7548763

Lemko sued Microsoft and Affirmed Networks in the Northern District of Texas alleging infringement of the '988 patent along with seven other patents. The case was in the pleading stage, with the court granting motions to dismiss in part and later without prejudice with leave to amend. A Lemko press release stated the court denied Microsoft's motion to dismiss Lemko's direct and indirect infringement claims, though Unified Patents lists the case as closed.

Inter partes review of U.S. Patent 7,548,763 challenging claims 1, 4, 6, 9, and 15. Lemko Corporation was the patent owner; the PTAB did not institute review on the merits. The petitioner caption was not confirmed from the narrative.