The USPTO has maintained its rejection of claims in Vringo's (VRNG -3%) '420 patent, the company...

|By:, SA News Editor

The USPTO has maintained its rejection of claims in Vringo's (VRNG -3%) '420 patent, the company announces. An initial, non-final rejection had been made last September following a request by Google to re-examine the patent. Vringo says it will appeal the ruling. The USPTO is also re-examining Vringo's '664 patent, for which Google is alleging prior art. (PR)