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USPTO Office Action Rejects Claims Of Umbilical-Cord Patents

Law360 (May 2, 2006, 12:00 AM EDT) -- In a move that could bode well for biotechnology company ViaCell Inc. in a long-running battle between umbilical-cord blood banks, the U.S. Patent and Trademark Office has issued a first office action rejecting all of the claims of two patents held by rival PharmaStem Therapeutics Inc., according to a ViaCell press release.

The patents, which cover the collection, cryopreservation and storage of hematopoietic stem cells from umbilical-cord blood, have been a bone of contention between the companies since 2002.

Nicholas Didier, chief executive officer of PharmaStem,...
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