Patents Assigned to Process Biotechnology, Inc.
  • Cellular adsorbents for removal of viral contaminants from blood and complex protein solutions
    Patent number: 4869826
    Abstract: Cellular adsorbents for removing viral contaminants from whole blood and protein solutions are prepared by immobilizing and stabilizing cells or portions thereof cellular receptors for the target contaminants. Removal of the viral contaminants from solution is effected by affinity binding of viral proteins of the contaminant and their corresponding immobilized cellular receptors.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: September 26, 1989
    Assignee: Process Biotechnology, Inc.
    Inventors: Henry Y. Wang, I-Fu Tsao