Key stem cell patents revoked
<p class="source">New Scientist Magazine</p>
<p>The examiners said the Wisconsin cells -- based on the work of James Thomson at the University of Wisconsin-Madison -- appeared to be either the same or obvious variations of cells described in previous patents issued to others or published in scientific papers. The decision came as the result of a challenge filed in July 2006 by the US Foundation for Taxpayer and Consumer Rights (FTCR) and the Public Patent Foundation.</p>
