Patents by Inventor George F. Dunn, Jr.

George F. Dunn, Jr. 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).

  • Blood cryopreservation container
    Patent number: 5209745
    Abstract: This invention relates to containers for the cryopreservation of mammalian cells and particularly for the long-term freezing of red blood cell. This invention also relates to methods of manufacturing such containers.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: May 11, 1993
    Inventors: Joseph D. Irr, John D. Walker, George F. Dunn, Jr., Viet X. Nguyen
  • Simplified method for the preparation of human lymphokine activated killer cells
    Patent number: 4808151
    Abstract: A lymphocyte-containing white blood cell fraction obtained by standard leukapheresis, elutriation leukapheresis or standard centrifugation can be used for production of lymphokine activated killer cells by incubation with IL-2. Removal of red blood cells and granulocytes by centrifugation on ficoll is not necessary.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: February 28, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: George F. Dunn, Jr., Joseph D. Irr, Lise N. Halpern
  • Particle separation process
    Patent number: 4708710
    Abstract: A process for separating particles from mixtures containing the particles is disclosed. An adoptive transfer therapy process wherein mononuclear cells are separated from a mixture of blood cells by the process is also disclosed. The process comprises supporting the mixture in a centrifuge chamber; subjecting the chamber to a centrifugal force; and forcing a displacing fluid through the chamber, against the centrifugal force, thereby separating the preselected particles from the mixture. The process is further characterized in that the displacing fluid has a density greater than or equal to the density of the preselected particles.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: November 24, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George F. Dunn, Jr.