Patents by Inventor Chunhong Li
Chunhong Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9602373Abstract: The invention discloses a method for dual-homing protection switching. The method includes: when the bidirectional forwarding detection (BFD) state of a Pseudo Wire (PW) is DOWN, the Provider Edge (PE) disenabling the Ethernet Operation, Administration and Maintenance (OAM) function of a port connected with a Customer Edge (CE); and the CE which has started a master and standby link switching function switching the service traffic to a standby link. The invention also provides corresponding apparatus and system. The invention reduces the influence of network failure on the service, decreases service unavailable probability and improves the service reliability.Type: GrantFiled: October 29, 2010Date of Patent: March 21, 2017Assignee: ZTE CorporationInventor: Chunhong Li
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Publication number: 20150246814Abstract: Fullerene nanostructures produced using a catalyst-free Carbo Thermal Carbon Conversion process may be protected and fuctionalized using a layer-by-layer method whereby functional groups on the nanostructure surface may be further derivatized to incorporate additional functional moieties. Exemplary moieties include redox mediator molecules, crown ethers, catalysts, boric acids, carbohydrates, oligonucleotides, DNA or RNA aptamers, peptide aptamers, proteins such as enzymes and antibodies, quantum dots and nanoparticles, cells, cell organelles, or other cellular components. The density of functional groups or functional moieties on carbon nanostructure surfaces may also be controlled as well as the degree of surface hydrophilicity of the nanostructure.Type: ApplicationFiled: October 15, 2012Publication date: September 3, 2015Applicant: NanoSelect, Inc.Inventors: Chunhong Li, David J. Ruggieri
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Publication number: 20150226699Abstract: Carbon nanostructures may be protected and functionalized using a layer-by-layer method whereby functional groups on the carbon nanostructure surface may be further derivatized to incorporate additional functional moieties. Carbon nanostructures functionalized using such a layer-by-layer method may be used to disperse, sort, separate and purify carbon nanostructures and may be used as sensing elements such as voltametric, amperometric, and potentiometric pH sensors or as biosensors, biometric sensing elements and electrodes and intracorporeal sensors and electrodes.Type: ApplicationFiled: October 16, 2012Publication date: August 13, 2015Applicant: NanoSelect, INC.Inventors: Chunhong Li, David J. Ruggieri
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Publication number: 20140326600Abstract: Carbon nanostructures may be protected and functionalized using a layer-by-layer method whereby functional groups on the carbon nanostructure surface may be further derivatized to incorporate additional functional moieties. Carbon nanostructures functionalized using such a layer-by-layer method may be used to disperse, sort, separate and purify carbon nanostructures and may be used as sensing elements such as voltammetric, amperometric, and potentiometric pH sensors or as biometric sensing elements and electrodes and intracorporeal sensors and electrodes.Type: ApplicationFiled: September 11, 2012Publication date: November 6, 2014Applicant: NANOSELECT, INC.Inventors: Chunhong Li, David J. Ruggieri
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Publication number: 20140330100Abstract: Carbon nanostructures may be protected and functionalized using a layer-by-layer method whereby functional groups on the carbon nanostructure surface may be further derivatized to incorporate additional functional moieties. Exemplary moieties include redox mediator molecules, crown ethers, catalysts, boric acids, carbohydrates, oligonucleotides, DNA or RNA aptamers, peptide aptamers, proteins such as enzymes and antibodies, quantum dots and nanoparticles, cells, cell organelles, or other cellular components. The density of functional groups or functional moieties on carbon nanostructure surfaces may also be controlled as well as the degree of surface hydrophilicity of the nanostructure.Type: ApplicationFiled: September 10, 2012Publication date: November 6, 2014Applicant: NANOSELECT, INC.Inventors: Chunhong Li, David J. Ruggieri
