Patents by Inventor John W. Darnell

John W. Darnell 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).

  • Frozen plasma thawing system
    Patent number: 4486389
    Abstract: A technique and apparatus for thawing a frozen blood plasma unit while maintaining the unit in a dry condition includes a water bath and a special holder which supports a thin plastic bag in which the plasma unit is contained. The holder maintains the bag and the plasma unit submerged in a manner which affords substantial thermal contact between the plasma unit and the water bath.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: December 4, 1984
    Assignee: Cryosan, Inc.
    Inventors: John W. Darnell, Roman Kuzyk