Patents by Inventor Chang Guo

Chang Guo 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).

  • Patent number: 9175274
    Abstract: Butyrylcholinesterase (BChE) polypeptide variants of the presently-disclosed subject matter have enhanced catalytic efficiency for (?)-cocaine, as compared to wild-type BChE. Pharmaceutical compositions of the presently-disclosed subject matter include a BChE polypeptide variant having an enhanced catalytic efficiency for (?)-cocaine. A method of the presently-disclosed subject matter for treating a cocaine-induced condition includes administering to an individual an effective amount of a BChE polypeptide variant, as disclosed herein, to lower blood cocaine concentration.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: November 3, 2015
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Fang Zheng, Wenchao Yang
  • Patent number: 9081736
    Abstract: This invention relates to representations of prostaglandin synthase three-dimensional structures. Such representations are suitable for designing agents that modulate the activity of the enzyme by binding to the substrate binding domain.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: July 14, 2015
    Assignee: The University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Xiaoqin Huang, Adel Hamza
  • Publication number: 20150051866
    Abstract: A method for optimizing phasor measurement unit placement includes two phase, calculating a degree of each node of a power system; selecting a node with maximum degree as a center and propagate to the entire power system so as to form a spanning tree; selecting a feasible power dominating set (PDS) of minimum cardinality for the spanning tree in the Phase I. In phase II, use the Artificial Bees Colony Algorithm.
    Type: Application
    Filed: November 1, 2013
    Publication date: February 19, 2015
    Applicant: National Tsing Hua University
    Inventors: Chia-Chi CHU, Tsung-Jung HSIEH, Jian-Hong LIU, Xian-Chang Guo
  • Patent number: 8945901
    Abstract: Butyrylcholinesterase (BChE) polypeptide variants of the presently-disclosed subject matter have enhanced catalytic efficiency for (?)-cocaine, as compared to wild-type BChE. Pharmaceutical compositions of the presently-disclosed subject matter include a BChE polypeptide variant having an enhanced catalytic efficiency for (?)-cocaine. A method of the presently-disclosed subject matter for treating a cocaine-induced condition includes administering to an individual an effective amount of a BChE polypeptide variant, as disclosed herein, to lower blood cocaine concentration.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: February 3, 2015
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Fang Zheng, Wenchao Yang, Liu Xue, Shurong Hou
  • Patent number: 8846887
    Abstract: Butyrylcholinesterase (BChE) polypeptide variants of the presently-disclosed subject matter have enhanced catalytic efficiency for (?)-cocaine, as compared to wild-type BChE. Pharmaceutical compositions of the presently-disclosed subject matter include a BChE polypeptide variant having an enhanced catalytic efficiency for (?)-cocaine. A method of the presently-disclosed subject matter for treating a cocaine-induced condition includes administering to an individual an effective amount of a BChE polypeptide variant, as disclosed herein, to lower blood cocaine concentration.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: September 30, 2014
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Fang Zheng, Wenchao Yang
  • Patent number: 8835150
    Abstract: A novel computational method and generation of mutant butyrylcholinesterase for cocaine hydrolysis is provided. The method includes molecular modeling a possible BChE mutant and conducting molecular dynamics simulations and hybrid quantum mechanical/molecular mechanical calculations thereby providing a screening method of possible BChE mutants by predicting which mutant will lead to a more stable transition state for a rate determining step. Site-directed mutagenesis, protein expression, and protein activity is conducted for mutants determined computationally as being good candidates for possible BChE mutants, i.e., ones predicted to have higher catalytic efficiency as compared with wild-type BChE. In addition, mutants A199S/A328W/Y332G, A199S/F227A/A328W/Y332G, A199S/S287G/A328W/Y332G, A199S/F227A/S287G/A328W/Y332G, and A199S/F227A/S287G/A328W/E441D all have enhanced catalytic efficiency for (?)-cocaine compared with wild-type BChE.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: September 16, 2014
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Hoon Cho, Hsin-Hsiung Tai
  • Publication number: 20130337605
    Abstract: A substrate plasma-processing apparatus for plasma-processing a surface of an electrode of an organic light emitting device. The substrate plasma-processing apparatus may adjust the distance between a first electrode and a substrate and adjust the distance between a second electrode and the substrate.
