Patents by Inventor Xiping Ni

Xiping Ni 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).

  • Copolymers
    Patent number: 10465147
    Abstract: Described herein are copolymers comprising at least one first water-soluble monomeric unit, at least one second water-soluble monomeric unit, and at least one monomeric unit containing a basic residue.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: November 5, 2019
    Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Jun Li, Zhongxing Zhang, Xian Jun Loh, Xiping Ni
  • COPOLYMERS
    Publication number: 20130095054
    Abstract: Described herein are copolymers comprising at least one first water-soluble monomeric unit, at least one second water-soluble monomeric unit, and at least one monomeric unit containing a basic residue.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 18, 2013
    Inventors: Jun LI, Zhongxing ZHANG, Xian Jun LOH, Xiping NI
  • Biodegradable triblock copolymers, synthesis methods therefore, and hydrogels and biomaterials made there from
    Publication number: 20080057128
    Abstract: A drug delivery system that includes micelles formed from an amphiphilic copolymer that includes an A polymer block comprising a poly(alkylene oxide) and a B polymer block comprising a poly(hydroxyalkanoate), and a therapeutically effective amount of at least one therapeutic agent intimately contained within the micelles. In one preferred embodiment of the invention, the A polymer block is poly(ethylene oxide) (PEO) and the B polymer block is poly[(R)-3-hydroxybutyrate] (PHB), and the copolymer is the triblock ABA copolymer PEO-PHB-PEO. A method of synthesizing the amphiphilic triblock copolymer is also provided.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 6, 2008
    Inventors: Jun Li, Xu Li, Xiping Ni, Kam Leong
  • Biodegradable triblock copolymers, synthesis methods therefore, and hydrogels and biomaterials made there from
    Patent number: 7297348
    Abstract: A drug delivery system that includes a hydrogel formed from cyclodextrin and an amphiphilic copolymer that includes an A polymer block comprising a poly(alkylene oxide) and a B polymer block comprising a poly(hydroxyalkanoate), and a therapeutically effective amount of at least one therapeutic agent intimately contained within the hydrogel. In one preferred embodiment of the invention, the A polymer block is poly(ethylene oxide) (PEO) and the B polymer block is poly[(R)-3-hydroxybutyrate] (PHB), and the copolymer is the triblock ABA copolymer PEO-PHB-PEO. A method of synthesizing the amphiphilic triblock copolymer is also provided.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: November 20, 2007
    Assignees: Omeros Corporation, Institute of Materials Research and Engineering
    Inventors: Jun Li, Xu Li, Xiping Ni, Kam W. Leong
  • Biodegradable triblock copolymers, synthesis methods therefore, and hydrogels and biomaterials made there from
    Publication number: 20040072799
    Abstract: A drug delivery system that includes a hydrogel formed from cyclodextrin and an amphiphilic copolymer that includes an A polymer block comprising a poly(alkylene oxide) and a B polymer block comprising a poly(hydroxyalkanoate), and a therapeutically effective amount of at least one therapeutic agent intimately contained within the hydrogel. In one preferred embodiment of the invention, the A polymer block is poly(ethylene oxide) (PEO) and the B polymer block is poly[(R)-3-hydroxybutyrate] (PHB), and the copolymer is the triblock ABA copolymer PEO-PHB-PEO. A method of synthesizing the amphiphilic triblock copolymer is also provided.
    Type: Application
    Filed: July 18, 2003
    Publication date: April 15, 2004
    Applicants: Omeros Corporation, Institute of Materials Research and Engineering
    Inventors: Jun Li, Xu Li, Xiping Ni, Kam W. Leong