Patents by Inventor Narayan Bhattarai

Narayan Bhattarai 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).

  • Nanofibrous conduits for nerve regeneration
    Patent number: 9345486
    Abstract: A hollow fibrous conduit for promoting regeneration of a severed nerve, comprising a first end for coapting the conduit to a first end of a severed nerve and second end for coapting the conduit to a second end of the severed nerve, the hollow fibrous conduit comprising chitosan-poly(caprolactone) fibers. Methods for making the conduit and methods for using the conduit for nerve regeneration.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: May 24, 2016
    Assignee: University of Washington
    Inventors: Miqin Zhang, Narayan Bhattarai
  • NANOPARTICLES FOR BRAIN TUMOR IMAGING
    Publication number: 20150320890
    Abstract: Nanoparticle having a chitosan-polyethylene oxide oligomer copolymer coating, and methods for making and using the nanoparticle are provided. The nanoparticle can have a core that includes a material that imparts magnetic resonance imaging activity to the particle and, optionally, one or more of an associated targeting agent, fluorescent agent, or therapeutic agent.
    Type: Application
    Filed: July 22, 2015
    Publication date: November 12, 2015
    Applicant: University of Washington
    Inventors: Miqin Zhang, Conroy Sun, Omid Veiseh, Narayan Bhattarai
  • NANOFIBROUS CONDUITS FOR NERVE REGENERATION
    Publication number: 20150282811
    Abstract: A hollow fibrous conduit for promoting regeneration of a severed nerve, comprising a first end for coapting the conduit to a first end of a severed nerve and second end for coapting the conduit to a second end of the severed nerve, the hollow fibrous conduit comprising chitosan-poly(caprolactone) fibers. Methods for making the conduit and methods for using the conduit for nerve regeneration.
    Type: Application
    Filed: June 11, 2015
    Publication date: October 8, 2015
    Applicant: UNIVERSITY OF WASHINGTON
    Inventors: Miqin Zhang, Narayan Bhattarai
  • Biodegradable chitosan-PEG compositions and methods of use
    Patent number: 8663686
    Abstract: The present invention provides compositions comprising an interpolymer of chitosan and polyethylene glycol, wherein the interpolymer is a liquid below 25° C. and a gel above 35° C. The present invention also provides methods for using the compositions to deliver drugs to a living body over time.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: March 4, 2014
    Assignee: University of Washington
    Inventors: Miqin Zhang, Narayan Bhattarai, Frederick A. Matsen
  • Alginate-based nanofibers and related scaffolds
    Patent number: 8460692
    Abstract: Alginate nanofibers, scaffolds that include alginate nanofibers, implantable devices that include alginate nanofibers, and methods for making the alginate nanofibers by electrospinning.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: June 11, 2013
    Assignee: University of Washington
    Inventors: Miqin Zhang, Narayan Bhattarai
  • ALGINATE-BASED NANOFIBERS AND RELATED SCAFFOLDS
    Publication number: 20120141558
    Abstract: Alginate nanofibers, scaffolds that include alginate nanofibers, implantable devices that include alginate nanofibers, and methods for making the alginate nanofibers by electrospinning.
    Type: Application
    Filed: February 9, 2012
    Publication date: June 7, 2012
    Applicant: UNIVERSITY OF WASHINGTON
    Inventors: Miqin Zhang, Narayan Bhattarai
  • Alginate-based nanofibers and related scaffolds
    Patent number: 8147858
    Abstract: Alginate nanofibers, scaffolds that include alginate nanofibers, implantable devices that include alginate nanofibers, and methods for making the alginate nanofibers by electrospinning.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: April 3, 2012
    Assignee: University of Washington
    Inventors: Miqin Zhang, Narayan Bhattarai
  • Nanoparticles for brain tumor imaging
    Publication number: 20100260686
    Abstract: Nanoparticle having a chitosan-polyethylene oxide oligomer copolymer coating, and methods for making and using the nanoparticle are provided. The nanoparticle can have a core that includes a material that imparts magnetic resonance imaging activity to the particle and, optionally, one or more of an associated targeting agent, fluorescent agent, or therapeutic agent.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 14, 2010
    Applicant: Washington, University of
    Inventors: Miqin Zhang, Conroy Sun, Omid Veiseh, Narayan Bhattarai
  • NANOFIBROUS CONDUITS FOR NERVE REGENERATION
    Publication number: 20100234863
    Abstract: A hollow fibrous conduit for promoting regeneration of a severed nerve, comprising a first end for coapting the conduit to a first end of a severed nerve and second end for coapting the conduit to a second end of the severed nerve, the hollow fibrous conduit comprising chitosan-poly(caprolactone) fibers. Methods for making the conduit and methods for using the conduit for nerve regeneration.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 16, 2010
    Applicant: WASHINGTON, UNIVERSITY OF
    Inventors: Miqin Zhang, Narayan Bhattarai
  • ALGINATE-BASED NANOFIBERS AND RELATED SCAFFOLDS
    Publication number: 20090087469
    Abstract: Alginate nanofibers, scaffolds that include alginate nanofibers, implantable devices that include alginate nanofibers, and methods for making the alginate nanofibers by electrospinning.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 2, 2009
    Applicant: Washington, University of
    Inventors: Miqin Zhang, Narayan Bhattarai
  • Biodegradable chitosan-peg compositions, and methods of use
    Publication number: 20060251613
    Abstract: The present invention provides compositions comprising an interpolymer of chitosan and polyethylene glycol, wherein the interpolymer is a liquid below 25° C. and a gel above 35° C. The present invention also provides methods for using the compositions to deliver drugs to a living body over time.
    Type: Application
    Filed: May 9, 2005
    Publication date: November 9, 2006
    Inventors: Miqin Zhang, Narayan Bhattarai, Frederick Matsen