Lenovo's acquisition of Motorola Mobility from Google for $2.91 billion in January 2014. Google paid $12.5 billion for Motorola Mobility in 2011. The Moto X model has not sold well in competition with Apple and Samsung smartphones. Google will retain 15,000 of 17,000 patents acquired as part of the Motorola acquisition, patents worth billions of dollars and helping it defend its Android mobile operating system. Google sold Motorola Home which made setup boxes to Arris in 2012 for $2.35 billion. Motorola Mobility had $2.9 billion in cash at the time of the acquisition. In addition Google is retaining a research group led by Regina Dugan working on new technologies.