Patents by Inventor Nancy Webb

Nancy Webb 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).

  • Cloning and expression of transforming growth factor .beta.2
    Patent number: 5221620
    Abstract: cDNA clones coding for TGF-.beta.2 which are used to construct expression vectors capable of directing the high-level expression of mature, biologically active TGF-.beta.2, as well as precursor TGF-.beta.2 forms, in transfected Chinese Hamster Ovary cells (CHO cells) and transfected COS cells are described. CHO and COS transfectants secreting TGF-.beta.2 at high levels are also described. CHO cells transfected with a plasmid vector carrying the complete 414 amino acid simian TGF-.beta.2 precursor secrete approximately 5 .mu.g per ml culture media.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: June 22, 1993
    Assignee: Oncogen
    Inventors: Anthony F. Purchio, Linda Madisen, Nancy Webb