The court ruled for Blue Calypso in two of the four substantive issues, the company said, resulting in reinstating several lost claims.
The PTAB granted petitions by Groupon for review over business method patents in December 2013 and January 2014, and found in December 2014 that various claims of Blue Calypso patents were invalid.
The court this week overturned a decision tied to insufficient written description, but upheld the invalidity. The company's eager to get to trial and is looking at other options for appeals, said chief Andrew Levi.
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