge replication methods. The formation of a uniformly nanoporous and interconnected macroporous bioscaffold is demonstrated using a starting material comprising a 70 mol % SiO2—30 mol % CaO glass composition as an example. The bioscaffold includes a series of open, interconnected macropores with size from 300 to 600 ?m, as desired for tissue ingrowth and vascularization. At the same time, coexisting nanopores provide high-specific surface area (>150 m2/g), which is needed for enhancing the structure's degradation rate. These bioscaffolds hold promise for applications in hard tissue engineering.Type: GrantFiled: September 14, 2012Date of Patent: April 26, 2016Assignee: Lehigh UniversityInventor: Himanshu Jain
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Patent number: 9290484Abstract: Nitric oxide biosynthesis-inhibiting anti-inflammatory and anti-microbial compounds of Formula (3) and Formula (4) wherein R1 and R2 are independently selected from optionally substituted thienyl, optionally substituted furyl, optionally substituted —CH?CH-thienyl and optionally substituted —CH?CH-furyl, provided that R2 is substituted with as nitro group Treatment methods utilizing the compounds, and methods of synthesis of the compounds are also disclosed.Type: GrantFiled: February 22, 2013Date of Patent: March 22, 2016Assignees: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY, LEHIGH UNIVERSITYInventors: Jeffrey D. Laskin, Diane E. Heck, Geraldine Guillon, Thomas Finetti, Angela Hunter, Christophe Guillon, Robert D. Rapp, Anna M. Vetrano, Ned D. Heindel
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Patent number: 9293717Abstract: New semiconductor nanoparticles and manufacturing technologies, including novel methods, systems, and compositions, are provided herein. Robust, reproducible production of large amounts of semiconductor nanoparticles, such as quantum dots, from bacterial cultures during continuous growth is provided, without a need for extensive post growth processing or modification. The result is a novel semiconductor of nanoparticle dimensions and quality that is suitable for commercial applications in lighting, display, imaging, diagnostics, photovoltaics and hydrogen generation, for example. In one embodiment, bacterial-based synthesis methods for producing nanocrystal semiconductor quantum dots are provided by aqueous, environmentally friendly media and methods.Type: GrantFiled: August 16, 2012Date of Patent: March 22, 2016Assignee: Lehigh UniversityInventors: Bryan Berger, Steven McIntosh
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Publication number: 20150375162Abstract: A oxygen concentrating system comprising an adsorption column having a first end and a second end, a shell enclosing the column and defining a product gas storage space between the column and the shell, a product conduit connecting the product gas storage space to a product output point, a first conduit comprising at least one first valve having at least a first and second configuration, in the first configuration, compressed air flows from the feed point to the first end, and, in the second configuration, waste gas flows from the first end to the waste point, and a second conduit comprising at least one second valve having at least a first and second configuration, in the first configuration, the product gas flows from the product gas storage space to the second end, and, in the second configuration, the product gas flows from the second end to the storage space.Type: ApplicationFiled: February 21, 2014Publication date: December 31, 2015Applicant: LEHIGH UNIVERSITYInventors: RAMA RAO VEMULA, SHIVAJI SIRCAR, MAYURESH KOTHARE
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Publication number: 20150370560Abstract: One aspect of the invention provides a method of controlling execution of a computer program. The method comprises the following runtime steps: parsing code to identify one or more indirect branches; creating a branch ID data structure that maps an indirect branch location to a branch ID, which is the indirect branch's equivalence class ID; creating a target ID data structure that maps a code address to a target ID, which is an equivalence class ID to which the address belongs; and prior to execution of an indirect branch including a return instruction located at an address: obtaining the branch ID associated with the return address from the branch ID data structure; obtaining the target ID associated with an actual return address for the indirect branch from the target ID data structure; and comparing the branch ID and the target ID.Type: ApplicationFiled: June 9, 2015Publication date: December 24, 2015Applicant: LEHIGH UNIVERSITYInventors: Gang TAN, Ben NIU
