Patents by Inventor Xiaohu Xia

Xiaohu Xia 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: 7601704
    Abstract: A method for synthesizing uniformly sized hyaluronic acid (“HA”) particles that are substantially free from oil and surfactant contaminants. The method comprises crosslinking HA chains with 1-ethyl-3-(3-dimethlyaminopropyl) carbodiimide hydrochloride (“EDAC”) and adipic acid dihydrazide in a water/acetone mixture.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: October 13, 2009
    Assignee: University of North Texas
    Inventors: Zhibing Hu, Xiaohu Xia, Liping Tang
  • Publication number: 20080145477
    Abstract: A chewing gum comprises a primary chewing gum composition comprising gum base, a sweetener and a flavoring agent and a food acceptable delayed-release modification agent. The delayed-release modification agent reacts with the primary chewing gum composition after a chewed cud of the gum composition is formed, causing the primary gum to exhibit increased environmental acceptability after the chewed cud is discarded.
    Type: Application
    Filed: January 29, 2008
    Publication date: June 19, 2008
    Inventors: Chungsea A. Shen, Armando J. Castro, Michael Catizone, Bruno Padovani, David G. Barkalow, Xiaohu Xia, Michael S. Haas, Eric J. Dowd
  • Publication number: 20070116765
    Abstract: An aqueous dispersion of hydrogel nanoparticles and methods of making the aqueous dispersion of hydrogel nanoparticless having an interpenetrating polymer network (“IPN”) are described. The uniformed sized mono-disperse IPN nanoparticles have inverse thermo gelation properties that allow therapeutic medications to be uniformly distributed in a liquid form of the aqueous dispersion of hydrogel nanoparticles. Such medications can then be released from a solid form of the aqueous dispersion of hydrogel nanoparticles in time dependant manor.
    Type: Application
    Filed: December 9, 2004
    Publication date: May 24, 2007
    Inventors: Zhibing Hu, Xiaohu Xia
  • Publication number: 20060040892
    Abstract: A method for synthesizing uniformly sized hyaluronic acid (“HA”) particles that are substantially free from oil and surfactant contaminants. The method comprises crosslinking HA chains with 1-ethyl-3-(3-dimethlyaminopropyl) carbodiimide hydrochloride (“EDAC”) and adipic acid dihydrazide in a water/acetone mixture.
    Type: Application
    Filed: November 3, 2004
    Publication date: February 23, 2006
    Applicant: University of North Texas
    Inventors: Zhibing Hu, Xiaohu Xia, Liping Tang