groupon.jpgIPNews® – Blue Calypso’s newest patent has inspired another round of lawsuits related to electronic coupon technology.  Groupon and Yelp, among others, are the targets of the accusations.

Blue Calypso previously filed a patent lawsuit against Yelp in a related action.  To continue reading, click: Groupon, Yelp Sued for Patent Infringement in Electronic Couponing Wars