    Type: Application
    Filed: August 21, 2013
    Publication date: December 19, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Tae-Wook KANG, Ou-Hyun Kim, Chang-Soon Jl, Hyun-Lae Cho, Chang-Guo An, Jeong-Yeol Lee, Jae-Mork Park
  • Patent number: 8592193
    Abstract: Butyrylcholinesterase (BChE) polypeptide variants of the presently-disclosed subject matter have enhanced catalytic efficiency for (?)-cocaine, as compared to wild-type BChE. Pharmaceutical compositions of the presently-disclosed subject matter include a BChE polypeptide variant having an enhanced catalytic efficiency for (?)-cocaine. A method of the presently-disclosed subject matter for treating a cocaine-induced condition includes administering to an individual an effective amount of a BChE polypeptide variant, as disclosed herein, to lower blood cocaine concentration.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: November 26, 2013
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Fang Zheng, Wenchao Yang, Liu Xue, Shurong Hou
  • Publication number: 20130289456
    Abstract: A garment based airway clearance system for mobilizing secretions in a patient's airway and related methods are disclosed. The garment based airway clearance system comprises a therapy chamber mounted substantially around the circumference of the garment such that inflation of the therapy chamber causing a compressive force to be applied on the thorax or chest of the wearer of the garment.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 31, 2013
    Inventors: Mike Yang Chang Guo, Boon Khai Ang, Beng Leong Toh
  • Publication number: 20130228174
    Abstract: A respiratory therapy device has both a standard positive expiratory pressure (PEP) device and an oscillatory PEP device packaged together. A manually operable member is movable to select which of the standard and oscillatory PEP device is placed in communication with a patient's airway. A nebulizer connector may also be provided for connection of a nebulizer.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 5, 2013
    Inventors: Mike Yang Chang Guo, Soo Yao Jee, Radhakrishnan Nair Oravielil Kamalashi
  • Patent number: 8399644
    Abstract: A novel computational method and generation of mutant butyrylcholinesterase for cocaine hydrolysis is provided. The method includes molecular modeling a possible BChE mutant and conducting molecular dynamics simulations and hybrid quantum mechanical/molecular mechanical calculations thereby providing a screening method of possible BChE mutants by predicting which mutant will lead to a more stable transition state for a rate determining step. Site-directed mutagenesis, protein expression, and protein activity is conducted for mutants determined computationally as being good candidates for possible BChE mutants, i.e., ones predicted to have higher catalytic efficiency as compared with wild-type BChE. In addition, mutants A199S/A328W/Y332G, A199S/F227A/A328W/Y332G, A199S/S287G/A328W/Y332G, A199S/F227A/S287G/A328W/Y332G, and A199S/F227A/S287G/A328W/E441D all have enhanced catalytic efficiency for (?)-cocaine compared with wild-type BChE.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: March 19, 2013
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Hoon Cho, Hsin-Hsiung Tai
  • Patent number: 8318156
    Abstract: Embodiments of the invention disclosed herein generally relate to anti-cocaine therapeutics. Specifically, some embodiments of the invention relate to highly efficient, thermostable, and long-lasting cocaine esterase (CocE) mutants that can protect against the toxic and reinforcing effects of cocaine in subjects. Provided herein are mutant CocE polypeptides displaying thermostable esterase activity. Also provided are methods of treating cocaine-induced conditions in a subject in need via administration of mutant CocE as well as methods for high-throughput screening of candidate esterase polypeptides.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: November 27, 2012
    Assignees: The Trustees of Columbia University in the City of New York, The Regents of the University of Michigan, University of Kentucky Research Foundation
    Inventors: Donald W Landry, Joanne MacDonald, Shi-Xian Deng, Chang-Guo Zhan, Daquan Gao, James H. Woods, Roger K. Sunahara, Diwahar L. Narasimhan, Victor Yang, Mei-Chuan Holden Ko, John J. Tesmer, Tien-Yi Lee, Young Min Kwon
  • Patent number: 8206703
    Abstract: Butyrylcholinesterase (BChE) polypeptide variants of the presently-disclosed subject matter have enhanced catalytic efficiency for (?)-cocaine, as compared to wild-type BChE. Pharmaceutical compositions of the presently-disclosed subject matter include a BChE polypeptide variant having an enhanced catalytic efficiency for (?)-cocaine. A method of the presently-disclosed subject matter for treating a cocaine-induced condition includes administering to an individual an effective amount of a BChE polypeptide variant, as disclosed herein, to lower blood cocaine concentration.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: June 26, 2012
