The patent is one of three on stem cell derivation assigned to Wisconsin Alumni Research Foundation and licensed to Geron Corp. It was challenged by consumer advocacy groups in a PTO inter partes reexamination proceeding.
One of the challengers was also successful recently in the Myriad case challenging gene patenting on Section 101 grounds. A stakeholder in the biotechnology industry suggested that both cases represent a "pushback" against the "land rush" for intellectual property in the field.
Challenge by PUBPAT and Consumer Watchdog.
A patent (7,029,913) was issued April 18, 2006, to James A. Thomson titled "Primate embyronic stem cells," with claims drawn to pluripotent human embryonic stem, or ES, cells derived...