Patents by Inventor Thomas Qinxiong Hu

Thomas Qinxiong Hu 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).

  • Kraft pulp yield by heat treatment of polysulphide liquors generated by oxidation
    Publication number: 20020144794
    Abstract: Oxidized white liquor is heat treated to increase the concentration of PSUV measured at 285 or 286 nm or PSVIS measured at 416 nm and the PSUV/PSGR or PSVIS/PSGR ratio, whereby the content of active polysulphide in the total polysulphide is increased which active polysulphide can be exploited to increase pulp yield in Kraft pulping.
    Type: Application
    Filed: January 23, 2002
    Publication date: October 10, 2002
    Inventors: Ronald Peter van Heek, Gilles Marcel Dorris, Victor Charles Uloth, Natalie Page, Thomas Qinxiong Hu, Denys Francois Leclerc