Patents by Inventor Jason J. Tang

Jason J. Tang 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).

  • High efficiency column crystallizer
    Patent number: 4891191
    Abstract: An improved countercurrent solid-liquid contacting apparatus, and more particularly an improved counter-current crystallizer column is disclosed. The present invention embraces the discover that column efficiency and product purity can be substantially enhanced by reducing axial liquid back-mixing by using stationary solid beds and transport means at spaced intervals along the column length.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: January 2, 1990
    Assignee: Monsanto Company
    Inventors: Don E. Carter, Yung C. Hsu, Jason J. Tang