Patents by Inventor Stephen T. Toy

Stephen T. Toy 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).

  • Separation and recovery of B and T lymphocytes
    Patent number: 4256588
    Abstract: A process for the separation of B and T lymphocytes comprising passing a suspension of a mixture over a bed of synthetic polymer granules whereby the B leukocytes adhere to the granules and the T lymphocytes pass through the bed.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: March 17, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Harvey H. Hoehn, Stephen T. Toy