Patents Assigned to Lehigh University
  • Patent number: 9701566
    Abstract: Provided herein are novel nanoporous glass fibers, and methods of preparing and using such fibers. In some embodiments, articles are made from particular glass starting materials, such as soda-lime phosphosilicate glass fabricated by melt-quench methods. The articles include nanoporous fibers that can be used alone, or sewn, woven, bundled, and otherwise incorporated to form nanoporous articles, including bioactive articles.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: July 11, 2017
    Assignee: Lehigh University
    Inventors: Hassan M.M. Moawad, Himanshu Jain
  • Patent number: 9660416
    Abstract: A distributed antenna-coupling feedback scheme and specially designed distributed feedback (DFB) metallic cavity and grating for laser application and in particular to plasmonic lasers ensuring a predesigned phase condition such that a mode traveling inside a waveguide is coupled/phase-locked to a mode traveling on the top metal improving the beam quality of the laser.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: May 23, 2017
    Assignee: Lehigh University
    Inventors: Sushil Kumar, Chongzhao Wu
  • Patent number: 9656900
    Abstract: Provided herein are methods for preparing nano-macroporous glass articles, such as bioscaffolds, from starting materials such as phosphosilicate glasses made by melt-quench methods, mixed with a soluble pore former such as a sugar, followed by steps of dissolving, heating, and leaching to yield a glass composition having a highly interconnected system of both macropores and large scale nanoporosity.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: May 23, 2017
    Assignee: Lehigh University
    Inventors: Himanshu Jain, Hassan Mohamady Mohamed Moawad
  • Patent number: 9649589
    Abstract: 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: Grant
    Filed: February 21, 2014
    Date of Patent: May 16, 2017
    Assignee: Lehigh University
    Inventors: Rama Rao Vemula, Shivaji Sircar, Mayuresh Kothare
  • Patent number: 9623398
    Abstract: Provided herein are synthetic porous electron-rich covalent organonitridic frameworks (PECONFs). The PECONFs are useful as an adsorbent class of materials. In the PECONFs, inorganic nitridic building units are interconnected via electron-rich aromatic units to form porous covalent frameworks. The frameworks include tunable porous, electron-rich organonitridic frameworks, which are determined based upon synthetic methods as exemplified herein.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: April 18, 2017
    Assignee: Lehigh University
    Inventors: Kai Landskron, Mohanty Paritosh
  • Patent number: 9580337
    Abstract: 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: Grant
    Filed: December 17, 2014
    Date of Patent: February 28, 2017
    Assignee: Lehigh University
    Inventors: Arup SenGupta, Robert Creighton, Ryan Smith
  • Patent number: 9555454
    Abstract: 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: Grant
    Filed: March 14, 2014
    Date of Patent: January 31, 2017
    Assignee: Lehigh University
    Inventors: Sibel Pamukcu, Yi Dong
  • Patent number: 9546361
    Abstract: Described herein are proteins having lyase activity and nucleic acid sequences which code therefor; along with methods of expressing, isolating, purifying, and using same.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: January 17, 2017
    Assignee: Lehigh University
    Inventor: Bryan William Berger
  • Patent number: 9403712
    Abstract: 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: Grant
    Filed: August 21, 2015
    Date of Patent: August 2, 2016
    Assignee: Lehigh University
    Inventor: Himanshu Jain
  • Patent number: 9390260
    Abstract: 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: Grant
    Filed: August 19, 2015
    Date of Patent: July 12, 2016
    Assignee: Lehigh University
    Inventors: Gang Tan, Ben Niu
  • Patent number: 9361102
    Abstract: 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: Grant
    Filed: June 9, 2015
    Date of Patent: June 7, 2016
    Assignee: Lehigh University
    Inventors: Gang Tan, Ben Niu
  • Patent number: 9349910
    Abstract: 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: Grant
    Filed: January 30, 2014
    Date of Patent: May 24, 2016
    Assignee: Lehigh University
    Inventors: Nelson Tansu, Ronald A. Arif, Yik Khoon Ee, Hongping Zhao
  • Patent number: 9340978
    Abstract: 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: Grant
    Filed: April 18, 2012
    Date of Patent: May 17, 2016
    Assignee: Lehigh University
    Inventor: Clay Naito
  • Patent number: 9321675
    Abstract: 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: Grant
    Filed: September 14, 2012
    Date of Patent: April 26, 2016
    Assignee: Lehigh University
    Inventor: Himanshu Jain
  • Patent number: 9293717
    Abstract: 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: Grant
    Filed: August 16, 2012
    Date of Patent: March 22, 2016
    Assignee: Lehigh University
    Inventors: Bryan Berger, Steven McIntosh
  • Publication number: 20150175447
    Abstract: 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: Application
    Filed: December 17, 2014
    Publication date: June 25, 2015
    Applicant: Lehigh University
    Inventors: Arup SenGupta, Robert Creighton, Ryan Smith
  • Publication number: 20140374351
    Abstract: 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: Application
    Filed: May 28, 2014
    Publication date: December 25, 2014
    Applicant: Lehigh University
    Inventors: Arup K. SenGupta, Ryan C. Smith
  • Patent number: 8844205
    Abstract: 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: Grant
    Filed: January 7, 2013
    Date of Patent: September 30, 2014
    Assignees: The Penn State Research Foundation, Lehigh University
    Inventors: Robert J. Michael, Shannon K. Sweeney, Ernest B. Ferro, Richard Sause, Jr., James M. Ricles, Akbar Mahvashmohammadi, Jeffrey A. Ferro
  • Publication number: 20140262203
    Abstract: 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: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Lehigh University
    Inventors: Sibel Pamukcu, Yi Dong
  • Patent number: 8815963
    Abstract: 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: Grant
    Filed: November 4, 2013
    Date of Patent: August 26, 2014
    Assignees: Auxilium Green, LLC, Lehigh University
    Inventors: Hugo S. Caram, Ranjan K. Sahoo, Richard G. Herman, Divyanshu R. Acharya