Patents by Inventor Shu-Fen Peng

Shu-Fen Peng 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).

  • NANOPARTICLES FOR PROTEIN DRUG DELIVERY
    Publication number: 20120258176
    Abstract: The invention discloses particulate complexes composed of chitosan, poly-glutamic acid, and at least one bioactive agent, wherein equal moles of the positively charged chitosan and the negatively charged poly-glutamic acid substrate form an electrostatic network enabling improved loading the bioactive agent.
    Type: Application
    Filed: May 7, 2012
    Publication date: October 11, 2012
    Inventors: Hsing-Wen Sung, Zi-Xian Liao, Shu-Fen Peng, Hosheng Tu
  • Nanoparticles for protein drug delivery
    Patent number: 8283317
    Abstract: The invention discloses particulate complexes composed of chitosan, poly-glutamic acid, and at least one bioactive agent, wherein equal moles of the positively charged chitosan and the negatively charged poly-glutamic acid substrate form an electrostatic network enabling improved loading the bioactive agent.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: October 9, 2012
    Assignees: GP Medical, Inc., National Tsing Hua University
    Inventors: Hsing-Wen Sung, Zi-Xian Liao, Shu-Fen Peng, Hosheng Tu
  • Nanoparticles for protein drug delivery
    Patent number: 8187570
    Abstract: The invention discloses particulate complexes composed of chitosan, poly-glutamic acid, and at least one bioactive agent, wherein equal moles of the positively charged chitosan and the negatively charged poly-glutamic acid substrate form an electrostatic network enabling improved loading the bioactive agent.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: May 29, 2012
    Assignees: GP Medical, Inc., National Tsing Hua University
    Inventors: Hsing-Wen Sung, Zi-Xian Liao, Shu-Fen Peng, Hosheng Tu
  • Nanoparticles for protein drug delivery
    Patent number: 7879312
    Abstract: The invention discloses the nanoparticles composed of chitosan, poly-glutamic acid, and at least one DNA/RNA or bioactive agent characterized with a positive surface charge and their enhanced permeability for gene delivery and bioactive agent delivery.
    Type: Grant
    Filed: May 23, 2009
    Date of Patent: February 1, 2011
    Assignees: GP Medical, Inc., National Tsing Hua University
    Inventors: Hsing-Wen Sung, Shu-Fen Peng, Hosheng Tu