Vringo Files for IPO

Vringo, a New York-based provider of video ringtone sharing solutions, has filed to raise $64.3 million via an IPO of stock and warrants. The company plans to trade on the Nasdaq, with Maxim Group serving as lead underwriter.

The company reported just $36,000 in revenue for the first nine months of 2009. Shareholders include Warburg Pincus, with a 31.9% ownership stake. www.vringo.com