Gds Technology, Inc.

Janice L Shultz

Surendra K Gupta

Aurora F De Castro

Joseph W Fraser, Jr

Blood separation filter assemblies and methods are provided to quickly and completely separate plasma or serum from whole blood without the need of centrifugation. The filter assemblies and methods have filter materials of a predetermined thickness which are maintained under positive pressure during use. The filter materials have at least one layer of glass fibers having an average fiber diameter ranging from 0.2 .mu.m to 7.0 .mu.m and which are compressed at least 25% in thickness.

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Elkhart, IN, United States of America

Janice L Shultz