Patents by Inventor Bill Keng Chang

Bill Keng Chang 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).

  • Publication number: 20130035752
    Abstract: This disclosure relates to an improved arterial-venous graft. In one embodiment, an arterial-venous stent-graft can comprise a tube comprising a first section and a second section, said first section comprising at least fifty percent of said tube. Additionally, the arterial-venous stent-graft can comprise a stent surrounding all of said first section. Additionally, this disclosure relates to a method for placing an arterial-venous stent-graft in a body. Specifically, the method comprises placing an arterial-venous stent-graft in a subcutaneous tunnel, placing a portion of said arterial-venous stent-graft in a vein, wherein said first portion comprises a stent that covers said portion and covers at least fifty percent of said stent-graft, and connecting a second portion of said arterial-venous stent-graft to an artery, further wherein second portion of said arterial-venous stent-graft comprises no stent.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 7, 2013
    Inventor: Bill Keng Chang