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Publication number: 20140291168Abstract: A chronoamperometric method and device to determine concentration of an electrochemically active species in a fluid and pH of the fluid. A plurality of sets of calibration relationships may be determined for a sensor in an aqueous solution, the sensor having one or more working electrodes and one or more reference electrodes. A first plurality of potentials may be applied across the working and reference electrodes of the sensor in solution, and a first plurality of currents and current differences obtained as a function of the applied first plurality of potentials. Concentration of an electrochemically active species may then be determined as a function of the obtained first plurality of currents and current differences using the plural sets of calibration relationships, and pH of the solution may be determined as a function of the obtained first plurality of currents and current differences using the plural sets of calibration relationships.Type: ApplicationFiled: November 8, 2012Publication date: October 2, 2014Applicant: Nanoselect, Inc.Inventors: Chunhong Li, Lin Zhang
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Patent number: 8362151Abstract: The present invention provides novel hybrid polymer useful for alignment layers for inducing alignment of a liquid crystal medium. Hybrid polymers of this invention are prepared from a) at least one component selected from the group consisting of oligomer(s) and polymer(s) within the class of polyimides, poly(amic acids) and esters thereof wherein the at least one component comprises at least one initiator generating moiety, and b) at least one component selected from the group consisting of addition monomer(s) and addition polymer(s), wherein the two components are covalently bonded to form a copolymer. The invention further describes liquid crystal elements such as all liquid crystal display products or modes, liquid crystal devices and liquid crystal optical films comprising the novel hybrid polymer alignment layers.Type: GrantFiled: December 15, 2009Date of Patent: January 29, 2013Assignee: Elsicon, Inc.Inventors: Chunhong Li, Wayne Gibbons
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Publication number: 20130021903Abstract: The invention discloses a method for dual-homing protection switching. The method includes: when the bidirectional forwarding detection (BFD) state of a Pseudo Wire (PW) is DOWN, the Provider Edge (PE) disenabling the Ethernet Operation, Administration and Maintenance (OAM) function of a port connected with a Customer Edge (CE); and the CE which has started a master and standby link switching function switching the service traffic to a standby link. The invention also provides corresponding apparatus and system. The invention reduces the influence of network failure on the service, decreases service unavailable probability and improves the service reliability.Type: ApplicationFiled: October 29, 2010Publication date: January 24, 2013Applicant: ZTE CORPORATIONInventor: Chunhong Li
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Publication number: 20120228157Abstract: Nanostructures comprising carbon and metal catalyst that are formed on a substrate, such as a silicon substrate, are contacted with a composition that, among other useful modifications, protects the nano structures and renders them stable in the presence of oxidizing agents in an aqueous environment. The protected nano structures are rendered stable over an extended period of time and thereby remain useful during such period as components of an electrode, for example, for detecting electrochemical species such as free chlorine, total chlorine, or both in water.Type: ApplicationFiled: November 11, 2010Publication date: September 13, 2012Applicant: NanoSelect, Inc.Inventors: Chunhong Li, Piu Francis Man, David J. Ruggieri
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Patent number: 8044200Abstract: Methods for purifying pteroic acid, analogs of pteroic acid, and derivatives of pteroic acid are described. Methods for synthesizing and purifying conjugates of vitamins, including FITC conjugates of folic acid, folic acid analogs, and derivatives of folic acid and folic acid analogs are also described. Purified forms of pteroic acid, derivatives and analogs of pteroic acid, and conjugates thereof are also described.Type: GrantFiled: March 14, 2006Date of Patent: October 25, 2011Assignee: Endocyte, Inc.Inventors: Le-Cun Xu, Iontcho Radoslavov Vlahov, Christopher Paul Leamon, Hari Krishna Santhapuram, Chunhong Li
