Patents by Inventor Guigen Zhang

Guigen Zhang 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).

  • Publication number: 20210282849
    Abstract: A flexible suction coagulator is adapted for use with an endoscope. The flexible suction coagulator includes an elongated tubular body, a coagulator adjacent a distal end of that tubular body, at least one suction port and a connection terminal at a proximal end of the tubular body.
    Type: Application
    Filed: March 12, 2021
    Publication date: September 16, 2021
    Inventors: Guigen Zhang, Moamen M. Gabr, Mark A. Fritz
  • Patent number: 10883962
    Abstract: Systems for detecting analytes in electrical double layer nanopore devices and methods of use are provided.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: January 5, 2021
    Assignees: University of Kentucky Research Foundation, Clemson University Research Foundation
    Inventors: Guigen Zhang, Samuel Bearden
  • Patent number: 10229210
    Abstract: Systems, methods, and other embodiments associated with search query task management for search system tuning are described. In one embodiment, a method includes receiving interaction data that describes an interaction with a search system. The search system includes a search engine configured to process search queries to return results that include a ranked set of documents that are relevant to respective search queries. A search query to be used as a basis for search engine tuning is identified based on at least the interaction data. Request data describing a tuning request for the identified search query is transmitted to a search query tuning system. In response to the tuning request for the identified search query, the search query tuning system adds the identified search query to a set of search queries that are candidates for use as a basis for search engine tuning.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: March 12, 2019
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: John Baum, Manish Verma, Katherine W. Ward, Guigen Zhang, Qian Jiang, Rodney Garling, Jr.
  • Publication number: 20180202969
    Abstract: Systems for detecting analytes in electrical double layer nanopore devices and methods of use are provided.
    Type: Application
    Filed: January 19, 2018
    Publication date: July 19, 2018
    Inventors: Guigen ZHANG, Samuel BEARDEN
  • Publication number: 20170169111
    Abstract: Systems, methods, and other embodiments associated with search query task management for search system tuning are described. In one embodiment, a method includes receiving interaction data that describes an interaction with a search system. The search system includes a search engine configured to process search queries to return results that include a ranked set of documents that are relevant to respective search queries. A search query to be used as a basis for search engine tuning is identified based on at least the interaction data. Request data describing a tuning request for the identified search query is transmitted to a search query tuning system. In response to the tuning request for the identified search query, the search query tuning system adds the identified search query to a set of search queries that are candidates for use as a basis for search engine tuning.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 15, 2017
    Inventors: John BAUM, Manish VERMA, Katherine W. WARD, Guigen ZHANG, Qian JIANG, Rodney GARLING, JR.
  • Patent number: 8865402
    Abstract: Provided according to embodiments of the invention are nanostructured surfaces that include a substrate; and an array of metallic nanopillar islands on the substrate, wherein each metallic nanopillar island includes a metal base layer on the substrate and a plurality of metallic nanopillars on the metal base layer, and wherein portions of the substrate between adjacent metallic nanopillar islands are free of the metal base layer. Also provided according to some embodiments of the invention are nanostructured surfaces that include a non-conductive substrate; and at least one nanoelectrode defined within the non-conductive substrate, wherein the at least one nanoelectrode is sized and/or shaped to immobilize an analyte or a probe molecule. Also provided are apparatuses and methods for SERS and detection of analytes or biological binding by EDL capacitance.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: October 21, 2014
    Assignee: Clemson University Research Foundation
    Inventor: Guigen Zhang
  • Patent number: 8860438
    Abstract: Provided according to some embodiments of the present invention are electrical double layer (EDL) capacitive devices that include an insulating substrate defining a nanopore therethrough; a nanopore electrode exposed in a portion of the nanopore; and an electrolyte in contact with the nanopore electrode. Also provided are methods of using EDL capacitive devices according to embodiments of the invention to sequence polynucleotides or other polymers and/or to detect analytes.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: October 14, 2014
