Patents by Inventor Iou-Iou Sytwu

Iou-Iou Sytwu 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).

  • Synthetic vasoactive intestinal peptide analogs
    Patent number: 4734400
    Abstract: Novel vasoactive intestinal peptide analogs containing substitutions of appropriately selected amino acids at specific positions of the VIP molecule, with potent sustained bronchodilatory activity without cardiovascular side effects.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: March 29, 1988
    Assignee: Hoffmann-La Roche Inc.
    Inventors: David R. Bolin, Johannes A. Meienhofer, Iou-Iou Sytwu
  • Synthetic vasoactive intestinal peptide analogs
    Patent number: 4605641
    Abstract: Novel vasoactive intestinal peptide analogs containing substitutions of appropriately selected amino acids at specific positions of the VIP molecule, with potent sustained bronchodilatory activity without cardiovascular side effects.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: August 12, 1986
    Assignee: Hoffmann-La Roche Inc.
    Inventors: David R. Bolin, Johannes A. Meienhofer, Iou-Iou Sytwu