Umbilical-Cord Blood Storage Patents Challenged

Law360, New York (March 8, 2005, 12:00 AM EST) -- A California medical device maker has asked the U.S. Patent & Trademark Office to reexamine two patents at the center of a patent dispute that has rattled the fast-growing industry for umbilical-cord blood storage.

The move comes on the heels of a USPTO ruling earlier this month that overturned a PharmaStem Therapeutics Inc. patent related to the collection and preservation of stem cells.

Now ThermoGenesis Corp., which makes equipment used to store such cells, has asked the government to consider rejecting the claims made in two...
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