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Publication number: 20100305230Abstract: The present invention provides novel hybrid polymer useful for alignment layers for inducing alignment of a liquid crystal medium. Hybrid polymers of this invention are prepared from a) at least one component selected from the group consisting of oligomer(s) and polymer(s) within the class of polyimides, poly(amic acids) and esters thereof wherein the at least one component comprises at least one initiator generating moiety, and b) at least one component selected from the group consisting of addition monomer(s) and addition polymer(s), wherein the two components are covalently bonded to form a copolymer. The invention further describes liquid crystal elements such as all liquid crystal display products or modes, liquid crystal devices and liquid crystal optical films comprising the novel hybrid polymer alignment layers.Type: ApplicationFiled: December 15, 2009Publication date: December 2, 2010Applicant: ELSICON, INC.Inventors: Chunhong Li, Wayne Gibbons
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Patent number: 7598234Abstract: A series of novel steroid derivatives are described. The steroid derivatives are antibacterial agents. The steroid derivatives also act to sensitize bacteria to other antibiotics including erythromycin and novobiocin.Type: GrantFiled: July 16, 2004Date of Patent: October 6, 2009Assignee: Brigham Young UniversityInventors: Paul B. Savage, Chunhong Li
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Publication number: 20080207625Abstract: Methods for purifying pteroic acid, analogs of pteroic acid, and derivatives of pteroic acid are described. Methods for synthesizing and purifying conjugates of vitamins, including FITC conjugates of folic acid, folic acid analogs, and derivatives of folic acid and folic acid analogs are also described. Purified forms of pteroic acid, derivatives and analogs of pteroic acid, and conjugates thereof are also described.Type: ApplicationFiled: March 14, 2006Publication date: August 28, 2008Applicant: Endocyte, Inc.Inventors: Le-Cun Xu, Iontcho Radoslavov Vlahov, Christopher Paul Leamon, Hari Krishna Santhapuram, Chunhong Li
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Publication number: 20050032765Abstract: A series of novel steroid derivatives are described. The steroid derivatives are antibacterial agents. The steroid derivatives also act to sensitize bacteria to other antibiotics including erythromycin and novobiocin.Type: ApplicationFiled: July 16, 2004Publication date: February 10, 2005Inventors: Paul Savage, Chunhong Li
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Patent number: 6767904Abstract: A series of novel steroid derivatives are described. The steroid derivatives are antibacterial agents. The steroid derivatives also act to sensitize bacteria to other antibiotics including erythromycin and novobiocin.Type: GrantFiled: August 15, 2001Date of Patent: July 27, 2004Assignee: Bringham Young UniversityInventors: Paul B. Savage, Chunhong Li
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Patent number: 6486148Abstract: A series of novel steroid derivatives are described. The steroid derivatives are antibacterial agents. The steroid derivatives also act to sensitize bacteria to other antibiotics including erythromycin and novobiocin.Type: GrantFiled: August 10, 2001Date of Patent: November 26, 2002Assignee: Brigham Young UniversityInventors: Paul B. Savage, Chunhong Li
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Publication number: 20020091278Abstract: A series of novel steroid derivatives are described. The steroid derivatives are antibacterial agents. The steroid derivatives also act to sensitize bacteria to other antibiotics including erythromycin and novobiocin.Type: ApplicationFiled: August 15, 2001Publication date: July 11, 2002Inventors: Paul B. Savage, Chunhong Li
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Patent number: 6350738Abstract: A series of novel steroid derivatives are described. The steroid derivatives are antibacterial agents. The steroid derivatives also act to sensitize bacteria to other antibiotics including erythromycin and novobiocin.Type: GrantFiled: January 19, 1999Date of Patent: February 26, 2002Assignee: Brigham Young UniversityInventors: Paul B. Savage, Chunhong Li
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Publication number: 20020019376Abstract: A series of novel steroid derivatives are described. The steroid derivatives are antibacterial agents. The steroid derivatives also act to sensitize bacteria to other antibiotics including erythromycin and novobiocin.Type: ApplicationFiled: August 10, 2001Publication date: February 14, 2002Applicant: Brigham Young University, a Utah corporationInventors: Paul B. Savage, Chunhong Li