Even after Jury Trial and Final Judgment in Favor of Patent Owner, Collateral Estoppel of Invalidity from a Subsequent, Other Proceeding Applies
The plaintiff, U.S. Ethernet Innovations, LLC ("USEI"), filed a patent infringement action against several defendants in the Eastern District of Texas. The district court then transferred the cases to the Northern District of California. While litigation in the Northern District of California proceeded, USEI filed another patent infringement case against Texas Instruments Incorporated ("TI").
The TI case then proceeded with two jury trials. The first jury returned a verdict finding that the patents-in-suit ("Early Transmit Patents") were not invalid. The second jury found that TI infringed the asserted claims of U.S. Patent No 5,434,872 and awarded USEI $3,000,000.00 in damages. After the district court rejected TI's equitable defense of laches, the district court entered a Final Judgment in the case, but the Final Judgment "specifically noted that the Court was still considering the issues raised in the parties' post-verdict briefing."