Patents by Inventor Sing-Yian Chew

Sing-Yian Chew 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).

  • Therapeutic Electrospun Fiber Compositions
    Publication number: 20100303881
    Abstract: The instant invention provides electrospun fiber compositions comprising one or more polymers and one or more biologically active agents. In specific embodiments, the biologically active agents are nerve growth factors. In certain embodiments, the electrospun fiber compositions comprising one or more biologically active agents are on the surface of a film, or a tube. The tubes comprising the electrospun fiber compositions of the invention can be used, for example, as nerve guide conduits.
    Type: Application
    Filed: May 4, 2006
    Publication date: December 2, 2010
    Applicant: The John Hopkins University
    Inventors: Ahmet Hoke, Kam W. Leong, Sing Yian Chew, Ruifa Mi
  • COAXIAL ELECTROSPUN FIBERS AND STRUCTURES AND METHODS OF FORMING THE SAME
    Publication number: 20100055154
    Abstract: Nanofibers and microfibers having a core and a polymer shell surrounding the core are provided. The shell includes a plurality of channels that extend from an outer shell surface to the core, and one or more agents, such as pharmacological materials, proteins, viruses, plasmid DNA, bacterial cells, drug-loaded nanoparticles, are encapsulated within the core. The one or more agents discharge from the core through the channels at a controlled rate. The channels are formed by porogen material within the polymer shell.
    Type: Application
    Filed: July 18, 2007
    Publication date: March 4, 2010
    Inventors: I-Chien Liao, Kam W. Leong, Sing-Yian Chew