IPNews® – It was bad news for Zillow recently as the patent for its home valuation estimator was severely whittled down by the USPTO, which found the majority of its claims unpatentable.

The  U.S. Patent Trial and Appeal Board made the findings as part of its decision in Microstrategy, Inc. v. Zillow, Inc., which is expected to have negative implications for Zillow in its much publicized lawsuit against Trulia.   Trulia appears armed and ready for a fight, stating: ” If Zillow appeals the Microstrategy ruling and wins, which is unlikely, we have different grounds on which the patent is invalid.”   To continue reading, click:  USPTO Throws Out Most of Zillow’s “Z-Estimate” Patent Claims