Patents Examined by M B. Marvich
  • Cellular targeting poly(ethylene glycol)-grafted polymeric gene carrier
    Patent number: 6586524
    Abstract: The present invention relates to cationic polymeric conjugates and methods of preparing and using them as gene carriers. The cationic polymeric conjugates comprise a poly(ethylene glycol) (PEG) grafted cationic polymer and a targeting moiety(TM), wherein 0.1 to 10 mole percent of the cationic groups of the cationic polymer are substituted with PEG-TM.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: July 1, 2003
    Assignee: Expression Genetics, Inc.
    Inventor: Kazuyoshi Sagara