Gevo (GEVO -1.8%) shares sink to an all-time low after the U.S. government agreed to review a...

|By:, SA News Editor

Gevo (GEVO -1.8%) shares sink to an all-time low after the U.S. government agreed to review a key patent, responding to a request from Butamax Advanced Biofuels; the two companies are involved in several patent lawsuits. "Re-examinations are part of the normal course of a patent dispute," Gevo says in response.