Patents by Inventor Pi-Wan Cheng

Pi-Wan Cheng 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).

  • Receptor ligand-facilitated delivery of biologically active molecules
    Patent number: 6077834
    Abstract: Disclosed is a delivery system for biologically active molecules or agents which must enter cells to exert their effect. The delivery system comprises a mixture of cationic lipid in combination with a receptor ligand and is particularly suited for intracellular delivery of polynucleotides.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: June 20, 2000
    Inventor: Pi-Wan Cheng