SellerBid [NPE] filed suit against Groupon, OpenTable, Hungry Machine, and Buywithme over two patents purportedly related to location-based offers. This is SellerBid’s first patent suit. The plaintiff holds four issued US patents that were assigned to SellerBid between 2006 and 2009 by the inventors. 7/20, Eastern District of Virginia, 1:2011cv00768.
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