Patents by Inventor Sumith R. Wickramasinghe

Sumith R. Wickramasinghe 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).

  • Method for removing tumor cells from tumor cell-contaminated stem cell products
    Publication number: 20010000204
    Abstract: Methods and apparatus for removing tumor cells from tumor cell-contaminated stem cells products are disclosed. In one embodiment, the method relies on an in-line filtration device that includes a tumor cell reduction filter means, preferably comprised of one or more tumor cell reduction filter pads. Preferably, the tumor cell reduction filter means provides at least a ten-fold reduction in filter cells while allowing for at least a 30% recovery of stem cells in a filtered stem cell product.
    Type: Application
    Filed: December 5, 2000
    Publication date: April 12, 2001
    Inventors: Franco Castino, Sumith R. Wickramasinghe
  • Method and apparatus for removing tumor cells from tumor cell-contaminated stem cell products
    Patent number: 6177019
    Abstract: A method for removing tumor cells from tumor cell-contaminated stem cell products is disclosed. One embodiment of the method relies on an in-line filtration device that includes a tumor cell reduction filter means, preferably comprised of one or more tumor cell reduction filter pads. The tumor cell reduction filter means provides at least a ten-fold reduction in tumor cells while allowing for at least a 30% recovery of stem cells in a filtered stem cell product.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: January 23, 2001
    Assignee: HemaSure Inc.
    Inventors: Franco Castino, Sumith R. Wickramasinghe