Patents Represented by Attorney, Agent or Law Firm University of Pittsburgh
  • Carbon dioxide soluble surfactant having two fluoroether CO2-philic tail groups and a head group
    Patent number: 6638749
    Abstract: There is provided a process for the extraction of water soluble biomaterials such as enzymes or proteins into carbon dioxide utilizing certain carbon dioxide-soluble surfactants. Also provided are certain carbon dioxide-soluble surfactants useful in the extraction of proteins. The surfactants are selected from fluoroether sulfate, fluoroether-polyethylene glycol block copolymer, fluoroether-functional sorbitol, and fluoroether dithiocarbamate chelate.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: October 28, 2003
    Assignees: Genencor International, Inc., University of Pittsburgh
    Inventors: Eric J. Beckman, Eliador J. Ghenciu, Nathaniel T. Becker, Landon M. Steele, Alan J. Russell