Stem cell patents upheld

The US Patent and Trademark Office has upheld the two remaining stem cell patents out of a contested trio held by the Wisconsin Alumni Research Foundation (WARF), according to the final ruling posted last week by the USPTO. The third patent was upheld in a ruling last month (read more linkurl:here);http://www.the-scientist.com/blog/display/54389/ and can still be challenged by appeal. Last week's rulings are final and cannot be appealed. "The patent office has conducted a thoughtful and thoro