Patents by Inventor Xiang-Fu Wu

Xiang-Fu Wu 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).

  • Purification of hemoglobin and methemoglobin by bioselective elution
    Patent number: 5115100
    Abstract: A method for purifying hemoglobin, mixed with other proteins is described, wherein the mixture is contacted with an ion exchange matrix so that the hemoglobin is adsorbed to it. The matrix is washed to remove unadsorbed components, and the hemoglobin is then selectively eluted using a ligand which specifically binds the hemoglobin causing it to desorb from the matrix. The method can also be used to effect reduction of methemoglobin to hemoglobin on an ion exchange matrix followed by selective elution to achieve purification. The method can also be used to purify methemoglobin.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: May 19, 1992
    Assignee: Kinetic Investments Limited
    Inventors: Xiang-Fu Wu, Jeffrey T. Wong