Patents by Inventor Duy H. Hua

Duy H. Hua 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: 20230279170
    Abstract: Synthesis of chiral polyvinylpyrrolidinone (CSPVP) compounds, complexes of CSPVP with a core species, such as a bimetallic nanocluster catalyst, and selective C—H bond oxidation reactions utilizing such complexes are disclosed. These reaction products can be used as reagents in the synthesis of complex organic molecules, such as bioactive products, and C—H bond oxidation of complex molecules including various drugs and natural products.
    Type: Application
    Filed: March 2, 2023
    Publication date: September 7, 2023
    Inventor: Duy H. Hua
  • Publication number: 20220349880
    Abstract: An electrochemical method for measuring the activity of biomarkers using microelectrode arrays functionalized with peptide consensus sequences and redox reporter moieties. Contact of the arrays with a biological sample containing one or more target biomarkers results in cleavage of the peptides and changes the electric current across the array in a quantifiable manner indicating not just the presence of the target biomarker in the sample, but its activity.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 3, 2022
    Inventors: Jun Li, Duy H. Hua, Morgan James Anderson, Jessica Erin Koehne, Meyya Meyyappan
  • Publication number: 20220204447
    Abstract: Chiral polyvinylpyrrolidinone (CSPVP), complexes of CSPVP with a core species, such as a bimetallic nanocluster catalyst, and enantioselective oxidation reactions utilizing such complexes are disclosed. The catalytic complexes have exhibited the ability to achieve reaction products have a very high degree of optical purifies. These reaction products can be used as reagents in the synthesis of complex organic molecules, such as bioactive products, and C—H bond oxidation of complex molecules including various drugs and natural products.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 30, 2022
    Inventor: Duy H. Hua
  • Patent number: 10906033
    Abstract: Chiral polyvinylpyrrolidinone (CSPVP), complexes of CSPVP with a core species, such as a metallic nanocluster catalyst, and enantioselective oxidation reactions utilizing such complexes are disclosed. The CSPVP complexes can be used in asymmetric oxidation of diols, enantioselective oxidation of alkenes, and carbon-carbon bond forming reactions, for example. The CSPVP can also be complexed with biomolecules such as proteins, DNA, and RNA, and used as nanocarriers for siRNA or dsRNA delivery.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: February 2, 2021
    Assignee: Kansas State University Research Foundation
    Inventor: Duy H. Hua
  • Publication number: 20200306737
    Abstract: Chiral polyvinylpyrrolidinone (CSPVP), complexes of CSPVP with a core species, such as a metallic nanocluster catalyst, and enantioselective oxidation reactions utilizing such complexes are disclosed. The CSPVP complexes can be used in asymmetric oxidation of diols, enantioselective oxidation of alkenes, and carbon-carbon bond forming reactions, for example. The CSPVP can also be complexed with biomolecules such as proteins, DNA, and RNA, and used as nanocarriers for siRNA or dsRNA delivery.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 1, 2020
    Inventor: Duy H. Hua
  • Patent number: 9802962
    Abstract: Tricyclic pyrone compounds having high oral bioavailability, excellent blood-brain barrier permeability, and low toxicity are presented. Administration of the compounds to Alzheimer's Disease transgenic models resulted in substantially reduced soluble and insoluble A? species in the brain without affecting general behavior and motor coordination. Furthermore, in addition to blocking the toxicity and formation of both intraneuronal and extracellular A? aggregates, the compounds also increase cellular cholesterol efflux, restore axonal trafficking, and enhance hippocampal synaptic plasticity.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 31, 2017
    Assignees: KANSAS STATE UNIVERSITY RESEARCH FOUNDATION, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, A CALIFORNIA CORPORATION, AFASCI, INC.
    Inventors: Duy H Hua, Lee-way Jin, Izumi Maezawa, Xinmin Xie
  • Publication number: 20150119406
    Abstract: Tricyclic pyrone compounds having high oral bioavailability, excellent blood-brain barrier permeability, and low toxicity are presented. Administration of the compounds to Alzheimer's Disease transgenic models resulted in substantially reduced soluble and insoluble A? species in the brain without affecting general behavior and motor coordination. Furthermore, in addition to blocking the toxicity and formation of both intraneuronal and extracellular A? aggregates, the compounds also increase cellular cholesterol efflux, restore axonal trafficking, and enhance hippocampal synaptic plasticity.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 30, 2015
    Inventors: Duy H. Hua, Lee-way Jin, Izumi Maezawa, Xinmin Xie
  • Patent number: 8980951
    Abstract: Bicyclic sesquiterpene compounds exhibiting antifungal characteristics are formulated into antifungal compositions for use in the treatment of fungal infections in humans, animals, and plants. Particularly, sesquiterpene alcohols derived from drimane have been discovered to possess broad-spectrum antifungal characteristics. Exemplary antifungal sesquiterpene compounds include albicanol and drimenol, which have been shown effective against a number of pathogenic fungi.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: March 17, 2015
    Assignee: Kansas State University Research Foundation
    Inventors: Govindsamy Vediyappan, Duy H. Hua
  • Patent number: 8809368
    Abstract: This invention relates to novel quinoline compounds which affect gap junction activity. Also provided are methods of using such compounds and compositions containing the compounds to treat gap junction disorders.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: August 19, 2014
    Assignee: Kansas State University Research Foundation
    Inventors: Duy H. Hua, Dolores J. Takemoto, Thu Nguyen
  • Publication number: 20140135404
    Abstract: Bicyclic sesquiterpene compounds exhibiting antifungal characteristics are formulated into antifungal compositions for use in the treatment of fungal infections in humans, animals, and plants. Particularly, sesquiterpene alcohols derived from drimane have been discovered to possess broad-spectrum antifungal characteristics. Exemplary antifungal sesquiterpene compounds include albicanol and drimenol, which have been shown effective against a number of pathogenic fungi.
