Patents by Inventor Dongxin Wang

Dongxin Wang 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).

  • Capillary column and method of making
    Publication number: 20070172960
    Abstract: The present invention concerns a new and useful structure for forming a capillary tube, e.g. for gas chromatography, and methods for forming the capillary tube are described. The capillary tube comprises a tube structure, and a deactivated surface-bonded sol-gel coating on a surface of the tube structure to form a stationary phase coating on that surface of the tube structure. According to the present invention the deactivated stationary phase sol-gel coating enables separation of analytes while minimizing adsorption of analytes on the separation column structure.
    Type: Application
    Filed: August 3, 2006
    Publication date: July 26, 2007
    Inventors: Abdul Malik, Dongxin Wang
  • Solid phase microextraction fiber structure and method of making
    Patent number: 6759126
    Abstract: A solid phase microextraction (SPME) fiber including a fiber and a deactivated surface-bonded sol-gel coating on a portion of the fiber to form a solid phase microextraction coating on the portion of the fiber, wherein the solid-phase microextraction coating is capable of preconcentrating trace organic compounds in various matrices. A sol-gel method of preparing SPME fibers with chemically bonded stationary phase coatings that serve as solvent-free extraction media including the step of chemically bonding the sol-gel stationary phase with the SPME fiber surface during its creation through sol-gel reactions.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: July 6, 2004
    Assignee: University of South Florida
    Inventors: Abdul Malik, Dongxin Wang