It’s been 10 years since VirnetX Inc. first sued Apple Inc., alleging that Apple’s FaceTime and VPN on Demand features infringe its patents on securing private data across networks.

Nevada-based VirnetX, founded by former employees of Science Applications International Corp., has since been through five trials with the iPhone maker while facing at least 30 U.S. Patent and Trademark Office validity challenges from Apple and several more from hedge funds working alongside the tech giant.