Patents by Inventor Willem Eitjes

Willem Eitjes 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).

  • Apparatus for decanting of a blood-plasma layer and a buffy-coat layer from a centrifuge-blood bag
    Patent number: 4663032
    Abstract: A press for driving a plasma layer and a buffy-coat layer in succession out of a centrifuged whole blood bag which has upper and lower press plates between which a clamping element is displaceable, all juxtaposed with a stationary plate so that after displacement to the lower press plate to drive off plasma and operation of the upper press plate to spread the buffy-coat layer in height, the clamping element can be actuated to clamp off the bag between the buffy-coat layer and the red cell concentrate so that advance of the upper press plate can drive off the buffy-coat layer.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: May 5, 1987
    Assignee: NPBI Nederlands Produktielaboratorium voor Bloedtransfusieapparatuur en Infusievloeistoffen B.V.
    Inventors: Johannes A. Loos, Willem Eitjes, Johannes C. G. H. de Bruyn