Court Takes Issue with DJ Filing Prior to IPR
Patent infringement defendants seek IPR of patents asserted against them at the PTAB as an alternative to higher cost litigation. That is, a primary benefit of seeking IPR is the ability to seek a stay of the costlier district court action on the basis that the outcome of the IPR may moot the dispute through cancellation of the asserted claims, or at least greatly simplify the issues for trial.
Yet, not all patent litigation is initiated by patent owners. Often times a potential defendant will seek a Declaratory Judgment (DJ) to secure a favored district court forum in anticipation of an imminent litigation in a less favorable district (typically Texas)
Recently, the District of Delaware considered the impact of such proactive conduct on the typical IPR stay analysis.