Google will maintain ownership of the vast majority of the Motorola Mobility patent portfolio, including current patent applications and invention disclosures. As part of its ongoing relationship with Google, Lenovo will receive a license to this rich portfolio of patents and other intellectual property. Additionally Lenovo will receive over 2,000 patent assets, as well as the Motorola Mobility brand and trademark portfolio."
Source:
http://investor.google.com/releases/2014/0129.html