Patents by Inventor Swapan K. Roy

Swapan K. Roy 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).

  • Crosslinked hydrogel beads from chitosan
    Patent number: 5770712
    Abstract: A chitosan support material is made with crosslinking and installation of a spacer arm between the chitosan matrix and an epoxy terminal group at the distal end of the spacer arm. Among other things, the installed spacer arm endows the crosslinked chitosan beads with enhanced binding specificity during chromatographic separations.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: June 23, 1998
    Assignees: Virginia Tech Intellectual Properties, Inc., LigoChem, Inc.
    Inventors: Swapan K. Roy, Jason G. Todd, Wolfgang G. Glasser