Xconomy.com -- Just three months ago, San Diego-based Inovio Biomedical looked like one of the many biotechs with big ambitions that were headed for the dustbin of history. The company has been burning cash for 15 years and it was down to its last $5 million in working capital. Inovio tried to merge with another little biotech company from Pennsylvania for 11 months, before finally closing the deal on June 1.