The wireless communications company had been reportedly backed in a $15.5m round by defence companies Lockheed Martin and Northrop Grumman in 2009.

IPWireless, a wireless communications company reportedly backed by US-based defence companies Lockheed Martin and Northrop Grumman, has been sold to General Dynamics for an undisclosed sum.

IPWireless was acquired in 2007 by NextWave Wireless for at least $150m, but was subsequently sold back to its founders for less than $2m, according to a comprehensive article in Dow Jones Venture Wire, which rounds up the company’s history.

The business subsequently secured $15.5 million in Series A funding in…