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USPTO Reverses Decision on WARF Stem Cell Patent

The Board of Appeals and Interferences (BPAI) of the U.S. Patent and Trademark Office issued a decision on April 28, 2010 in the inter partes re-examination of U.S. Patent No. 7,029,913, granted to University of Wisconsin-Madison professor and internationally-recognized stem cell researcher Dr. James Thomson. In the decision, the BPAI rejected the claims of the patent, reversing an earlier determination by a USPTO examiner.