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Patent number: 9139465Abstract: Provided herein are conductive glass-metal compositions, as well as methods of making and using such compositions. In one example, the compositions include gold (Au) doped lithium-borate glasses shown to exhibit a transition from ionic to electronic conduction within the same sample. This is achieved via appropriate heat treatment, and particularly by heat treatment after annealing, wherein the post-annealing heat treatment is performed at temperatures below the glass transition temperature (Tg). The methods described herein are believed to introducing polarons formed from the trapping of electrons at partially ionized gold atoms. This unique electrical response provides new functionality to this class of nanocomposites. Additionally, increased thermal conductivity can be provided to an otherwise low conductive glass composition using the inventive methods and other subject matter provided herein.Type: GrantFiled: August 4, 2010Date of Patent: September 22, 2015Assignee: LEHIGH UNIVERSITYInventor: Himanshu Jain
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Patent number: 9120093Abstract: Polymeric anion exchanger are used as host materials in which sub-micron sized hydrated Zr(IV) oxides (HZrO) particles are irreversibly dispersed within the ion exchange medium, such as beads or fibers. The HZrO can be impregnated into the pore structure of resin by mixing the parent anion exchange resin with zirconium solution prepared by pre-calcined zirconium oxide dissolved in concentrated mixture of alcohol and acid, and then followed by precipitation of HZrO particles within the resin by using alkaline solution. Since the anion exchangers have positively charged such as quaternary ammonium functional groups, anionic ligands such as arsenate, fluoride can transport in and out of the gel phase without subjected to the Donnan exclusion effect. Consequently, anion exchanger-supported HZrO submicron particles exhibit significantly greater capacity to remove arsenic and fluoride in comparison with parent anon exchange resins.Type: GrantFiled: April 11, 2013Date of Patent: September 1, 2015Assignee: LEHIGH UNIVERSITYInventors: Arup K. SenGupta, Surapol Padungthon
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Publication number: 20150175447Abstract: A pressurized forward osmotic separation process is disclosed. Generally there are two processes described. One process involves the concentration of a target solute in the first solution; the other process involves the extraction of a solvent from a first solution both by a second solution comprising of water and soluble gas or water, soluble gas, and a compound by creating an osmotic concentration gradient across the semi permeable membrane. The first solution is under pressure from an inert gas and the second solution is under pressure from a soluble gas with equal system pressures greater than 1 atmosphere. The increase or decrease of partial pressure of the soluble gas in the second solution increases or decreases the chemical potential of the second solution to achieve different solution properties. The soluble gas may be carbon dioxide and the compound may be magnesium hydroxide.Type: ApplicationFiled: December 17, 2014Publication date: June 25, 2015Applicant: Lehigh UniversityInventors: Arup SenGupta, Robert Creighton, Ryan Smith
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Publication number: 20140374351Abstract: A process for treating feed water for desalination, the process comprising: (a) removing one or more polyvalent anions from the feed water by feeding the feed water into a bed comprising one or more anion exchange resins under conditions sufficient to exchange the polyvalent ions in the feed water with one or more monovalent anions in the resin; and (b) regenerating the bed by feeding a brine stream into the bed under conditions sufficient to exchange one or more polyvalent anions in the resins with one or more monovalent anions in the brine stream.Type: ApplicationFiled: May 28, 2014Publication date: December 25, 2014Applicant: Lehigh UniversityInventors: Arup K. SenGupta, Ryan C. Smith
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Patent number: 8844205Abstract: A passive damper for earthquake hazard reduction includes an inner member received in an outer member, with an elastomeric material disposed in the gaps between the inner and outer member. The elastomeric material has at least a first and a second portion. The first portion is bonded or connected to both the inner member and outer member such that no slippage occurs between the members and the material. The second portion is not bonded or connected to at least one of the inner and outer members such that slippage may occur.Type: GrantFiled: January 7, 2013Date of Patent: September 30, 2014Assignees: The Penn State Research Foundation, Lehigh UniversityInventors: Robert J. Michael, Shannon K. Sweeney, Ernest B. Ferro, Richard Sause, Jr., James M. Ricles, Akbar Mahvashmohammadi, Jeffrey A. Ferro
