Mount Hamilton Partners (MHP) [NPE] filed two separate suits against Google and Groupon, alleging that the defendants’ coupon offers infringe a patent related to a system for reducing excess capacity in restaurants during off-peak hours.  MHP filed one prior suit in May 2009 against OpenTable.  Dazhi Chen and Elayna Berean are the named inventors on the patent-in-suit, which was assigned to MHP in March 2006.  12/21, District of Delaware, 1:2011cv01269.