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Fang Zheng, Wenchao Yang
  • Patent number: 8193327
    Abstract: A novel computational method and generation of mutant butyrylcholinesterase for cocaine hydrolysis is provided. The method includes molecular modeling a possible BChE mutant and conducting molecular dynamics simulations and hybrid quantum mechanical/molecular mechanical calculations thereby providing a screening method of possible BChE mutants by predicting which mutant will lead to a more stable transition state for a rate determining step. Site-directed mutagenesis, protein expression, and protein activity is conducted for mutants determined computationally as being good candidates for possible BChE mutants, i.e., ones predicted to have higher catalytic efficiency as compared with wild-type BChE. In addition, mutants A199S/A328W/Y332G, A199S/F227A/A328W/Y332G, A199S/S287G/A328W/Y332G, A199S/F227A/S287G/A328W/Y332G, and A199S/F227A/S287G/A328W/E441D all have enhanced catalytic efficiency for (?)-cocaine compared with wild-type BChE.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: June 5, 2012
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Hoon Cho, Hsin-Hsiung Tai
  • Patent number: 8066883
    Abstract: Methods are described for removing aluminum from a solution using novel di- and tripodal compounds as chelators.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: November 29, 2011
    Assignee: University of Kentucky Research Foundation
    Inventors: Robert A. Yokel, Wesley R. Harris, Christopher D. Spilling, Chang-Guo Zhan
  • Publication number: 20110288844
    Abstract: This invention relates to representations of prostaglandin synthase three-dimensional structures. Such representations are suitable for designing agents that modulate the activity of the enzyme by binding to the substrate binding domain.
    Type: Application
    Filed: April 1, 2011
    Publication date: November 24, 2011
    Applicant: The University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Xiaoqin Huang, Adel Hamza
  • Publication number: 20110168636
    Abstract: Methods are described for removing aluminum from a solution using novel di- and tripodal compounds as chelators.
    Type: Application
    Filed: March 21, 2011
    Publication date: July 14, 2011
    Inventors: Robert A. Yokel, Wesley R. Harris, Christopher D. Spilling, Chang-Guo Zhan
  • Patent number: 7932326
    Abstract: Novel di- and tripodal compounds useful as chelators, intermediates for their production and a method for treating an aqueous solution to remove trivalent metal ions are presented.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: April 26, 2011
    Assignee: The University of Kentucky Research Foundation
    Inventors: Robert A. Yokel, Wesley R. Harris, Christopher D. Spilling, Chang-Guo Zhan
  • Patent number: 7919082
    Abstract: A novel computational method and generation of mutant butyrylcholinesterase for cocaine hydrolysis is provided. The method includes molecular modeling a possible BChE mutant and conducting molecular dynamics simulations and hybrid quantum mechanical/molecular mechanical calculations thereby providing a screening method of possible BChE mutants by predicting which mutant will lead to a more stable transition state for a rate determining step. Site-directed mutagenesis, protein expression, and protein activity is conducted for mutants determined computationally as being good candidates for possible BChE mutants, i.e., ones predicted to have higher catalytic efficiency as compared with wild-type BChE. In addition, mutants A199S/A328W/Y332G, A199S/F227A/A328W/Y332G, A199S/S287G/A328W/Y332G, A199S/F227A/S287G/A328W/Y332G, and A199S/F227A/S287G/A328W/E441D all have enhanced catalytic efficiency for (?)-cocaine compared with wild-type BChE.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: April 5, 2011
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Hoon Cho, Hsin-Hsiung Tai
  • Patent number: 7892537
    Abstract: Butyrylcholinesterase (BChE) polypeptide variants of the presently-disclosed subject matter have enhanced catalytic efficiency for (?)-cocaine, as compared to wild-type BChE. Pharmaceutical compositions of the presently-disclosed subject matter include a BChE polypeptide variant having an enhanced catalytic efficiency for (?)-cocaine. A method of the presently-disclosed subject matter for treating a cocaine-induced condition includes administering to an individual an effective amount of a BChE polypeptide variant, as disclosed herein, to lower blood cocaine concentration.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: February 22, 2011
    Assignee: University of Kentucky Research Foundation
    Inventors: Chang-Guo Zhan, Fang Zheng, Wenchao Yang