    Assignee: Clemson University Research Foundation
    Inventor: Guigen Zhang
  • Patent number: 8453319
    Abstract: The present invention relates to nanopillar arrays that may have relatively large dimensions and relatively large interpillar distances. The present invention also relates to methods of forming the same. In some embodiments of the invention, methods of forming hexagonal nanopillar arrays include forming a base comprising aluminum; forming a hexagonal pattern of pits in the aluminum; anodizing the aluminum to form aluminum oxide comprising a primary hexagonal nanopore array at the positions of the pits in the aluminum; depositing a conductive material into the nanopores of the primary hexagonal nanopore array; and removing the mask and the aluminum oxide to provide the hexagonal nanopillar array.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: June 4, 2013
    Assignee: Clemson University Research Foundation
    Inventor: Guigen Zhang
  • Publication number: 20110053794
    Abstract: Provided according to embodiments of the invention are nanostructured surfaces that include a substrate; and an array of metallic nanopillar islands on the substrate, wherein each metallic nanopillar island includes a metal base layer on the substrate and a plurality of metallic nanopillars on the metal base layer, and wherein portions of the substrate between adjacent metallic nanopillar islands are free of the metal base layer. Also provided according to some embodiments of the invention are nanostructured surfaces that include a non-conductive substrate; and at least one nanoelectrode defined within the non-conductive substrate, wherein the at least one nanoelectrode is sized and/or shaped to immobilize an analyte or a probe molecule. Also provided are apparatuses and methods for SERS and detection of analytes or biological binding by EDL capacitance.
    Type: Application
    Filed: August 26, 2010
    Publication date: March 3, 2011
    Inventor: Guigen Zhang
  • Publication number: 20100326710
    Abstract: The present invention relates to nanopillar arrays that may have relatively large dimensions and relatively large interpillar distances. The present invention also relates to methods of forming the same. In some embodiments of the invention, methods of forming hexagonal nanopillar arrays include forming a base comprising aluminum; forming a hexagonal pattern of pits in the aluminum; anodizing the aluminum to form aluminum oxide comprising a primary hexagonal nanopore array at the positions of the pits in the aluminum; depositing a conductive material into the nanopores of the primary hexagonal nanopore array; and removing the mask and the aluminum oxide to provide the hexagonal nanopillar array.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 30, 2010
    Inventor: Guigen Zhang
  • Publication number: 20100289505
    Abstract: Provided according to some embodiments of the present invention are electrical double layer (EDL) capacitive devices that include an insulating substrate defining a nanopore therethrough; a nanopore electrode exposed in a portion of the nanopore; and an electrolyte in contact with the nanopore electrode. Also provided are methods of using EDL capacitive devices according to embodiments of the invention to sequence polynucleotides or other polymers and/or to detect analytes.
    Type: Application
    Filed: May 11, 2010
    Publication date: November 18, 2010
    Inventor: Guigen Zhang
  • Publication number: 20100066346
    Abstract: This invention presents microstructures enhanced with nanopillars. The invention also provides ways for manufacturing nanopillar-enhanced microstructures. In some embodiments, the invention also provides methods of use for the nanopillar-enhanced microstructures.
    Type: Application
    Filed: March 25, 2009
    Publication date: March 18, 2010
    Applicant: The University of Georgia Research Foundation, Inc.
    Inventors: Guigen Zhang, Venkataramani Anandan, Yeswanth L. Rao, Rajan Gangadharan
  • Publication number: 20090297913
    Abstract: This application provides nanostructure-enhanced stereo-electrodes. The application also provides novel ways to manufacture nanostructure-enhanced electrodes. In some embodiments, the invention also provides methods of use for devices equipped with the nanostructure-enhanced stereo-electrodes.
    Type: Application
    Filed: March 25, 2009
    Publication date: December 3, 2009
    Applicant: The University of Georgia Research Foundation, Inc.
    Inventors: Guigen Zhang, Venkataramani Anandan
  • Publication number: 20090243584
    Abstract: This invention presents microstructures enhanced with nanopillars. The invention also provides a novel way for manufacturing nanopillar-enhanced microstructures, using conventional microfabrication techniques. In some embodiments, the invention also provides methods of use for the nanopillar-enhanced microstructures.
    Type: Application
    Filed: September 11, 2008
    Publication date: October 1, 2009
    Inventors: Guigen Zhang, Venkataramani Anandan, Yeshwanth L. Rao