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Publication number: 20140287483Abstract: New semiconductor nanoparticles and manufacturing technologies, including novel methods, systems, and compositions, are provided herein. Robust, reproducible production of large amounts of semiconductor nanoparticles, such as quantum dots, from bacterial cultures during continuous growth is provided, without a need for extensive post growth processing or modification. The result is a novel semiconductor of nanoparticle dimensions and quality that is suitable for commercial applications in lighting, display, imaging, diagnostics, photovoltaics and hydrogen generation, for example. In one embodiment, bacterial-based synthesis methods for producing nanocrystal semiconductor quantum dots are provided by aqueous, environmentally friendly media and methods.Type: ApplicationFiled: August 16, 2012Publication date: September 25, 2014Applicant: LEHIGH UNIVERSITYInventors: Bryan Berger, Steven McIntosh
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Publication number: 20140262203Abstract: Described herein are systems for manipulating a flowable substance, comprising: a flowable substance; a heating means; a cooling means; and a composition comprising chemically inert particles coated with a stimuli-responsive material. Compositions and methods for using the compositions are also described herein.Type: ApplicationFiled: March 14, 2014Publication date: September 18, 2014Applicant: Lehigh UniversityInventors: Sibel Pamukcu, Yi Dong
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Patent number: 8815963Abstract: A catalyst composition includes an active material having a molybdenum- and sulfur-containing substance impregnated with an effective amount of cesium sufficient to promote synthesis of an alcohol, optionally carried on an inert support, wherein the active material is at least substantially free of a transition metal. The present invention is further directed to methods of preparing and using the same.Type: GrantFiled: November 4, 2013Date of Patent: August 26, 2014Assignees: Auxilium Green, LLC, Lehigh UniversityInventors: Hugo S. Caram, Ranjan K. Sahoo, Richard G. Herman, Divyanshu R. Acharya
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Publication number: 20140230360Abstract: Provided herein are connectors for use in assembling reinforced concrete structures, as well as methods of assembly using the connectors. In one embodiment, the connectors and methods provide for secure and easy connection to the butt end of any rebar rod, as well as attachment of an opposite end to another metal structure. For example, a butt portion of a connector slides over the butt portion of a rebar rod, and can include one or more sidewall openings to allow welding onto rebar that is enclosed within the butt portion of the connector. The opposite second end can include a faceplate for attaching a weld plate, thus permitting a series of connections using connectors and weld plates, among other things. The connectors provide selected properties that differ from the rebar, welds, and weld plates, such as stretch, yield strength, ultimate strength, and transfer of stress and vibration, among other things.Type: ApplicationFiled: April 18, 2012Publication date: August 21, 2014Applicant: Lehigh UniversityInventor: Clay Naito
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Publication number: 20140216935Abstract: Provided herein are methods of performing force spectroscopy, the methods comprising the steps of providing dielectrophoretic tweezers having at least one set of macroscopic electrodes, at least one of the electrodes having a microfabricated dielectric structure comprising a microwell; depositing force probes on a surface; binding the force probes to molecules on the surface; and applying voltage across set of macroscopic electrodes to thereby manipulate the molecules. Also provided are novel apparatus for performing force spectroscopy, the apparatus comprising dielectrophoretic tweezers having at least one set of macroscopic electrodes, at least one of the electrodes having a microfabricated dielectric structure comprising a microwell.Type: ApplicationFiled: August 8, 2013Publication date: August 7, 2014Applicant: Lehigh UniversityInventor: Dmitri Vezenov
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Publication number: 20140218738Abstract: An optical device includes a transparent substrate and a conductive layer disposed over an upper surface of the transparent substrate. The conductive layer defines at least one groove inwardly extending from an upper surface and includes an aperture that is spaced apart from the at least one groove. An interface between the upper surface of the conductive layer and an ambient medium defines an optical branch along which surface plasmon polariton modes are excited in response to at least partially coherent light being received by the optical device.Type: ApplicationFiled: September 6, 2012Publication date: August 7, 2014Applicant: LEHIGH UNIVERSITYInventors: Filbert Bartoli, Qiaoqiang Gan, Yongkang Gao