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When executives at Carlsbad, Calif.-based Invitrogen Corp. chose to locate their stem-cell research in Asia recently, they blamed the patents. And today, a California watchdog group, the Foundation for Taxpayer and Consumer Rights of Santa Monica, says it will ask the U.S. Patent and Trademark Office to overturn three patents awarded to James A. Thomson, the Wisconsin researcher who first isolated stem cells from human embryos in 1998.
The broadly worded patents, which cover nearly any use of human embryonic stem cells, are held by the Wisconsin Alumni Research Foundation, a nonprofit group that handles the school's intellectual-property estate, managing a $1.5 billion endowment amassed during 80 years of marketing inventions.
John Simpson, an official at the foundation bringing the challenge, says WARF's efforts to enforce...