Shi, Weidong, Jonathan R. Engelsma, James C. Ferrans, and Mathieu C. Hans. Method of and System for Virtual Mobile Game Session Discovery and Player Matching. US Patent 8,233,916, filed August 16, 2007, and issued July 31, 2012.
Mok, Swee, M., William P. Alberth, John R. Barr, Jonathan R. Engelsma, Steven F. Gillig, and Xiang Xu. Collaborative Searching. US Patent 8,090,732, filed Dec. 16, 2008, and issued January 3, 2012.