After a prolonged ten-year litigation, the Federal Circuit sided with ParkerVision, emphasizing the district court's flawed collateral estoppel analysis and affirming ParkerVision's appeal on all contested points.
The background of this case is marked by ParkerVision's 2011 lawsuit against Qualcomm over patented technology that allegedly infringed on methods of down-converting electromagnetic signals, where initial jury findings sided with ParkerVision.
The recent Federal Circuit ruling underscores critical legal principles regarding the application of collateral estoppel, reinforcing that expert testimony deemed unreliable can have disastrous implications for cases reliant on such evidence.
With the Federal Circuit's decision to reverse previous rulings and remanding the case, it sets a precedent on how the courts evaluate patent infringement and expert testimony in future litigation.
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