PTAB Wrongly Axed Some Claims In Groupon Case: Fed. Circ.

By Ryan Davis (March 1, 2016, 8:22 PM EST) -- The Federal Circuit on Tuesday affirmed many parts of five Patent Trial and Appeal Board decisions that invalidated numerous claims of five advertising patents that Blue Calypso LLC accuses Groupon Inc. of infringing, but found that the board erred invalidating other claims....

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