Different Evidentiary Burdens in IPR Proceedings and District Court Means No Collateral Estoppel Effect on Related Patent Claims
6 days ago 3
After ten years of litigation, the Federal Circuit found that the district court conducted an improper collateral estoppel analysis and upheld ParkerVision’s position on each of the appealed issues.[1] Background In 2011, ParkerVision sued Qualcomm alleging that it infringed its patented technology for down-converting electromagnetic signals using “energy sampling.” A jury rejected Qualcomm’s invalidity claims and found... Continue Reading