    Type: Application
    Filed: January 21, 2014
    Publication date: May 15, 2014
    Applicant: Kansas State University Research Foundation
    Inventors: Govindsamy Vediyappan, Duy H. Hua
  • Patent number: 7935726
    Abstract: Provided are compounds of formula IA or IB: wherein R1 and R8 are independently optionally substituted hydrocarbyl groups; wherein (a) R1 contains a carbonyl group and a phenyl group, (b) R8 contains an optionally substituted adenine group, or (c) R8 contains an alkenyl group with from two to six carbon atoms; R10 is H, —OH, —OR or ?O; R6 is selected from the group consisting of: H, OH, alkyl, alkenyl, alkynyl, an aromatic ring system, amino, sulfhydryl, sulfonyl, NH2 and OCOR; R2 is selected from the group consisting of: H, —OH and lower alkyl; R is H or an optionally substituted hydrocarbyl group, and pharmaceutically acceptable salts or esters of the foregoing, as well as isomers thereof.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: May 3, 2011
    Assignee: Kansas State University Research Foundation
    Inventor: Duy H. Hua
  • Publication number: 20110008304
    Abstract: The present invention is related to the use of cells, such as stem cells or immune system cells, to deliver nanogels comprising an active agent to a desired site in the body. The present invention utilizes cells as a delivery system for active agents that are difficult to deliver, such as active agents with poor solubility, that degrade easily, or that are toxic to the body. The nanogels are preferably non-toxic and can optionally include a lytic agent to program apoptosis of the cell to deliver the nanogel and active agent to a desired sire within the body.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 13, 2011
    Applicant: KANSAS STATE UNIVERSITY RESEARCH FOUNDATION
    Inventors: Deryl Troyer, Duy H. Hua
  • Publication number: 20100222432
    Abstract: Methods to prepare synthetic carbon nanotubes having controllable properties and synthetic carbon nanotubes having controllable properties are provided. The properties which are controllable using the methods provided here include independently and in combination: diameter, length, identity and number of functional groups present and identity and number of heteroatoms present.
    Type: Application
    Filed: August 10, 2006
    Publication date: September 2, 2010
    Inventor: Duy H. Hua
  • Publication number: 20090143425
    Abstract: This invention relates to novel quinoline compounds which affect gap junction activity. Also provided are methods of using such compounds and compositions containing the compounds to treat gap junction disorders.
    Type: Application
    Filed: October 28, 2008
    Publication date: June 4, 2009
    Applicant: KANSAS STATE UNIVERSITY RESEARCH FOUNDATION
    Inventors: Duy H. HUA, Dolores J. TAKEMOTO, Thu NGUYEN
  • Patent number: 6916824
    Abstract: Water-soluble, cell permeable aldose reductase inhibitors are presented. These compounds prevent the effects of galactosemia in patients. The compounds prevent both the accumulation of polyols and the change in levels of protein kinase C gamma observed during diabetes and galactosemia.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: July 12, 2005
    Assignee: Kansas State University Research Foundation
    Inventors: Duy H. Hua, Dolores J. Takemoto, Alan Brightman, Bradley W. Fenwick
  • Patent number: 6727277
    Abstract: A class of novel compounds is described for use in affecting lymphatic absorption of cholesterol. Compounds of particular interest are defined by Formula I: or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: April 27, 2004
    Assignee: Kansas State University Research Foundation
    Inventors: Duy H. Hua, Sung I. Koo, Sang K. Noh
  • Patent number: 6384045
    Abstract: This invention provides cancer-active tricyclic and tetracyclic oxypyrones and a method of synthesizing these compounds. Preferred compounds have aryl groups at the 3-position of the oxypyrone ring. The tricyclic oxypyrone synthetic method is a simple condensation reaction of pyrones with cyclohexenecarboxaldehydes, providing high yields and using few steps. The tetracyclic oxypyrone synthetic method is a simple condensation reaction of carvones with pyrones.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: May 7, 2002
    Assignee: Kansas State University Research Foundation
    Inventors: Duy H. Hua, Jean-Pierre Perchellet
  • Patent number: 5958970
    Abstract: This invention provides cancer-active tricyclic and tetracyclic oxypyrones and a method of synthesizing these compounds. Preferred compounds have aryl groups at the 3-position of the oxypyrone ring. The tricyclic oxyprone synthetic method is a simple condensation reaction of pyrones with cyclohexenecarboxaldehydes, providing high yields and using few steps. The tetracyclic oxypyrone synthetic method is a simple condensation reaction of carvones with pyrones.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: September 28, 1999
    Assignee: Kansas State University Research Foundation
    Inventors: Duy H. Hua, Jean-Pierre Perchellet